Good morning, and welcome to the O'Reilly Automated 4th Quarter and Full Year 2019 Earnings Conference Call. My name is Zanera, and I'll be the operator for today's call. At this time, all participants are in a listen only mode. Later, we will conduct a question and answer session. I will now turn the call over to Mr.
Tom McFall. Tom, you may begin.
Thank you, Zenera. Good morning, everyone, and thank you for joining us. During today's conference call, we will discuss our Q4 2019 results and our outlook for the Q1 and full year of 2020. After our prepared comments, we'll host a question and answer period. Before we begin this morning, I'd like to remind everyone that our comments today contain forward looking statements and we intend to be covered by and we claim the protection under the State Harbor provisions for forward looking statements contained in the Private Securities Litigation Reform Act of 1995.
You can identify these statements by forward looking words such as estimate, may, could, will, believe, expect, would, consider, should, anticipate, project, plan, intend or similar words. The company's actual results could differ materially from any forward looking statements due to several important factors described in the company's latest annual report on Form 10 ks for the year ended December 31, 2018 and other recent SEC filings. The company assumes no obligation to update any forward looking statements made during this call. At this time, I'd like to introduce Chris Jeff.
Thanks, Tom. Good morning, everyone. Welcome to the O'Reilly Auto Parts Q4 conference call. Participating on the call with me this morning are Jeff Shaw, our Chief Operating Officer and Co President and Tom McFall, our Chief Financial Officer. David O'Reilly, our Executive Chairman and Greg Hensley, our Executive Vice Chairman are also present.
To begin today's call, I would like to congratulate all of our team members on their solid results in 2019. As a result of your commitment to our dual market strategy and the O'Reilly culture values, we generated full year comparable store sales growth of 4%. In a difficult macro environment, rising selling prices, rising acquisition costs and rising expenses, your focus on profitable growth while maintaining expense control resulted in full year sales growth of 6.4% and an increase in operating profit of 5.8%. For 2019, we generated our 27th consecutive year of comparable store sales growth, record revenue and operating income every year since becoming a public company in 1993. And I'd like to thank team O'Reilly for your many contributions to support our growth and success in 2019.
Before I get into the results, I would like to call out our press release from August 20, announcing we've entered into an agreement to purchase Mayasa Auto Parts headquartered in Guadalajara, Mexico, and report to you that the transaction is closed and Maesa became a part of team O'Reilly at the end of November. MYASA is an amazing family run business founded over 65 years ago and has a very similar history and culture to O'Reilly. They currently operate 21 Ormont branded auto parts stores and supply over 2,000 jobbers through their 6 distribution centers. Because of their current mix of business, they run at a lower margin than the Ooyala U. S.
Stores, so they are slightly diluted to our operating metrics in the Q4, but did not have a material impact on our earnings per share results for the year. 2020 will be a learning and planning year as we work with the experienced MYASA leadership team to develop our future expansion plans. And as a result, our Mexico operations will be dilutive to our operating metrics in 2020, but will not have a material impact on our earnings per share. That said, we're very excited about the addition of the 1100 plus MYASA team members, and we have a great opportunity to grow our footprint in Mexico over time. Now we'll cover our 4th quarter results and key expectations supporting our 2020 guidance.
Our comparable store sales for the Q4 grew at 4.4%, which was in line with our expectations as both DIY and professional contributed strongly to our comparable store sales growth, with professional continuing to outperform DIY. From a comp store sales progression standpoint, sales of our key undercar categories remained strong all quarter in line with the trends we saw throughout 2019. However, the lack of winter weather in most of our markets in December resulted in below expected levels of sales for cold weather categories. This marks the 2nd year in a row that December sales have been below our expectation. Now we'll move on to the impact of inflation on our 2019 results, how we anticipate it will affect 2020 and the other drivers of sales we expect in 2020.
For the Q4, same SKU inflation was at 3.5% for the full year. I'm sorry, it was 3.5% and for the full year inflation was 3%, which was above our beginning of the year estimate of 2% as additional rounds of tariff increases went into effect. This higher than expected rate of inflation didn't affect our comparable traffic, which came in slightly above our expectations, but it did have a marked effect on the composition of our average ticket. Because of the increasing complexity of replacement parts on newer more advanced vehicles, we historically have seen robust growth in our base average ticket without the benefit of same SKU inflation. In 2019, we experienced meaningful same SKU inflation and some consumers reacted by buying down the value spectrum and consciously limiting the number of items per ticket, resulting in a lower than expected growth in the base average ticket.
