Good morning, and welcome to the Analog Devices first quarter fiscal year 2019 earnings conference call, which is being audio webcast via telephone and over the web. I'd now like to introduce your host for today's call, Mr. Michael Lucarelli, Director of Investor Relations. Sir, the floor is yours.
Thank you, Cheryl, and good morning, everybody. Thanks for joining our first quarter fiscal 2019 conference call. With me on the call today are ADI CEO, Vincent Roche, and ADI CFO, Prashanth Mahendra-Rajah. For anyone who missed the release, you can find it, annual leading financial schedules at investor.analog.com. Now on to the disclosures. The information we're about to discuss, including our objective and outlook, includes forward-looking statements. Actual results may differ materially from these forward-looking statements as a result of various factors, including those discussed in our earnings release and our most recent 10-Q. These forward-looking statements reflect our opinion as of the date of this call. We undertake no obligation to update these forward-looking statements in light of new information or future events. Our comments today about ADI's first quarter fiscal 2019 financial results and short-term outlook will also include non-GAAP financial measures, which exclude special items.
When comparing our results to our historical performance, special items are also excluded from these prior quarter and year-over-year results. Reconciliations of these non-GAAP measures to their most directly comparable GAAP measures and additional information about our non-GAAP measures are included in today's earnings release. As a reminder, the first quarter of 2018 was a 14-week quarter. In addition, this is the first quarter of our adoption of ASC 606 or sell-in accounting. We have restated our historical financial statements to conform to this standard and posted a two-year quarterly end market look back for revenue on our investor site. All comments during today's call on revenue growth and our commentary during Q&A will exclude this extra week and be on a sell-in basis unless otherwise stated.
In addition, as we move to sell-in accounting and further refine LTC's product mapping in the channel, we have adjusted approximately $80 million of annual revenue from communications to consumer. The new mapping does not impact industrial or automotive revenue. Okay. With that, I'll turn it over to ADI CEO, Vincent Roche. Vince?
Thank you, Mike, a very good morning to everybody. The first quarter of fiscal 2019 was another very successful quarter for ADI. In what is a challenging macroeconomic environment, we're executing soundly and delivering strong results. Revenue of $1.54 billion in the first quarter came in at the high end of our guidance, led by our strong year-over-year growth in our B2B markets. This growth was driven predominantly by continued strength in our communications market related to ongoing 4G upgrades and initial 5G deployments. Adjusted operating margins of over 41% were above the midpoint of guidance as we balanced our strategic investments with prudent discretionary spend. All told, adjusted EPS was $1.33, also at the high end of guidance. Over the past 12 months, we have generated over $2.1 billion in free cash flow, or 35% of revenue, which places ADI in the top 5% of the S&P 500.
Over that same time period, we've returned more than 100% of free cash flow to our shareholders after debt repayments. Now, while macro uncertainties continue to exist, our strong execution and results enable us to continue to invest in extending our franchise in strategic areas where we see attractive opportunities for future growth. To that end, we're investing record levels of R&D to push the boundaries of innovation and expand the breadth and depth of our franchise. In addition, we've increased our investments in our go-to-market activities to further broaden and deepen our customer reach and our engagements. The strength and resiliency of our business model allows us to innovate regardless of business conditions. This ability is imperative given the long life cycles in our markets, where our average product lifespan is a decade or indeed more.
While some competitors pull back and lose momentum in uncertain times, we plan to continuously invest to build upon our virtuous cycle of innovation-led growth. In my 30-plus year career with ADI, I've never been more confident or excited about our prospects than I am today. The third wave of information and communications technology is creating an inflection in the analog industry, and we've built a product portfolio aimed at favorable macro trends that I believe will provide tailwinds for years to come. Now I'll provide you with some examples of what we're seeing in our B2B markets specifically. Today, industrial customers are balancing CapEx deployments with tariff uncertainty. However, our customers remain focused on digitizing the factory and securing the efficiency and productivity that will fuel their future growth.
