Good day, ladies and gentlemen, and welcome to the American Financial Group Fourth Quarter 2018 Results Conference Call. At this time, all participants are in a listen-only mode. If anyone should require assistance during the call, please press star then zero on your touch-tone telephone to reach an operator. Later, we will conduct a question-and-answer session, and instructions will follow at that time. As a reminder, today's conference may be recorded. I'd now like to introduce your host for today's conference, Ms. Diane Weidner, Assistant Vice President, Investor Relations. Ma'am, please go ahead.
Thank you, Liz. Good morning, welcome to American Financial Group's fourth quarter 2018 earnings results conference call. I am joined this morning by Carl Lindner III and Craig Lindner, Co-CEOs of American Financial Group, and Jeff Consolino, AFG's CFO. Our press release, investor supplement, and webcast presentation are posted on AFG's website. These materials will be referenced during portions of the call today. Before I turn the discussion over to Carl, I would like to draw your attention to the notes on slide two of our webcast. Certain statements made during this call may be considered forward-looking statements as defined under the Private Securities Litigation Reform Act of 1995. These statements are not guarantees of future performance. Investors should consider the risks and uncertainties that could cause actual results and/or financial conditions to differ materially from these statements.
A detailed description of these risks and uncertainties can be found on AFG's Securities and Exchange Commission filings, which are also available on our website. We may include references to core net operating earnings, a non-GAAP financial measure, in our remarks or responses to questions. A reconciliation of net earnings attributable to shareholders to core net operating earnings is included in our earnings release. If you are reading a transcript of this call, please note that it may not be authorized or reviewed for accuracy. Thus, it may contain factual or transcription errors that could materially alter the intent or meaning of our statement. Now, I am pleased to turn the call over to Carl Lindner III to discuss our results.
Good morning. We released our 2018 fourth quarter and full year results yesterday afternoon. If you turn to slides three and four of the webcast slides for an overview. Craig and I were pleased to report record AFG core operating earnings of $8.40 per share for the full year of 2018, up 28% from last year, and generating a core return on equity in excess of 15%. Returning capital to our shareholders is an important component of our capital management strategy and reflects our strong financial position and our confidence in AFG's financial future. We paid $397 million in dividends during the year, representing $130 million in regular common stock dividends and $267 million in special dividends. Our quarterly dividend was increased by 14% to an annual rate of $1.60 per share beginning in October of 2018.
AFG's five-year total shareholder return, representing growth in share price plus dividends, was approximately 88%, exceeding the total return performance of the S&P 500, S&P Property & Casualty Insurance Index, and the S&P 500 Life & Health Insurance Index over that same period. Turning to slide four, fourth quarter core net operating earnings were $1.75 per share compared to $2.20 per share in the year-ago quarter. The significant downturn in the financial markets in the fourth quarter tempered results in our annuity segment, and profitability in our Property and Casualty segment was lower year-over-year. These results were partially offset by the benefit of a lower corporate tax rate. Fourth quarter 2018 annualized core operating return on equity was 12.6%. A net loss of $0.33 per diluted share in the fourth quarter included $2.08 per share in realized losses on securities.
Accounting rules require that all equity securities are reported at fair value, so it's important to note that $2 per share of this amount related to holding losses on securities that AFG continued to own at December 31, 2018. Craig will discuss this in more detail later in the call. Craig and I thank God, our talented management team, and our great employees for their work in helping us to navigate the challenges of market volatility and a heightened level of natural disasters across the industry. We have established initial 2019 core operating earnings guidance for AFG in the range of $8.35-$8.85 per share. Craig and I will discuss our guidance for each segment of our business in more detail later in the call. I'd like to turn our focus to our Property and Casualty operations.
Please turn to slides five and six of the webcast, which include an overview of fourth quarter results. As you'll see on slide five, gross and net written premiums in our Specialty Property and Casualty insurance operations grew by 3% and 4% respectively. A change in the timing of the renewal of two large transportation accounts from the third to fourth quarter impacted reported growth in the quarter. If you exclude the timing of those policy renewals overall, Specialty Property and Casualty gross and net written premiums grew by 1% and 2% respectively from the year-ago quarter. Property and Casualty operating earnings in the fourth quarter were 8% lower year-over-year, primarily related to higher catastrophes, which added three points to the combined ratio in the fourth quarter compared to 0.6 points in the prior year period.