The combination of higher than expected same SKU inflation and lower base ticket growth resulted in total average ticket growth slightly below our expectations. For 2020, we expect same SKU inflation to be 1% as we annualize last year's price increases and are not planning for changes in the current tariff structure. With the lower year over year selling price increases, we expect traffic count to improve and average ticket to remain a steady contributor to comps as the diminishing tailwind from same SKU inflation is mitigated by a return of the base underlying growth and average ticket to a more historical growth rate. Historically, we focused on growing our per store inventory slower than comparable store sales we generate. We're going to change that for 2020.
Ongoing SKU proliferation and the inflation related to increases to acquisition costs, we feel we have an opportunity to improve our store level inventory position and build upon our industry leading parts availability. In addition to the growth in inventory we would normally see in 2020 from new stores and product additions, we'll be adding through the course of the year just over $100,000,000 of additional inventory to our store and hub network. And from past experience, we know this will enhance the service we provide to our customers and drive sales. From a macro perspective, we anticipate that the demand drivers for the automotive aftermarket industry will remain solid as the robust saw years beginning after the Great Recession continue to roll into our more addressable market and miles driven continues to grow at a moderate pace supported by continued record high levels of employment and stable gas prices. Based on our team's ability to provide industry leading customer service and gain market share and the impact of inflation, our inventory initiatives and the overall outlook for the aftermarket, we're establishing our full year comparable stores guidance and store sales guidance at 3% to 5%.
Our current business trends thus far in the Q1 continue to reflect solid growth in our core undercar and underhit categories. However, the lack of cold weather has been a significant drag on seasonal sales. So at this point in the quarter, we're behind where we would like to be. As a result, we're establishing our 1st quarter comparable sales guidance at 2% to 4%. For the Q4, gross margin was 53.3 percent of sales, which was lower than expected due to the acquisition of MYASA and lower than expected sales of cold weather categories.
For the full year, gross margin came in at 53.1%, which was towards the top end of our guidance range. As we discussed on last quarter's conference call, our gross margin benefited from sell through of on hand inventory that was purchased prior to tariff driven acquisition price increases, which have gone into effect in stages starting in the second half of twenty eighteen and continuing throughout 2019 and the corresponding retail and wholesale price increases. During the past month, several of our key categories have received partial tariff exceptions. This will reduce the level of benefit we had expected to see in the first half of the year as we excel through the old merchandise. However, the reduction of replenishment acquisition costs will benefit us throughout the year as we anticipate.
Current higher selling prices will remain in effect as we and others in our industry maintain rational pricing in the face of continued SG and A pressures. In aggregate, for 2020, we expect our gross margin to be in the range of 52.5% to 53% with the year over year decrease due to dilution from MYASA and less tailwind from merchandise purchased before the tariff related acquisition cost increases. Operating profit for the 4th quarter came in at 17.8% of sales, which is below expectations based on how we expected gross margins on weak cold weather sales pressure on SG and A, which Jeff will discuss and dilution from Miassa. For the full year, operating profit was 18.9%, which was slightly below the midpoint of our guidance due to the shortfall in the 4th quarter. In 2020, we expect operating profit to be in the range of 18.4% to 18.9%.
The decline from prior year is due to a lower gross margin as I discussed, pressure on SG and A, which again Jeff will discuss and the dilution from MYASA. For the Q4, earnings per share of $4.25 represented an increase of 14% as the shortfall in operating profit was more than offset by a lower tax rate, which Tom will cover in his comments. For the full year, earnings per share were $17.88 which represents an 11% increase over 2019. For the Q1 of 2020, we are establishing earnings per share guidance of $4.37 to $4.47 And for the year, our guidance is $19.03
to $19.13
Our quarterly and full year guidance includes an estimate for the excess benefit from stock options and the impact of shares through this call, but does not include any additional share repurchases. Before I turn the call over to Jeff, I'd like to briefly discuss our recent leadership conference. 2 weeks ago in Dallas, we held our annual leadership conference attended by each of our store managers, sales team members, field management and distribution management, totaling over 7,000 O'Reilly team members in all. The theme of this year's conference was Every Customer Counts. And we spent a lot of time talking about focusing on the fundamentals even more, rolling up our sleeves and out hustling and out servicing the competition.
Tim O'Reilly left Dallas extremely motivated and I'm very confident in our team's ability to provide excellent customer service and gain market share in 2020 and beyond. I'll now turn the call over to Jeff Shaw.
Jeff? Thanks, Greg, and good morning, everyone. I'd also like to thank T. O. Riley for delivering another record breaking year.
Your hard work and commitment to excellent customer service has always been the strength of our company and will continue to be our strength in the future. As Greg mentioned earlier, our SG and A for the Q4 came in higher than expected, with average per store SG and A growing 4.7%. The primary driver of these unexpectedly high results were medical costs, with claims coming in much higher than expected. Also contributing to the above expected SG and A was store payroll, where we continue to see ongoing pressure from near full employment and statutory increases to minimum wages. For the full year, personal SG and A increased 3.4%, which exceeded our beginning of the year guidance at 2.5% to 3%.