The move to the digital factory requires more high-performance signal processing and power management, additional sensors, more robust connectivity. These are all areas where ADI excels. On the automotive front, vehicle unit growth has stalled recently, but the real growth drivers, electric and autonomous vehicles, are in the nascent stages. Electric vehicles represent only 1% of worldwide sales, but industry reports suggest this will climb to more than 15% over the next decade or so. The powertrain in an electric vehicle opens the opportunity for us to address up to three times the content compared to combustion engines. Today, we enjoy the luxuries of level 2 autonomous vehicles, but the cars of the future will require higher precision and up to four times more sensors per car to provide the necessary level of safety for a fully autonomous vehicle. It's not just about radar or cameras.
We expect that these cars of the future will require lidars and IMUs as well. ADI is uniquely positioned to provide the necessary building blocks across all these sensing modalities, as well as the analog and mixed signal processing, RF and microwave connectivity, algorithms, and power management to make the autonomous vision a reality. In communications, carriers are looking to upgrade both the wireless networks and the optical backbone to deal with the ever-increasing deluge of data being created and transmitted. This additional data intensifies the need for spectral, space, thermal, and cost efficiency. With our comprehensive portfolio of software-defined mixed signal, RF, microwave, and power management technologies, we're creating very compelling solutions for our customers as they upgrade 4G networks and begin the introduction of 5G systems.
An important bridge between 4G and 5G is the introduction of Massive MIMO radio systems, and ADI's software-defined transceiver technology is at their core. These upgrades to Massive MIMO systems are just beginning today, and the increase in radio count expands our content opportunity by up to four times when compared to traditional 4G systems. This phase will be followed by network expansions to higher frequencies to increase bandwidth, as well as the upgrade of the optical backhaul and virtualization of the network to more efficiently move the data. This next wave will once again create the opportunity for ADI to address additional content, both in the radio as well as in the optical network. We see these upgrades towards 5G as a multiyear cycle that's just beginning and are expected to provide tailwinds to our business well into the future.
Lastly, in healthcare, the dual impact of an aging global population and the pressing need to more economically and effectively manage wellness is driving continued investment in our products by our customers. Here we're complementing our high-end component franchise with highly integrated subsystems, thereby extending our addressable market to capture new levels of value. For example, in digital X-ray, we're creating highly integrated photons- to- bits subsystems that enable our customers to deliver high-fidelity images at lower radiation dosages. Separately, ADI's deep expertise in vital signs monitoring and ultra-low power electronics enable clinical-grade performance under battery power, allowing us to deliver high accuracy, portable monitoring at virtually any point of use. Now in closing, as the saying goes, "A rising tide lifts all ships." The true test of a company's strategy, execution, and value is its performance during a low tide.
Now, we've chosen a strategy that focuses on innovation, diversity across technologies, markets, and applications, and continuous improvement across every aspect of our performance. The results speak for themselves. We're confident that our ethos and heritage of innovation, leadership, and high-performance analog, deep relationships with our customers, and alignment to favorable macro trends positions us to continue to outperform, capture more value, expand our addressable market, and deliver strong results for our shareholders. With that, I'll hand it over to Prashanth, who will bring you through more detail.
Thank you, Vince. Good morning, everyone, let me add my welcome to our first quarter earnings call. My comments today, with the exception of revenue and non-op expenses, will be on an adjusted basis, which excludes special items outlined in today's press release. As a reminder, the first quarter of 2018 was a 14-week quarter, we have now adopted ASC 606 for sell-in accounting. We have restated our historical financial statements to conform. As Mike mentioned, we have also posted a two-year quarterly end market look back for revenue on a sell-in basis. To normalize our growth rates and give you a like-for-like comparison, my prepared remarks and our Q&A commentary will exclude this extra week and will be on a sell-in basis unless otherwise stated. On to the quarter.
In the face of geopolitical uncertainty, we are pleased to report strong first quarter results with revenue, operating margin, and EPS all coming in above the midpoint of our guidance. Additionally, we are delighted to have increased our dividend by almost 13%, the largest increase since 2013. We also raised our dividend growth target to 7%-15% annually. This reflects our strong financial results as well as our optimism regarding ADI's future. Before diving into the income statement, let me first cover the end markets. Our first quarter B2B revenue increased 10% year-over-year, led by exceptional growth in the communication market, driven by ongoing momentum in 4G and the initial 5G deployments. The industrial market represented 47% of sales in the quarter, and revenue was roughly flat compared to the year-ago quarter.