Overall renewal pricing in our Specialty Property and Casualty Group was up 2% during the fourth quarter and above our overall loss ratio trend, which is about 1.5%. Loss cost trends remain stable, and we're keeping an eye on inflation and interest rates. Excluding our workers' comp businesses, overall renewal pricing was up approximately 4% during the quarter. We're getting rate increases in the businesses where we need them to achieve our targeted returns. If you turn to slide six to review a few highlights from each of our Specialty Property and Casualty groups. Property and Transportation Group reported an underwriting profit of $64 million in the fourth quarter of 2018 compared to $84 million in the comparable prior year period. Higher underwriting profits in our transportation, property and inland marine, and ocean marine businesses were more than offset.
Our crop insurance operations reported strong profitability during the 2018 fourth quarter, albeit at lower levels than the very strong results reported in the prior year fourth quarter. Strong yields in the Eastern Corn Belt helped to mitigate the impact of commodity price declines. Catastrophe losses for this group had a favorable impact of $2 million in the fourth quarter of 2018, compared to a favorable impact of $3 million in the 2017 fourth quarter, with catastrophe losses reported from the previous quarter developing favorably in the fourth quarter of both those years. Fourth quarter 2018 gross and net written premiums in this group were 4% and 6% higher, respectively, than the comparable prior year period. The increase was largely the result of a change in the timing of the renewal of two large accounts mentioned previously.
Excluding the impact of the timing of these policy renewals, both gross and net written premiums in this group were up about 1% year-over-year. Lower year-over-year premiums in our crop insurance business and underwriting actions on underperforming accounts in our Singapore branch both tempered fourth quarter premiums. Our overall renewal rates in this group increased 3% on average in both the 2018 fourth quarter and for the full year. Specialty Casualty Group reported an underwriting profit of $22 million in the fourth quarter compared to $58 million in the comparable 2017 period. Lower year-over-year underwriting profit within Neon was the primary driver of these results, specifically higher 2018 catastrophe losses and lower year-over-year favorable reserve development due to the fourth quarter 2017 Neon reinsurance to close transaction. Lower profitability in our workers' comp businesses contributed to a lesser extent.
Despite lower year-over-year profits in our workers' comp operations, these businesses achieved excellent underwriting margins in the fourth quarter. Higher underwriting profit in our excess and surplus lines and targeted markets partially offset these results. Last quarter, we shared our plans to acquire ABA Insurance Services, a market leading provider of D&O and other complementary insurance solutions for banks, small businesses, and nonprofit organizations, with a long track record of underwriting success and profitability. We are pleased that the transaction closed at the end of November, and we welcome this business to the AFG family. Results for this business for the month of December are reported within the Specialty Casualty Group. Catastrophe losses for this group were $28 million in the fourth quarter of 2018 and $18 million in the comparable 2017 period.
Gross and net written premiums increased 6% and 5% respectively for the fourth quarter of 2018 when compared to the same prior year period. Higher year-over-year premiums within Neon resulting from the growth of its portfolio and targeted classes of business, along with the growth in several other businesses and the addition of ABA Insurance Services, were partially offset by lower premiums in our workers' comp businesses. Renewal pricing for this group was flat in the fourth quarter and was down approximately 1% overall for the year. Excluding our workers' comp businesses, renewal rates in this group were up approximately 4% in the fourth quarter and 3% for the year. The Specialty Financial Group reported an underwriting profit of $20 million in the fourth quarter of 2018 compared to $19 million in the fourth quarter of 2017.
Lower year-over-year profitability in our financial institutions business, primarily the result of higher catastrophe losses, was partially offset by higher profitability within our fidelity crime and our equipment leasing businesses and higher favorable reserve development in runoff businesses. All businesses in this group achieved excellent underwriting margins. Gross and net written premiums declined by 12% and 9% respectively in the 2018 fourth quarter when compared to the same 2017 period, primarily due to the timing of several new accounts in our lending and leasing businesses in the prior year. Renewal pricing in this group was up 5% during the fourth quarter and for the full year of 2018. Please turn to slide seven for a summary view of our 2019 outlook for the Specialty Property and Casualty operations. We expect the 2019 combined ratio for the Specialty Property and Casualty group overall between 92% and 94%.