The main drivers that took us above our guidance for wage pressures from near full employment, delays in new store openings earlier in the year, health benefit cost, cost of insurance, primarily auto related and a larger than expected charge for deferred compensation, although the offsetting benefit for that item shows up in other income. Looking forward to 2020, we expect SG and A per store to grow in the range of 2.3% to 2.8%, which is above our historic run rate of 1.5% to 2%. We will be above our historic rate due to continued pressure on wages, continued pressure on the cost to cover our large vehicle fleet and ongoing technology investments, offset in part by the expectation that we will return to a more normal run rate for health benefit cost. Our capital expenditures for the year were $628,000,000 which was at the bottom end of our full year guidance of $625,000,000 to $675,000,000 but substantially higher than the previous 3 years, which averaged 4 $80,000,000 We had a very busy year in 2019, opening 200 net new stores, converting 20 acquired Bennett Auto Supply stores to O'Reilly stores, opening a new distribution center in Twinsburg, Ohio during the Q4 and developing our other DC projects, including substantial progress on our new Nashville DC, which will open early Q2 of 2020 and our Horn Lake DC just south of Memphis, which will open in the 4th month of 2020.
Also during the Q4, we were able to acquire existing distribution space contiguous through our Springfield, D. C. And corporate campus. With fewer distribution projects and lower net store additions based on our target of 180 net new stores, we would normally expect our capital expenditures to come down. But we are going to again set our capital expenditure guidance at $625,000,000 to $675,000,000 for 2020.
Part of the reason for the elevated level of the 2019 projects that roll into 2020. However, the more exciting reasons are the projects we have slated for this year. We have a large number of exciting projects and initiatives, but let me add some color to the more capital intensive ones, which include: 1st, converting the hardware that runs our stores. Currently, our store systems run partially on a Linux server and partially on our IBM AS400. Both pieces of equipment are a single point of failure for our stores.
In 2020, we will convert all of our store systems to run on redundant Linux servers, which will eliminate the times the store computer system is down and the store teams are forced to use paper catalogs and write manual sales tickets. This project also puts pressure on our SG and A as we must fully depreciate all of the store AS400s by the end of the year. 2nd, we will aggressively modernize our fleet semitrucks in 2020. The enhanced safety features, improved fuel economy and maintenance savings on the project yields a great return on our investment. We're also planning to increase our spend on investments that drive energy savings in our stores.
Over the past few years, we have steadily converted our store lighting to LED technology. We've been so pleased with the savings from lower electricity usage and maintenance combined with the superior image in the stores that we're accelerating this project. Now one byproduct of this conversion is that the LEDs shine a bright light on some of the wear and tear in our high volume Workhorse stores. As a result, we will be remodeling more store interiors this year than is typical to our capital plan. As I mentioned earlier, ensuring our substantial vehicle fleet continues to put pressure on our SG and A.
We continue to have a very good accident rate. However, the cost of each accident continues to grow significantly for all large fleet operators. To better protect the safety of our team members and others while working to minimize our losses, we're testing a variety of crash avoidance and monitoring tools to improve the accident rate of our store based fleet, and those projects are included in our CapEx plan for 2020. The last item I'll mention is our omnichannel efforts. We will continue to invest heavily in enhancing our omnichannel capabilities to meet our customers on their terms with solutions that meet their specific needs, whether they visit a store, call or click.
This initiative puts pressure on our expenses as well as our capital expenditures. As Greg mentioned earlier, 2020 will be a learned and planned year as it relates to Miossa. So we don't expect a meaningful capital stem this year, but that will change in future years. We have always geared our business model to generate long term sustainable growth that is solidly profitable. We're very confident our SG and A spend, our additional inventory investment and our capital investments in 2020 will put us in a great position to continue our history of success.
However, we're an extremely proactive and detail oriented company. And should situations change or additional opportunities arise, we will make changes to our investment strategy on a store by store, project by project basis. As I conclude my comments, I'd like to again thank the entire O'Reilly team for a solid year in 2019. As we preached at the conference and talk about every day, when we focus on the fundamentals of customer service and consistently execute our business model, team O'Reilly truly makes every customer count. And I'm confident our team will do that again in 2020.
Now I'll turn the call over to Tom.
Thanks, Jeff. Now we'll take a closer look at our quarterly results and our guidance for 2020. For the quarter, sales increased $168,000,000 comprised of $100,000,000 increase in comp store sales, a $58,000,000 increase in non comp store sales and a $10,000,000 increase in non comp non store sales. For 2020, we expect our total revenues to be between 10.7 $1,000,000,000 $11,000,000,000 Our 4th quarter effective tax rate was 20.6 percent of pre tax income, which was lower than expected based on a larger than expected benefit from share based compensation and is comprised of a base rate of 23.8%, reduced by a 3.2% benefit for share based compensation. This compares to the Q4 of 2018 rate of 23.6 percent of pre tax income, which was comprised of a base tax rate of 24%, reduced by 0.4% benefit for share based compensation.