Within this highly diversified business, revenue growth in healthcare, electronic test and measurement, aerospace, and defense were balanced by weaker demand in factory automation and memory test. The comms market represented 22% of sales during the quarter and experienced very strong double-digit year-over-year growth led by strength in wireless. This growth exceeded our expectations and illustrates the strong momentum ADI is experiencing in traditional 4G systems and in the early deployments of 5G Massive MIMO. We see 5G as a multiyear upgrade cycle that is expected to deliver continued growth over the coming years. Our auto business represented 17% of sales in the quarter, and based on sell-through revenue, was essentially flat compared to the year-ago quarter. Overall vehicle unit weakness was offset by double-digit growth in BMS, growth in power management as we bring new products to market and extend our customer reach, and ramping sales of A2B.
The 6% year-over-year reported growth from our end market breakout is primarily due to sell-in accounting as we moved some customers from direct to distribution during the quarter. Lastly, our consumer business represented 14% of sales in the first quarter. As expected, revenues declined year-over-year. However, portables declined less than expected. On to the P&L. Revenue for the quarter was at the high end of our guidance at approximately $1.54 billion, up 6% year-over-year. Gross margin came in at 70.3% and lower year-over-year due to end market mix and lower utilization rates. OpEx in the quarter was $448 million, down slightly sequentially and below the midpoint of guidance as we balanced our strategic investments with prudent discretionary spend. This translated to an operating margin of 41.2%, which was at the high end of our guided range.
Non-op expenses in the first quarter were $56 million, unchanged from Q4, but lower than a year ago due to our debt reduction of $1.2 billion over the past year. Our tax rate for the quarter was just above 14% and at the lower end of outlook of 14%-16%. All told, adjusted diluted earnings per share from the first quarter came in above the midpoint of guidance at $1.33. Moving on to the balance sheet. Inventory dollars increased slightly sequentially while days were flat at 117 compared to fourth quarter. As a reminder, in the coming quarters, we will begin to build bridge inventory ahead of the closure of our front-end and back-end facilities that we expect to deliver another $100 million of cost synergies. We plan to modestly increase our inventory days temporarily until these closures are complete.
Distribution inventory days were down both sequentially and year-over-year and remain in our target range. CapEx in the first quarter was $91 million or 6% of sales. For the full year, we anticipate CapEx may run modestly higher than our 4% model due to the co-location of our product and business development teams, and additional capacity to support future linear growth. This would be a temporary deviation from our long-term model. Free cash flow was $2.1 billion on a trailing 12-month basis. Over the past 12 months, we have returned 100% of our free cash flow to shareholders through dividends and buybacks after debt repayments. In the first quarter, we repaid $100 million of debt, paid $178 million in dividends, and repurchased $227 million of our stock, or roughly 2.5 million shares.
On to guidance, which again, with the exception of revenue and Non-op expenses, is also on an adjusted basis, excluding items outlined in today's release. As a reminder, our guidance is based on sell-in or POA accounting. For context, during 2018, the change in channel inventory for the year was minimal as channel inventory increased in the first half and was reduced in the second half of the year. On average, over the past three years, channel inventory impacts annual revenue by about 1%, while quarterly variances could be and have been larger. Second quarter revenue is expected to be $1.5 billion ±$50 million. At the midpoint, we expect our B2B markets of industrial, automotive, and communications in the aggregate to increase slightly year-over-year, led by the communications market.
At the midpoint of guidance, we expect second quarter operating margin to be up slightly sequentially at 41.3%. Non-op expenses are expected to be basically flat sequentially, and we are planning for our tax rate to be towards the lower end of our previously guided range of 14%-16%. Based on these inputs, diluted EPS, excluding special items, is expected to be $1.30 ±$0.07. All in, it was a strong quarter to kick off fiscal 2019. While we are mindful of the economic uncertainty around us, I will echo Vince's optimism and say that we are extremely confident in the long-term growth opportunities for ADI. With that, I'll turn it over to Mike to start our Q&A.
Thanks, Prashanth. Okay, before we move to Q&A, one last reminder from IR. Our growth commentary will be on a normalized 13-week basis and on sell-in, unless we otherwise state it. Now, let's get to the Q&A. Please limit yourself to one question. After our initial response, we'll give you an opportunity for a follow-up question. Operator, can we have our first question, please?