The Specialty Property and Casualty group's calendar year GAAP combined ratio has been between 92% and 94% in each of the five preceding years. Our expectations remain consistent with our past results. Net written premiums are expected to be flat to up 3% for the year. Looking at each segment, we estimate a combined ratio in the range of 92%-96% in our Property and Transportation group. Net written premiums in this group are estimated to be up 3%-7% for the year. Our guidance assumes a normal level of crop earnings. We expect our Specialty Casualty group to produce a combined ratio in the range of 91%-95%. Net written premiums are expected to be down 2% to up 2%.
Net written premium guidance includes low in our workers' comp businesses, these items will be offset by a full year of premiums from ABA Insurance Services. Specialty Financial Group combined ratio is expected to be in the range of 86%-90%. Our projection for growth in net written premiums is in the range of 3%-7%. We expect modest growth across all the businesses in this group and continued strong results. Net investment income is expected to be flat to up 4% year-over-year. As noted earlier, 2018 results were exceptionally strong, primarily due to the strong performance of limited partnerships and similar investments, which we don't expect to continue. We expect overall P&C renewal pricing in 2019 to be flat to up 2%. The discussion over to Craig to review the results in our Annuity segment and AFG's investment performance.
Thank you, Carl. I'll start with a review of our annuity results for the fourth quarter beginning on slide eight. Statutory annuity premiums were $1.48 billion in the fourth quarter of 2018, an increase of 63% from the prior year period, establishing a new record for premiums in a quarter. Significant growth in sales of FIAs in the broker-dealer and retail markets, as well as higher year-over-year sales in our financial institutions channel contributed to these record results. I'm also pleased to report record sales of $5.4 billion for the full year, which we achieved while maintaining pricing discipline. Production at our retail and broker-dealer markets continues to be particularly strong due to the launch of several new products and our efforts to expand our distribution within both of these channels.
Turning to annuity results, pretax annuity earnings were $20 million in the fourth quarter of 2018, compared to $97 million in the fourth quarter of 2017. Pretax annuity earnings before fair value accounting for fixed-indexed annuities and unlocking were $71 million in the fourth quarter of 2018, down 36% from the prior year period. The fourth quarter decrease in the S&P 500 had an unfavorable impact of $57 million on pretax annuity earnings, compared to a favorable impact of $16 million in the fourth quarter of 2017. I review this in more detail as we discuss slides nine and 10. On slide nine, you'll find the components of pretax earnings before fair value accounting for FIAs and unlocking. The S&P 500 index decreased 14% in the fourth quarter of 2018.
This poor stock market performance adversely impacted pretax annuity earnings before fair value accounting for FIAs, particularly FIAs with guaranteed benefits by $30 million, or $0.26 per share. If the stock market performance reverts back to our long-term expectation over the life of these policies, a substantial portion of this unfavorable impact would be expected to reverse. The components of fair value accounting for FIAs are shown on slide 10. Under GAAP rules, a portion of the reserves for fixed-indexed annuities is considered to be an embedded derivative and is recorded at fair value based on the estimated present value of certain expected future cash flows. Assumptions used in calculating this fair value include projected interest rates, option costs, surrenders, withdrawals, and mortality. Variances from these assumptions, as well as changes in the stock market, will generally result in a change in fair value.
Items such as changes in interest rates and the performance of the stock market are not economic in nature for the current reporting period, but rather impact the timing of reported results. The impact of fair value accounting for fixed-indexed annuities includes an ongoing expense for annuity interest accreted on the FIA embedded derivative reserve. The amount of interest accreted in any period is generally based on the size of the embedded derivative and current interest rates. We expect both the size of the embedded derivative and interest rates to rise, resulting in continued increases in interest on the embedded derivative liability. In the fourth quarter of 2018, the 14% decline in the S&P 500 index contributed to a significant unfavorable fair value accounting impact of $27 million, or $0.24 per share for the quarter.
The majority of this impact is non-economic and is expected to reverse over time, even in the absence of a stock market recovery. By comparison, in the fourth quarter of 2017, the benefit of a higher stock market resulted in a $9 million favorable impact. The fourth quarter of both years reflected lower than expected changes in interest rates, resulting in negative non-economic impacts on earnings. I'm pleased that our annuity segment earned an after-tax operating return on equity in excess of 12% for the full year of 2018, despite the impact of the poor stock market performance in the fourth quarter and the year. For additional analysis of fair value accounting, see our quarterly investor supplement, which is posted on AFG's website. Turning to slide 11, you'll see that AFG's quarterly average annuity investments and reserves grew approximately 12% and 10% respectively year-over-year.