For the full year, our effective tax rate was 22.3% of pretax income comprised of a base rate of 23.8 percent reduced by 1.5% benefit for share based compensation. For the full year of 2020, we expect an effective tax rate of 23.2% comprised with base rate of 23.6 percent reduced by a benefit of 0.4 percent for share based compensation. We expect the 1st and 4th quarter rates to be lower than the 2nd and third due to similar tax credits in the first and tolling of certain tax periods in the 4th. Also variations in the tax benefit from share based compensation will create fluctuations in our quarterly tax rate as a percent of pre tax income. Now let me add some color to our free cash flow and the components that drove our results for the year and our expectations for 2020.
Free cash flow for 2019 was $1,000,000,000 which was $170,000,000 decrease from the prior year. The decrease was driven by higher net inventory investment, cash taxes and capital expenditures, offset in part by increased operating profit. In 2020, we expect free cash flow to be in the range of $1,100,000,000 to $1,200,000,000 with the year over year increase due to increased operating profit and lower cash taxes, offset in part by higher investments in capital expenditures. Inventory per store for the U. S.
Stores only at the end of the quarter was 631,000 which was a 3.1% increase from the end of 2018. The increase above our expected range of 2% to 2.5% was due to acquisition price increases and slow December sales. As Greg mentioned earlier, we're going to make additional inventory investments in 2020 and expect our per store inventory to grow 5%. Our AP inventory ratio for our U. S.-based business at the end of the 4th quarter was 104.6%, which was below our expectations and below the 105.7% where we ended 2018.
For 2020, we expect to slow slightly more and finish the year at 104% based on the inventory initiatives Greg discussed. Moving on to debt. We finished the 4th quarter with an adjusted debt to EBITDA ratio of 2.34 times as compared to our ratio of 2.23 times at the end of 2018. The increase in our leverage ratio reflects our May bond issuance and borrowings on our unsecured revolving credit facility. We're below our stated leverage target of 2.5 times and we'll approach that number when appropriate.
We continue to execute our share repurchase program and for 2019, we repurchased 3 point 9,000,000 shares at an average share price of $369.55 for a total investment of $1,400,000,000 Subsequent to the end of the year through the date of our press release, we repurchased 200,000 shares at an average price of 4.28 $0.29 We remain very confident that the average repurchase price is supported by expected discounted future cash flows of our business And we continue to view our buyback program as an effective means of returning excess capital to our shareholders. Finally, before I open up our call to your questions, I'd like to thank the O'Reilly team for their dedication to the company and our customers. This concludes our prepared comments. And at this time, I'd like to ask Zenera, the operator, to return his line and we'll be happy to answer your questions.
Thank you. We will now begin the 30 minute question and answer session. Our first question comes from Mike Baker from Nomura. Please go ahead. Your line is open.
Hi, thanks. I just wanted to ask a follow-up on the gross margin outlook. You said one of the reasons why it won't be as strong is due to some tariff relief, which I guess means that that won't lead to as good as gross margin because you don't expect to be able to increase retail prices as much. Is that right? And then as part of that, you go on to say that you still expect a benefit from lower acquisition costs throughout the year.
So I'm just trying to square those 2. Is it that you expect the benefit, but it just might not be as big of a benefit as you had previously thought?
I'll start there. Sure, Mike. This is Tom. So two pieces to that question. So first, we expect to see a LIFO benefit mainly in the first half of the year.
Our LIFO calculation is a total pool. So as these cost acquisitions come in, they immediately reduce the total pool. So that's the first part of the question. The second is these lower acquisition costs on these specific product lines as the sale prices remain high, we'll generate more gross margins. So we'll gain that initial charge back over the turn of the good, which is why we'll see in the second half of the year more benefit and less benefit in the first half.
Okay. And one quick follow-up, would the if not for the Maesa acquisition, would the gross margins still be down? I guess we're trying to figure out how much of an impact that is you said. I think you said slight. So just trying to figure out, I guess, how slight?
So we discussed this on last quarter's conference call that the lower benefit from products purchased before the tariffs would abate during 2020 and we'll see that in the second half. We didn't quantify the amount, but that's the main driver that our that combined with biopsies are the drivers for a lower gross margin.
Okay. Thanks for the color.
Thank you. Our next question comes from I'm sorry, Greg Badishkanian from Citi. Please go ahead. Your line is open.
Hey, guys. Good morning. David Bellinger on for Greg. So I just want to follow-up on the improving traffic of late. Can you give us some more color in terms of on the DIY side of the business?