For those participating by telephone dial-in, if you have a question, please press star and the number 1 on your phone. If your question has been answered and you wish to be removed from the queue, please press the pound key. If you are listening on speakerphone, please pick up the handset when asking your question. We'll pause for just a moment to compile the Q&A roster. Our first question comes from Ambrish Srivastava from BMO. Please go ahead, your line is open.
Good morning, Ambrish.
Hi. Good morning. I just wanted to put your guide with respect to what the peers have reported and guided to. Is it fair to assume that it's really the sell-in accounting change is one of the bigger factors in your Q-over-Q guide being different than your peers like Texas Instruments and Maxim?
No, Ambrish, I'm not sure why you'd conclude that. As I mentioned, we're not guiding point of sale anymore. We're on a sell-in basis. The guide is at the 1,541 midpoint of growth, excuse me, at the 1,500 midpoint, the guide should be on a year-over-year basis. If you were to take an assumption on flat inventory channel, you would still see a pretty strong sequential or year-over-year growth number there.
Yeah. Ambrish, just for some context there, as Prashanth said in his prepared remarks, we built inventory in the first half of the year in 2018, and this year we're not planning to build as much. That would actually be counter to what you said.
Okay. Thanks for the clarification.
In fact, Ambrish, if you take our outlook for the next quarter, 2Q, basically, our days in the channel are flat. It's certainly not an inventory build or a sell-in issue. We run the company on a sell-through basis, so I want to make that clear.
Do you have a follow-up, Ambrish?
I did. Thank you for the clarification. I just wanted to make sure I got that right. A bit longer term, Vince, on the 5G versus 4G, can you just help us understand what are the different dynamics architecture-wise and also the content gains that you expect? I know it's multi-flavor rollout, multi-year rollout, but how should we think about your positioning versus what it was in 4G? Thank you.
The 4G build-outs are continuing. I think that'll be the story for the next couple of years in terms of revenue contribution to ADI. Of course, 4G is being upgraded. We're adding Massive MIMO, for example, to direct the energy and improve spectral efficiency. I think we have a very high share at the present time in 4G and in the initial stages of 5G. What we're seeing right now is, as I said, the 4G phase continues. I think there are multiple years left where 4G will be the primary platform, but we're in the initial stages of 5G deployments. Really 5G has yet to materialize. When it comes to looking at the content, I would say these new generations of 4G create four times more content value for ADI.
Of course, when we move to 5G with the higher frequency systems, the microwave systems, and the densification of these Massive MIMO systems, there's another bump that we expect to get in content there. That's, by the way, before we add in the power management portfolio as well. As I've said before, for every dollar of analog content, of mixed signal content, there's at least a dollar of power. I'm pleased to say that we're at the early stages of attaching our LT power management portfolio to our 4 and 5G story as well.
Thank you, Ambrish. Our next caller.
Thank you. Our next question comes from Tore Svanberg from Stifel Nicolaus. Please go ahead, your line is open.
Good morning, Tore.
Yes. Thank you, and congratulations on the results.
Tore.
First question, I'm intrigued by the investment you're doing in healthcare. I assume that up until now, that's mainly sort of a B2B business, but there seems to be a lot of things going on in the consumer side. Should we expect ADI to participate both in B2B and in consumer when it comes to healthcare?
It's a good question. Well, most of what we're doing is, for example, in the more point of use, the clinical-grade vital signs monitoring, we're focusing very much on the higher end of the sensing and signal processing activity there. True to form with ADI, we're focused on really solving the toughest problems and enabling consumers to wear new healthcare sensing technologies to predict and help monitor wellness and indeed, recovery from health situations. I would say that the way to think about the story is that we're going to be focused largely on more B2B type activities.
Do you have a follow-up, Tore?
That's very helpful. Yes, thanks, Mike. Question for Prashanth. Prashanth, you said as you go through the manufacturing transition, your inventories are going to go up. Could you give us a sense for how much we're talking about here? Maybe you could give us a range on inventory days.
Yeah, sure. Thanks, Tore. As I mentioned in the prepared remarks, we had committed to some additional cost synergies relating to the shutdown of two sites that we acquired as part of the LTC acquisition. These shutdowns should generate an incremental $100 million of cost synergies, all of which is in cost of goods. To help us through that transition, we're going to be needing to put a little bit more inventory internally under our balance sheets. Hard to kind of pinpoint too much at this early stage, but we're estimating around five days, is what would be necessary to kind of carry us through the bridging the closure of those two facilities. Then once those facilities are up and running, we'll burn that off.