The benefit of this growth was partially offset by the runoff of higher yielding investments. Please turn to slide 12 for a summary of the 2019 outlook for the annuity segment. We expect annuity earnings before the impact of fair value accounting for FIAs and unlocking to be in the range of $435 million-$465 million. We estimate that pre-tax annuity earnings will be in the range of $365 million-$425 million. Finally, we expect that our 2019 full year annuity premiums will be down slightly from the $5.4 billion reported in 2018. Although our guidance reflects the introduction of new products and opportunities to grow our business in the registered indexed advisor and broker-dealer markets, we continue to emphasize earning the appropriate return on our new sales, regardless of the competitive environment.
Additional information on the annuity segment earnings, premiums, investments, and reserves can be found in AFG's quarterly investor supplement posted on our website. Please turn to slide 13 for a few highlights regarding our $48.5 billion investment portfolio. AFG reported fourth quarter 2018 net realized losses on securities of $188 million after tax and after deferred acquisition costs. This compares to net realized gains on securities of $4 million in the fourth quarter of 2017. Approximately $179 million of the realized losses recorded in the fourth quarter of 2018 pertained to securities that AFG continued to hold at December 31, 2018. Through January 29, 2019, the equity securities held at December 31, 2018, have increased in value by approximately $100 million after tax and after DAC, effectively reversing more than half of the fourth quarter loss.
As of December 31, 2018, net unrealized gains on fixed maturities were $83 million after tax and after DAC. As you'll see on slide 14, our portfolio continues to be high quality, with 91% of our fixed maturity portfolio rated investment grade and 98% with an NAIC rating of 1 or 2, its highest two categories. We've provided additional detailed information on the various segments of our investment portfolio in the quarterly investor supplement on our website. I'll now turn the discussion over to Jeff, who will wrap up our comments with an overview of our consolidated fourth quarter 2018 results and share a few comments about capital and liquidity.
Thank you, Craig. Slide 15 summarizes AFG's fourth quarter consolidated core operating earnings results. AFG reported core EPS of $1.75 in Q4 2018. Core net operating earnings in the quarter were $159 million. The year-over-year decrease in core earnings in the 2018 fourth quarter from the record levels in 2017's fourth quarter was primarily the result of lower operating earnings in our insurance businesses, which Carl and Craig have detailed for you earlier in the call. This is partially offset by lower interest in other corporate expenses and a lower effective tax rate. Interest in other corporate expenses had a favorable variance of $18 million. Parent company interest expense decreased by $4 million year-over-year as a result of our 2017 debt refinancings.
The impact of lower expenses related to certain employee benefit plans was the primary driver of a $14 million reduction in other expenses year-over-year. As a reminder, starting in Q1 of 2018, this line also includes income and expenses related to AFG's previously reported runoff lines of business. The impact of fair value accounting for FIAs is a notable item on this page 15, and we've further enhanced our investor supplement for those of you who are making estimates in the quarter for the impact of fair value accounting. This appears in the supplement as a new page 14.
A general rule of thumb for a parallel shift in rates, each 10 basis point change in the average five and 15-year corporate A2 rate as compared to the expected change indicated by the forward curve at the outset of each month impacts fair value accounting by $7 million pre-tax. Another rule of thumb is that the impact of a 1% change in the S&P 500 impacts fair value accounting by approximately $2 million pre-tax. Applying these rules of thumb would allow our user to estimate those components of the fair value accounting adjustments attributable to changes in interest rates and changes in the stock market. In addition, we've also added a new supplement page 13, which shows you the impact on annuity earnings of certain other variable items.
Note there's an additional 1% stock market change rule of thumb that impacts annuity earnings before fair value accounting by an additional $1 million to $2 million, bringing the total estimated rule of thumb impact on overall annuity earnings of a 1% change in the S&P 500 to a combined $3 million to $4 million, a portion before fair value accounting and a portion included within fair value accounting. We've also added a new page 26 to the supplement, which analyzes investments marked to market through investment income and investments accounted for using the equity method.