Was that still negative in Q4 in terms of traffic? What are the underlying drivers here? And you mentioned some improvement baked into the 2020 guidance in terms of traffic, are you expecting that to build throughout the year? And should we think of or should we see from you any type of competitive pricing actions on your part to try to help drive that improvement?
Yes. So the first part of your question, what was the makeup of traffic? What I would tell you is that traffic for the 2nd quarter in a row overall was positive. The cash traffic was slightly negative, which was more than offset by the charge traffic.
Tom, do you want to take the Yes, the second, our expectation for 2020 is that as we anniversary the pressure on AIY ticket count, which those customers are more susceptible to rising prices, as we annualize those price increases and annualize the pressure on the ticket count that we will see growth in that ticket count.
Got it. Okay. And then So
it's negative swinging to slightly positive. And your answer is yes, it should improve over the years. We anniversary more of the tariff related price increases.
Understood. And then my follow-up, a bit more nearer term in nature. For Q1, the guidance there, you're up against your easiest comparison in the year. They're still looking for comps in that 2% to 4% range. So is that all weather related?
Are you currently within that range now? Or is there some acceleration embedded in the back half of the quarter?
Yes. What I would tell you is obviously Q1 is always a volatile quarter for us that can be significantly impacted by weather. We're very early in the quarter. There's a lot of the quarter remaining. The primary the drivers the fundamental drivers of categories are performing well.
When you look at the undercar, under hood categories, we're pleased with how we're performing there. We're really missing on the weather related categories because of the atypical weather that we've had thus far in the quarter.
The thing that I would add to that is as we move through the quarter and it starts to warm up south to north, those drivers of our business historically, the weather related categories become less of a portion of our total sales. And January is a low volume month for us, more than 2 thirds of the quarter are still in front of us.
All right. That's very helpful.
Thanks guys and good luck.
Thanks. Thank you.
Our next question comes from Liz Suzuki from DOA. Please go ahead. Your line is open.
Thank you. I was just curious why you think you won't be able to leverage SG and A on a 3% to 5% same store sales growth number. It just seems like the operating margin outlook is a bit lighter than what we were modeling. And I get that there's going to be some dilution from MYASA, although it seems like it's such a small business that I maybe I'm surprised that it's been called out as such a margin headwind. And then we would have expected that some of your previous investments are starting to lap and there should be an opportunity to drive more dollars to the bottom line.
So I was just hoping you could break out some of that operating margin pressure. Let me we're
continuing to see benefits as we lap these inflationary we're continuing to see benefit as we lap these inflationary price increases. But as a small unit, especially retail, our number one expenses is payroll. And that continues to be an area where both low unemployment and statutory rates continue to push that number up. So in Jeff's comments, we talked about the fact that SG and A would be above our historic norms. We do continue to see efficiencies, which is being offset by those pressures, and we continue to invest heavily in our technology and that continues to pressure SG and A as it has over the last few years.
Well, I would just add that we always you have to pay what the market bears and there is a lot of pressure on wages. It has been for a couple of years with also with the statutory minimum wage increases. But we always do our best to leverage that by trying to increase team member productivity through additional team member training, additional technology, which is why we're investing in the technology initiatives.
Okay, great. And just on my asset, I mean, is there perhaps some conservatism in these estimates just accounting for unknown factors, given that this is your first venture abroad and maybe you're trying to bake in a certain level of conservatism there just to account for the fact that it's a new venture for you?
So when we look at my assets, relatively small in comparison. And when we look at this acquisition, it's really about developing a footprint that we can expand. So we will be in there working on buying synergies and cost synergies that you would expect, but we'll also be investing to build the team and the processes to build a much larger organization. So we're going to add expenses to accelerate our ability to grow All
right, great.
Thank you.
Thank you. Our next question comes from Bret Jordan from Jefferies. Please go ahead. Your line is open.
Hey, good morning, guys.
Good morning.
Talk a little bit more about the tariff exceptions you mentioned in some key categories. I guess, is that something that you could expect to receive rebates from past tariffs paid?
Yes. So Brett, we really got 3 primary categories that we've seen some exception in and it's not across the board. For example, rotors has an exception, but the exception is only on a certain diameter or circumference rotor. So the larger rotors didn't get the exception, the smaller rotors did. Most of the exceptions that have been granted are retroactive and we would expect to get the tariffs paid today back as well.
Okay. Any sort of sizing of those?
No. We really don't have anything we want to disclose there, Brett.
All right.
And then a question on the inventory expansion, adding 100 plus. Is that existing coverage of same of inventory you currently carry? Are you going to be expanding branded or private label SKUs to sort of new pieces of the parts mix?
Yes. So it's here's kind of what we're doing. We've been successful for years with our inventory deployment strategy. And the strength of our supply chain is one of our greatest strengths. Markets continue to change.