Thank you, Tori. Can we go to our next question, please?
Thank you for the call.
Thank you. Our next question comes from Stacy Rasgon from Bernstein Research. Your line is open.
Hi, guys. Thanks for taking my question. Back to the sell-in accounting. If I compare the new revenue profile with the old one, I note a considerable amount of revenue, particularly from industrial, that moved from the second half of 2018 to the first half. As you said, you built in the first and sold off in the second, and it shows up in the change. It was a lot of revenue. Was the magnitude of this drawdown bigger than what you would typically see in your ordinary patterns, just maybe given the stronger demand environment that we had in the first half?
I guess maybe just to put in other words, is the magnitude of the drawdown in the channel that we saw in the second half bigger than what we would see, and is the channel right now leaner than it would ordinarily be in a normal second half?
Thanks, Stacy. Let me break that into two pieces. First, if you think back to last year, it was around summer that we were one of the first companies to indicate that we were beginning to see some challenge in the factory automation space, given what was going on, particularly with China. Being proactive on that, we began to constrain the amount of inventory going into the channel in preparation of the uncertain times ahead. Yes, last year, we did see a more significant kind of a correction to inventory in the channel in the second half, given the macro environment. Now setting that up for this year, now that we are on sell-in accounting, that creates for some tough comps in the first half.
Again, as we move into the second half now, we'll also be lapping the softer business environment as well as the inventory channel correction. We do feel pretty good that the growth kind of gets better for industrial from here on forward.
Got it.
In terms of what's in the channel, today we're at about seven and a half weeks, and that's kind of right in the range that we guide to. As Vince mentioned, this is important, we focused running the business on a POS basis. The inventory in the channel for us is striking that balance in what is necessary to serve our customers, and it's less about kind of managing a particular revenue number. It is POS is what drives our decisions on what we put in the channel.
Thanks, Stacy. Do you have a follow-up?
I do. Thank you. I wanted to ask about OpEx. You were kind of flattish year-over-year in Q1. You're guiding kind of flattish in Q2. At the same time, you're talking about continually investing in new opportunities. I guess in particular, given the current situation, which does seem somewhat uncertain, how should we be thinking about OpEx growth, maybe relative to revenue growth as we go through the rest of the year?
Yeah, I would say that if you think historically, there's been a sort of a meaningful change in OpEx when we move from first quarter to second quarter. We told you in the last earnings call that that would not be the case this year, that our first quarter would be a little bit higher, and there was some one-timers that we talked about on the last call that were behind that. As we move through the balance of the year, we're expecting OpEx to be relatively flattish. The biggest driver on that, frankly, will continue to be variable compensation, which is designed to adjust the spend in line with the profit and the revenue growth. R&D today runs at about 18% of revenue, and we really consider that fully funded. We will work within that envelope to deliver the product development needs that are required.
Got it.
Thank you, Stacy.
Thank you very much.
Our next question, please.
Our next question comes from Harsh Kumar, Piper Jaffray. Your line is open.
Yeah. Hey, guys. Congratulations on great results, great guidance.
Thank you.
Gross margin came down. I assume that was just mixed w ith sort of B2B sort of hurting a little bit and consumer coming in stronger, how are you expecting to manage the factory or the fab, and therefore the utilization and gross margin in the coming few quarters?
Yeah. Well, in the first quarter we had lower utilization. We expect that utilization will increase in the second quarter, and through the rest of our fiscal year here. We'll, I think, keep a pretty high level of utilization. Also the 70.3% margins that we posted in the first quarter, as the mix towards industrial improves, we would expect also the gross margin to improve. I think utilization is in good shape across the company, and I think as well we are probably seeing what would be the lower point of the gross margin activity right now, and that will certainly improve as the industrial business improves.
I understand. Thank you.
Harsh, your comments are correct. Just one clarification there. It was growth in consumer, but it was also the growth in communications.
Sure.
Both of them were responsible for the end market mix. Do remember that this is the current quarter where we have the typical holiday shutdown, so utilization is due at the lowest point typically over the holiday season. With that, we'll go to our next caller.