For example, fourth quarter 2018 Property and Casualty net investment income of $115 million exceeded our expectations due to the 13.8% annualized yield recorded from these investments in the quarter, compared to our normalized assumption of 8%-10% for these assets, which consist primarily of investments in limited partnerships and similar investments that invest in private equity, real estate, and other opportunities, and which are accounted for using the equity method. Slide 16 provides a reconciliation of core net operating earnings to net earnings. AFG adopted ASU 2016-01, effective January 1, 2018, which requires holding gains or losses on equity securities to be recognized in net earnings. The impact to our income statement will vary each quarter depending on the performance of the securities held in our equity portfolio. In the fourth quarter of 2018, AFG recognized $188 million or $2.08 per share in net after-tax realized losses.
Turning to slide 17, AFG's adjusted book value per share was $54.86 as of December 31st, 2018. Growth in book value per share plus dividends was a strong 10.8% for the full year 2018. We returned $170 million to our shareholders in the fourth quarter with the payment of our regular quarterly dividend and the payment of a $1.50 per share special dividend. Share repurchases totaled $6 million in the quarter. Parent cash was $160 million at the end of the fourth quarter. We maintain sufficient capital in our insurance businesses to meet our commitments to the rating agencies. Our excess capital stood at approximately $690 million at December 31st, 2018. Remember, we plan to hold approximately $200 million-$300 million in dry powder to maintain flexibility for opportunities as they arise. Our management team reviews all opportunities for deployment of capital on a regular basis.
To wrap up, page 18 shows a single-page presentation of our updated 2019 core earnings guidance. Our guidance assumes an effective tax rate of approximately 20% on core pre-tax operating earnings. AFG's expected 2019 core operating results exclude non-core items such as realized gains and losses and other significant items that may not be indicative of ongoing operations. We'd like to open the lines for any questions.
Ladies and gentlemen, if you'd like to ask a question at this time, please press the star then the number one key on your touchtone telephone. If your question has been answered or you wish to remove yourself from the queue, you may do so by pressing the pound key. Again, if you'd like to ask a question at this time, that's star and one. Our first question comes from the line of Greg Peters with Raymond James. Your line is now open.
Thank you. Good afternoon. Thanks for taking my questions. Had a couple questions for you on the property and casualty business and a question on the annuities. On property and casualty, a number of companies have reported results so far for the fourth quarter, and commercial auto seems to be quite topical. Whether it's Travelers, Old Republic, or others have talked about achieving additional rate increases and continuing rate inadequacy in that line. I thought maybe you could spend a minute and talk about your experience in commercial auto.
Hi, Greg. This is Carl. Happy to do that. Overall, we're very pleased with the performance of our commercial auto business and our transportation part of our business. National Interstate and Great American Trucking are achieving our combined ratio targets and our return targets in that. We've been at it a while. 2018 was our seventh year of rate increase, and we're continuing to take rate. Hope that answers your question.
Okay. I know Jeff answered or addressed this a little bit in the third quarter call. It's worth coming back and revisiting. Looking at some of the disclosures in the supplements, the expense ratios for the property, transportation, casualty, and specialty businesses are all up if you look at it year-over-year. I'm wondering if 2018, the expense ratio levels reported for the full year 2018 represents sort of the new normal going forward.
Hey, Greg. This is Jeff. Thanks for the question. As it relates to the expense ratio, if you look at it in an annual basis, there's a lot that goes into that that is related to business mix. I think we talked about it last quarter. Property and Transportation, the crop business was down slightly, and crop carries an inherently lower expense ratio. As that proportion of P&C represented by crop diminishes, the expense ratio tends to drift upwards. In the Specialty Casualty segment, Neon has grown, and Neon, by virtue of operating at Lloyd's, has a higher expense ratio than the rest of our Specialty Casualty business. It tends to cause that expense ratio to rise. Summit has performed very well in the Specialty Casualty segment.
In the last quarter, we talked about how that means that policyholder dividends, which we book in the expense ratio would tend to rise, and also some of the employee compensation accruals there as well. Finally, in financial institutions, that's generally stable. It really depends on what the underlying loss ratio is because for Specialty Financial, do tend to move in opposite directions. In terms of going forward, we certainly projected our business mix. As we look at it that will migrate, I think you're pretty much on solid ground if you stick at that level. As our business mix evolves, that then certainly could cause things to change.
Great. Thank you for that color. Craig, real quickly, in your commentary and guidance, I would like to focus on just the sales results. It looked like you reported nice gains in most of the channels for the full year except for the financial institutions channel. I was wondering if you could provide us some color about what is going on in that specific channel. I recognize it was up quarter-over-quarter, but for the full year it was down. Then use that as sort of a launching pad to give us some more perspective on why you are projecting sales to be flat to down slightly for 2019.