The marketplace continues to change and we're trying to make sure that we're adapting accordingly. We're not changing anything related to depth or breadth of inventory in our distribution centers. What we're looking at is as the consumer, especially the professional customer, as their expectations continue to increase on prop delivery time, in stock position from all of our stores. Even though we'd replenish our stores daily and they get multiple deliveries in markets where we have a distribution center or through our hub store network where we don't, we're trying to push more individual SKUs down to the spoke store level and the hub store level. So what we're doing is adding not depth, but more so breadth of SKUs at our hub and spoke stores.
And it's not specific to private label or national brands. It's just trying to get more inventory out there available to drive sales.
Okay. Great. Thank you.
Brett, this is Tom. I'd like to add something to the first question on tariff exceptions. I'd highlight to yourself and others on the call that we worked very hard at making sure that we didn't take the full tariff increases through looking at the currency, through other sourcing, through sharing those less than the actual headline tariff number.
Right, right. Yes, sure. Thank you.
Thank you. Our next question is from Daniel Imbro from Stephens. Please go ahead. Your line is open.
Good morning, guys. Thanks for taking my questions. I wanted to start on the comp outlook. Understanding you guys have talked about a few initiatives today and obviously traffic getting better through the year seems to be implied. But the full year guidance implied acceleration on the 2 year stack as we move through the year as comparisons get tougher.
Could you maybe help us think through the buckets in more detail? Is that an assumed sales uplift from remodels? Is that just the traffic getting better? Can you talk about what gives you confidence that 2 year stack should improve as we move through the year?
Yes, I'll start that and then let Tom add on. I think it's a combination of everything you said there. I mean, I think the appearance will help, the store appearance package changes will help. I think the inventory availability initiatives we have underway will help. I think all the things that we're talking about from a CapEx perspective that would help drive sales is going to help our comps for the year and our 2 year stack.
As I said earlier, we're not overly disappointed with how we're performing in our key categories under car, under hood, the categories that you expect to sell throughout the year. The softness in the Q1 is primarily related to those seasonal items. It's the batteries, it's the wiper blades, it's the categories, antifreeze washer fluids, the things that you sell during the winter when you have extremely cold weather that causes breakage and wear and tear. And we just haven't seen that thus far in the year. Again, it's very early in the year and then there's still an opportunity to have a lot of cold weather in the remaining weeks of February and we certainly hope we do and sales for those categories pick up.
But we're optimistic about the categories that drive our business day in and day out from an under hood, under car perspective.
To add to Greg's comments, we finished 2019 with a 7.8% 2 year stack and at the midpoint of our guidance at the end of 2020, we would get 8%. So what we would say is that we expect the underlying dynamics of the automotive aftermarket and our execution of our business model will remain robust and will be consistent. Now we expect to see some improvement in traffic, less inflation, but a different composition of our average ticket. So we would view our outlook for 2020 to continue to be solid based on those trends.
Thanks. That's helpful. And then as a follow-up to an earlier question, on the expense side, I think we get that payroll is a pressure, but I thought your commentary in the prepared remarks was that the industry was remaining rational and that you were passing through some of that SG and A pressure through higher prices. Are you just seeing an inability to pass through that level of inflation to offset the SG and A pressure? Or can you help us understand the moving pieces there a little bit more?
Thanks.
So we do continue to pass on prices, although we would tell you right now, our view for 2020 is they'll remain static and When we look at those SG and A pressures, When we look at those SG and A pressures, our opportunity, I think, is less on the pricing side, more on returning to normal growth in our base average ticket and improving customer counts. But we, as Jeff talked about, need to make sure that we're staffing our stores appropriately at market rates. And we have a very technical workforce that makes all the difference at the store level.
Got it. Thanks. Best of luck, guys.
Thank you. Our next question comes from Zach Fadem from Wells Fargo. Please go ahead. Your line is open.
Hey, good morning. With the warmer start to January, we're hearing a lot of comparisons to 2017.
Hoping you can walk us through some
of the differences today versus 3 years ago. Why you think the setup is this time around could be different, particularly from a non weather perspective?
Yes. Zach, we think back to 2017, some of the things that we called out in 2017 are not applicable or less applicable today than they were there. 2017, we called out not only weather, but we also called out where we were with the sorry years of vehicle populations that were entering our market, the aftermarket post warranty, we talked about Hispanic hibernation post election, some of those things. And when you look back at the average age of vehicles today that are coming out of the great recession, you're well into the years that are better for our industry even than they were 2 years ago. So I would say that those are some of the differences.
Got it. That's helpful. And then could we just to put the Mexico P and L impact to rest, could you walk through your expectation for top line impact? And then just to confirm that the margin pressure sounds like it's roughly half Mexico, half core business. Could you just confirm that that's right and maybe walk us through the moving parts there?