You can follow up, Harsh. Thanks. Thanks, Vince. Quick question on the automotive. I got excited looking at your automotive number before realizing that there's a lot of sell-in stuff going on. Could you give us some color on how it held up if you back out the sell-in? If you're unwilling to do that, maybe talk about, you sort of laid out some targets, when you start to see some real growth, mid to high single-digit kind of numbers in automotive a year or even slightly more than that out. How do you feel about that number, the timeframe?
Great, Harsh. Thank you. I'm going to do the first part and let Vince take the second part. As I said in the prepared remarks, we moved some customers who were direct into the channel. As a result, there was a little bit of build and inventory associated with that. Normally, that would not be revenue for us. Remember that. The growth, if you want to think about what is the auto growth due to sell- in, that would've been a flat number. Auto growth in the quarter, as we think about it, natural demand was flattish, and we would say that for the first half, we kind of expect that to be flattish because the second quarter is going to have the corresponding offset from the inventory build that we had in the first quarter.
Channel inventory overall was kind of a minimal quarter-over-quarter. Auto was up, but the other markets were down. With that, let me let Vince talk to kind of longer term auto growth.
Yeah. We're expecting to, through 2018, the ADI specific, the legacy ADI portion of our business grew in the high single digits. The LT portion was in the lower single digits. Let me tell you a couple of things that we've been driving hard in our business. Our BMS, the battery management solutions that were legacy LTC, we've been growing that in double digits over the past three quarters or so. We're looking at the remainder of this year, the full 2019, as a double-digit growth year in that particular area. In fact, I think Prashanth indicated in his CapEx remarks that one of the reasons we're increasing CapEx is to enable us to put the equipment in place to get our products to market faster in that particular area, and to put the test coverage that we need as well in our back end.
I'm glad to say as well that we're winning incremental power sockets in the automotive sector. We're bringing power to new customers and we've seen just in this last quarter, in fact, our power portfolio grew in the automotive sector on a year-over-year basis. Legacy ADI, our infotainment business, continues to flourish, and we're winning many premium audio sockets and also attaching LT power again to everything that we do in the automotive area. We've just launched as well some very exciting high-resolution radar technology at the 77 gigahertz level. That's yet to come, but all the early indications are that we're starting to get traction there. I think we've many technologies and product areas that are well aligned with the critical themes in automotive around autonomy and electrification, and we now have the best portfolio in the industry to attack these opportunities.
Thank you, guys.
Thank you, Harsh. We go to our next caller, please.
Our next question's from Craig Hettenbach from Morgan Stanley. Your line is open.
Yes, thanks. The commentary on B2B up slightly, can you frame that, if you look at between comm, industrial, and automotive, just kind of a rough sense of how you expect those markets to trend year-over-year?
Sure. Hey, Craig. Comm will lead that growth, I would say. Industrial will be down year-over-year. Remember, last 2Q was a very strong quarter. I think we grew double digits sequentially in 2Q. That was kind of our peak industrial revenue a year ago. It was a tough comm, plus we also talked about the inventory change in the channel year-over-year. Automotive's going to be down year-over-year as we talked about the sell-in versus sell-through accounting. For auto, I would look at basically first half 2019 flattish versus
First half 2018.
That is flattish auto with vehicle unit sales down. We do recognize that that is a good accomplishment given the decline in vehicle production.
Comms will be another strong double-digit grower year-over-year. Pull that together, it increases slightly sequentially, and that's even with, I'll call, the offset of auto being a bit weaker because of the sell in accounting. If you took that away, B2B's up probably 2%-3% year-on-year.
Got it. Appreciate the color there. Vince, just a question, understanding there's some near-term cyclical pressure on the industrial market, can you talk through just design engagements with customers and things that, once you see some of the cyclical pressure ease, how that business could get back on track?
Well, it's a good question, Craig. We have an opportunity pipeline now, both on legacy ADI and LT legacy power products, in particular, that is at an all-time record high. We're busily converting that pipeline across the board. We've a broader and deeper position in the automation sector. We've extended our reach into electronic test and measurement, which complements our more vertically oriented memory test area quite well. The energy sector as well is doing well for the company, and on a year-over-year basis has been growing. All the things we do around sensing, measuring, interpreting, powering, and connecting, those technologies are getting used in more and more places in the industrial sector and in the aerospace and defense as well. We have a bigger portfolio. We've got more sales and application resource out there deeply engaging with our customers every day.
My sense is, if I were to put a target growth number on it, I think we have the opportunity to grow consistently in the mid to high single-digit area over the coming five, seven years.
Thank you, Craig.
Got it. Thanks.
Go to our next caller, please.
Our next question comes from Blayne Curtis, Barclays. Your line is open.
Hey, guys. This is Tom O'Malley. I'm for Blayne Curtis. Thanks for letting me ask the question. Just wanted to cover something you guys mentioned early in the call. I think you said that you moved $80 million from comm to consumer. Could you describe what you're moving over and kind of the growth profile of that chunk of revenue?
Sure, Tom. It mainly relates to prosumer business. Think of Polycoms and type of stuff for conference calls. Those type of things we moved from comms. The legacy for Linear were in communications. We put those into consumer, where ADI puts them. Prosumer typically is a GDP plus business growth wise.
It was customer mapping as we continued to finish the integration process with LTC.
Yeah. It's basically the non-portable stuff, and it looks and feels like a B2B business. Lots of customers and products and longer product life cycles when compared to the portable area. That's the change that's taking place.
Do you have a follow-up?
Yeah. I guess, just moving on more towards the comms side. You guys were talking about how 4G is really still strong and you guys are seeing the 4X content increase for Massive MIMO ahead of what people are really excited about in 5G. Can you kind of talk about the timing of that and how much legs you think are left of that before that 5G transition? Should that happen in the next couple of quarters?
Different people have different definitions of what constitutes 4G and 5G. I would say anything that is 4G with a Massive MIMO connected to it is 4.5G. Some people call that 5G. That's already in play, and that's one of the strongest growth drivers in our portfolio. I think that will be the story for at least another 12 to 18 months. I think it's going to be the very advanced 4G technologies that are beginning to utilize that bridge technology to 5G, which is Massive MIMO. I see true 5G being a 2021, 2022 introduction point. I think you'll see trials, of course, in the meantime of the classical microwave-driven 5G, but I think that's still a couple of years out.
Got it.
Thanks, Tom. Our next question, please.
Our next question is from William Stein, SunTrust. Your line is open.
Thanks for taking my questions. First, I'd like you to remind us about the capital allocation strategy for the company. There was a dividend increase. Also, taking a step back, you're now below two turns of net leverage. There was, for a time, a concern around leverage that's clearly behind us now. The last two acquisitions you did, Hittite and Linear, I think are proving very successful. In the context of the broader capital allocation strategy, I'm hoping you might comment on your appetite for M&A, which has maybe gone a little bit out of style in the last year or so, but I would suspect should still be on the top of ADI's mind given the success you've had.
The first call on our capital is to make sure that we invest to the fullest extent in building the greatest products and getting these products to market. That's the first call, we're investing. In fact, our OpEx is at a record level this year, our fixed OpEx. That's the first call on capital. We've committed to returning all our free cash flow after debt repayment to our shareholders. That's the track we're on. We're very happy with where we are right now as a company with the combination of ADI legacy, Hittite, and LT. We're still integrating LT and creating the leverage that we know we can create with that franchise. That's where we are right now. We've been doing some tuck-in acquisitions over the last 12 months.
We'll continue to do that, I think that's the way to think about it right now.
A follow-up, Will?
Yeah. I'm wondering if you can comment on the degree to which you believe the trade conflict has been hurting your business. I think it's clear there's been some effect, maybe not as much as others, because in particular of the comms strength. To what degree you see that already embedded in orders and what you think the future holds if there is a trade agreement in regards to your backlog and your trend of business. Thank you.
Great. Let me start and then let Vince add some more color. I just want to get to your question on orders. I know that's probably on many people's minds. January orders were stronger than December. That's not unusual for us, but it is a good sign, and that was strength in orders across all of our B2B markets. February has Chinese New Year, so there's a lot of noise in that. Going into the Chinese New Year, orders remain strong. While it is a noisy metric, we do look at it, our four-week book to bill is higher than both our eight-week and our 13-week. I do want to emphasize that is a very noisy metric, for whatever that's worth.
I think that's fine, Prashanth.
Okay. Go to our-
Thank you
Next caller, please.