As we have with other smaller acquisitions, we're not going to break out the economics of that acquisition. I think the key thing to know about the Mexican business is that the vast majority of their business, they're only running 21 stores. Most of their business is independent job or business and that has a different operating metric profile in company owned stores. What you're going to see is you're going to share the gross margin with the independent job or store you're selling to. So significantly lower gross margin, but you're also not bearing the expenses of the store level, so a lower SG and A.
Okay, got it. Appreciate the time.
Thank you.
Thank you. Our next question comes from Kate McShane from Goldman Sachs. Please go ahead. Your line is open.
Hi. This is Janney Lutra on behalf of Kate McShane. Thank you for taking my question. I guess my first question is, so you guys gave a 1% same store inflation expectation for 2020. But how does that vary from 1Q where you guided a 2% to 4% comp versus, say, into 35% regime into the back half of the year?
Just trying to assess where the same store inflation more in the first half of the year? Or how does that vary?
Definitely more in the first half of the year, very little or much less in the Q3 and virtually not in the Q4. In the Q4 of this year, most of the items were slightly higher than we expected to be and that was on base commodities.
And I would say the guide was more so based on weather related demand and the impact of inflation in the Q1 and the remaining three quarters.
Got it. That's very helpful. And if I could get a follow-up question on your supply chain. So obviously, a lot of retailers have been talking about coronavirus. Just trying to assess, are you seeing any impact on your supply chain from that part of the world?
Not yet. One of the differences in us and a lot of our competitors in the industry is we all bring a lot of product in from China. That's no secret. The timing of this coronavirus kind of correlated with Chinese New Year. So we had already bought product in advance planning for the shutdown from Chinese New Year.
One of the advantages that we have is there's not a lot of product that has a demand cycle that warrants bringing it from China directly into our individual PCs. So rather we negotiate with our suppliers to keep a number of days of inventory on hand in their distribution facilities within the U. S. So we've got built up inventory within the U. S.
That will keep us for probably 2 to 3 months that before we would see the impact from product coming from China.
Great. Thank you.
Thank you. Our next question comes from Chris Leary from Wolfe Research. Please go ahead. Your line is open.
Hey, guys. This is Jake Mose on for Chris. Thanks for taking the question. So first, could you just talk a little bit more about the health benefit expense in the quarter? I think you said it would normalize as the year goes on.
So is this like a one time true up? Or if not, like what drove such a large one time expense?
So we're fully self insured for health benefits. And they have not a very long time from initial claim to when you know the full extent of the claim, months. So what we saw was our 3rd quarter mature in a way that was much higher than we thought and 4th quarter come in a lot higher. But health benefits have a fluctuation and we've had good years and good quarters and we've had rougher years and rougher quarters and it really some of it is just statistics and odds. What we looked at was a few really big claims and more medium to larger claims than we'd expect.
Impossible to predict fully, but we would expect this to be more of an outlier and expect 2020 to follow more historical medical trends for our population.
Got you. And then secondly, can you just talk about the timing of the 2020 DC openings? And is there anything we should be thinking about in terms of cost pressures or comp lift as these are built out and opened?
Jeff, do you want to take that?
As far as timing, the Lebanon DC will roll in the second quarter and then the Horn Lake or Memphis DC will roll in, in the last quarter of the year. From a cost perspective, we would expect to feel some cost pressures. This reason is included in our gross margin. It's not a huge number, which is why we didn't call it out separately.
All right. Thank you.
Thank you. Our next question comes from Michael Leyser from UBS. Please go ahead. Your line is open.
Good morning. Thanks a lot for taking my question. In the past, the aftermarket has seen a prolonged impact from the lack of cold weather and particularly in the spring from the lack of corrosive material that's put on the road and from potholes. It seems like looking at your guidance, you're assuming that that won't be the case this year. Why would this year be different?
And as part of that question, as you do look at your full year comp guidance, do you see more risk in the front half of the year from the weather or in the back half of the year from the lack of tariff related inflation?
Yes, Mike, I'll take the first part of that and then let Tom talk about the first half versus back half of the year. As I said earlier, our weather related categories and the fact that our sales have remained strong on those typical wear and tear categories such as undercar steering, chassis, things like that, through the 1st few weeks of the year and the tail end of 2019, that gives us confidence that those repairs and those hard part categories will still perform well for us.
So to take on the rest of the question, Michael, as we get near the end of the season, people will defer true seasonal purchases, whether that's air conditioning season or in this case, cold weather. We'd expect the rest of the winter to be normal. Precipitation is really what creates the rough road. So we'd expect that to be normal and that hasn't been as different. You remember last year we had the polar vortex, which that cold weather really drives the seasonal.