Our next question comes from John Pitzer, Credit Suisse. Your line is open.
Yeah, good morning, guys. Thanks for letting me ask a question. Both of mine are relative to the comms business. I guess, Vince, when I adjust for the extra week and the change in accounting, the comms business was up north of 40% year-over-year in the January quarter, just excellent results. As you start to kind of lap the law of large numbers and hard compares, what do you think the sustainable growth rate in the comm business should be over a longer period of time? I guess if you look at the last several quarters, you've grown revenue on a quarterly basis by almost $100 million.
I'm wondering if you could help us break down the buckets of that growth between sort of Massive MIMO, 5G, Hittite, and maybe to follow on to Will's question, there is some concern out there that perhaps you're seeing a pull-in from some of your Chinese customers relative to concerns about their ability to get parts or tariffs. Are you seeing any sort of pull-ins in these numbers or not?
Well, I think there probably is some. I don't see anything unnatural in the numbers, incidentally, there is obviously some pull-in. There's anxiety around the current trade tension situation. Also remember, particularly in China, there are planned releases of advanced 4G systems and the trialing of 5G systems. That's taking place. I think our story is dominated primarily by the fact that we have much more content than we've ever had historically in these systems of ever-increasing complexity. Off the top of my head, John, it's hard to give you a breakdown of what the individual pieces are in terms of the contribution from legacy ADI, Linear, and Hittite. As I mentioned in the prepared remarks, and certainly in the Q&A here, we're beginning to see the early stages of LTC power being adopted.
The portfolio today is largely dominated by legacy ADI mixed signal. We're at the early stages of adoption of LT, and Hittite is a tremendous source of strength in the higher frequency products that connect to the antenna. All that said, my expectation is with the content and with the expectations of our customers, that that business will grow at double digits for the next several years.
Thanks, John. In the interest of time-
Vince.
Go ahead, John.
I'm happy to have you started. We can take it offline. I was going to say on the 4X content story, what percentage of your comms revenue does that content story cover? Or are you really kind of guiding that at some point in the future, we can go back and look at a quarterly revenue run rate that's kind of 4X what it was maybe two or three years ago?
At a high level, John, I'd say 2018 was really about share gains on traditional 4G. Doesn't really include that 4X content. That 4X content comment relates to as you move to more radios and Massive MIMO, the radios go up by 8X, the content opportunity for us is up to 4X, and we're adding linear power onto that. That's really in the future. At a high level, 2018 was about 4G share gains, 2019 and beyond will be about moving to Massive MIMO and the 4X content.
Very helpful. Thanks, guys.
Cheryl, can we have our last question, please?
Thank you. Our last question comes from CJ Muse, Evercore. Your line is open.
Yeah, good morning. Thank you for squeezing me in. I guess to follow up on a handful of the previous questions, your industrial business definitely proved more resilient than I think most of us were thinking coming in. Just curious, how much of that do you think was a result of moving to sell-in versus your particular portfolio?
I would say none of that was really due to sell-in. Remember that industrial business largely goes through the channel. We have a very tough compare in the first half because in 2018, we built inventory in the channel, so that is primarily industrial business. As I mentioned in my prepared remarks, we saw growth in aerospace, defense, electronic test and measurement, which more than helped to offset the headwind we had in automation and memory test, which we've signaled some time ago. The book to bill is above parity, so a little bit lower than normal, but that's already reflected in our outlook. I mentioned orders have gotten better, so I think Vince made the comment, we think we continue to grow from here.
That's helpful. I guess as a quick follow-up, I guess more limited commentary on the consumer side, so I figured we'd start there. How are you thinking about seasonality and kind of given what you know today design win-wise, what that business can look like through calendar 2019?
Yeah. I think 2Q is usually the low point of the year for that business, just given the demand there. You think about it on last call, Vince highlighted that we think consumer will be down 10%-20% in fiscal 2019, and that's kind of what we're sticking to for outlook. Okay.
Helpful. Thank you.
Thanks, CJ. Thank you everyone for joining us this morning. A copy of the transcript will be available on our website, and all available reconciliations and additional information can also be found at our Core Results section of our investor relations site at investor.analog.com. Thanks again for joining us and your continued interest in Analog Devices.
This concludes today's Analog Devices conference call. You may now disconnect.