So between that and a better vehicle dynamic as opposed to 2017, where we're going to harder vehicle dynamic, gives us confidence in the experience that our underlying core categories have been good. As far as the risk to comps throughout the year, what we would tell you is that we're not in an underserved market. We need to continue to go out and execute better than our competitors and grow our market share every day, whether it's the Q1 or Q4, and it will be the same next year. When we look at our comps, we continue to perform very consistently, a lot of it driven by the vehicle dynamics by reasonable gas prices, by high levels of employment and we expect that to continue throughout the year. So our expectations for comps will be relatively consistent in the second, third and fourth quarter, Q1 or by January lack of cold weather categories.
Thanks for that. And your gross margin guidance for this year has caused a lot of conversation and debate. Should we expect that once you get past this inventory accounting dynamic that your gross margin should be stable to growing over the long term?
Well, what we would tell you is that our focus is on comp gross margin dollars. And as we saw this year with same SKU inflation, we're able to generate more comp gross margin dollars at a similar rate. So we always try to improve our acquisition costs and the efficiency of our distribution and squeeze out those costs to drive better gross margins. So our expectation is that it will be stable to slightly growing.
Thank you very much.
Thank you. Our next question comes from Simon Gutman from Morgan Stanley. Please go ahead. Your line is open.
Hi. This is Josh Camwood on for Simeon. Thanks for taking our questions. It sounds like a larger than usual number of store and technology projects are coming to fruition this year. Combined with the increase in the DC openings in the recent MYAS acquisition, it looks like there's a greater sense of urgency around investing than in the recent past.
Is that a fair assumption? And if so, can you talk about what might be driving that and potential areas of mis execution that you might be monitoring especially closely?
Yes. I mean, there's you can break it down by categories. In some categories, there's a greater sense of urgency, some of just being ongoing initiatives. An example of a greater sense of urgency would be the replacement of our store point of sale systems. Over the past, on making our systems more stable in our stores, so that entails both making sure our communication networks are redundant and dependable as well as making sure the systems themselves have high availability.
And when you look at a dated platform like the AS400, when those machines fail, it takes some time to come back up. And to Jeff's comments in his prepared statements, that creates downtime for the stores and creates manual processes, which doesn't result in a very favorable customer experience. So that's a big spend for us. It's a big lift. It's something we've been working on for a few months now and we fully expect to roll those out by the end of the year.
Some of the other investments are just they just have the right return and the things we need to do. We've seen savings in our utility expense in 2019 as a result of the LED lighting initiatives in our stores and our DCs and we're extending that both from an appearance standpoint, which should help with sales as well as the financial return. Another example of an initiative with a high ROI is our delivery fleet, our DOT fleet. That's going to do several things for us. Our fleet is an aging fleet.
We've always depreciated our trucks over an extended period of time. And over the years, those trucks have become much more efficient. So by replacing a significant portion of our trucks this year, it does several things for us. One, it reduces our maintenance cost because it's new equipment. 2, it should help with our driver hiring and retention because it's new equipment, drivers like to drive new equipment.
There are many drivers out there that are not certified to drive trucks with manual transmissions. All of our new trucks will have automatic transmissions, which opens up the applicant pool significantly. And also that allows us to have more collision avoidance on our trucks and more technology on our trucks. So it's a combination of all the above. Some of it is based on ROI, some of it is based on driving sales and some of it is just out of necessity like the computer system replacements in our stores.
Thank you. And then your Q4 comps were obviously pretty healthy and better than you were expecting. Did you see evidence that you gained significant share in the quarter perhaps? Or was it more a function of maybe your store footprint? And then just related to that, can you talk about some specific factors you might have assessed and embedded in your 2020 guide, for example, the extra day because of the leap year, potential sales risks in 2H around the election, anything like that to be aware of?
Joe, on the comp question for leap day, we don't include that in our comps. So that day just becomes a non comp day. When we look at around the election, our expectation is that we won't see significant disruption around the election. As far as the Q4 comps, I mean, we came out of Q3 pretty strong and that carried into Q4. It just as Greg mentioned in his prepared comments, it softened up pretty widespread in December.
As far as taking market share, I mean, it's always our goal to be the dominant supplier in every market we operate in. And that's what we focus on fundamentally in all of our stores across the country every day. It's just the fundamental execution and top notch customer service, trying to build relationships with all the customers in the market, both retail and professional. Understood. Thank you very much.
Thank you. We have reached our allotted time for questions. I'll now turn the call back over to Mr. Greg Johnson for closing remarks.
Thank you, Zanara. We'd like to conclude our call today by thanking the entire O'Reilly team for our solid Q4 and full year 2019 results. We look forward to a strong year in 2020. And I'd like to thank everyone for joining our call today. We look forward to reporting our 20 2Q1 results in April.
Thank you.
Thank you, ladies and gentlemen. This concludes today's conference. Thank you for participating. You may now disconnect.