Sure, Greg. There clearly is more competition in the financial institutions channel as a result of a couple of things. A couple of the very large variable annuity players have now focused on indexed annuities and have recently entered that market and are competing against us in some of the banks where we sell FIAs. I am a little bit surprised some of the banks have allowed a few lower-rated companies that price very aggressively to sell through their channel. I was hoping that that would not happen, but there are some lower-rated companies that are now selling in that bank channel. I think it is the combination of those two things that is resulting in a bit more of a competitive environment in that channel. In terms of the overall guidance of down slightly, it is a couple of things. Mainly, we are comparing it to a fantastic premium year.
Last year, the premiums were well beyond our expectation or original guidance. We benefited last year from a couple of things. We are a bit quicker to change pricing on our annuities than many of our competitors. We are very disciplined in maintaining pricing that results in what we consider to be appropriate profitability, appropriate returns. In a rising interest rate environment, like we experienced last year, we are quicker to make changes, which helps us competitively. That clearly helped premiums last year. Who knows what interest rates are going to do this year? We are starting out with a slight decline in rates. We are not assuming we are going to benefit again from rates that are increasing at a reasonable rate. The main thing, Greg, is we are comparing to a year of extremely strong premiums. Look, I hope that we are up again this year. Time will tell.
Anyway, we thought it was prudent to assume that premiums are going to be down a little bit.
I understand. It makes sense. With your discussion around increased competition, particularly in the financial institutions channel, and I guess you noted it was maybe broader based in some of the other channels as well, and you mentioned in the commentary about your 12% return on equity. Clearly you're focused on sustaining that. Do you think there's going to be longer-term structural downward pressure on returns on capital in this business as a result of the competition?
I don't think so, Greg. I don't think so. I know we're going to be disciplined, and we expect to continue to produce a very healthy level of premiums at the appropriate rate of return.
Fair enough. Thanks for your answers.
Our next question comes from Christopher Campbell with KBW. Your line is now open.
Hi. Good afternoon, gentlemen. I guess my first question is just on the guidance. You're finishing the year about $8.40, the midpoint of the new guidance is only about 2% higher year-over-year. I guess, just what's kind of limiting your ability to grow this more in 2019?
Chris, this is Craig. One of the things that is baked into guidance is we're assuming a more normal return year on assets that are mark-to-market. Last year was extraordinarily strong, we're assuming a more normal 8%-9% return on the significant assets that are mark-to-market.
Got it. Just, I guess, this is another one for you, Craig, is just, I guess what interest rate and spread assumptions do you have baked into the current guidance?
In the current guidance, we are assuming that there's a moderate rise in corporate A2 rates, a rise of 15-25 basis points from year-end levels which was in line with the forward curve when we put guidance in place. We are assuming a 7% increase in the S&P 500, 4% in the first quarter, then 1% in each subsequent quarter. As I just mentioned, we're assuming returns on private equity and other investments that are mark-to-market of 8%-9% versus a much higher number in 2018.
Okay, great. That's very helpful. Then I guess on the P&C side, I don't know if it's Jeff or Carl, but I guess what pricing trends are you guys seeing at Lloyd's?
First Chris, welcome to our conference call. Great to have you. Pricing trends at Lloyd's are moving upwards. That's by design. Lloyd's has gone through a process designed to constrict capacity, and in many cases has caused syndicates to exit various lines of business. In the fourth quarter, we saw a rate increase across our book of business of 8% annual, which we think is favorable. The market as a whole, though, needs to get more rate, so we look forward to seeing appropriate rate increases continue to come through at Lloyd's. Chris, if I can double back on your guidance question. Two observations. I think you phrased the question as what's limiting our ability to grow. We certainly have ample capital to grow our business. I don't really think of this as a growth limitation per se.
Bear in mind, I think you were focused on a point within a $0.50 range that we issued for the upcoming year. At this point in time, we assume things like a normal crop year, which you need to have a range of some scale to show how that goes. I think that also it's wise at this point to assume a normal catastrophe year for the business, which for us has tended to be about one and a half points on the combined ratio over a very long period of time. Then, given all the discussion we've had about fair value accounting, when you look at the guidance range that the annuity segment has promulgated in the deck, it's wise to have a range for that. We'll be able to be more specific about the range in subsequent quarters as we usually are.
Right now, I would just point you to the fact that you can see in that range some upside. Overall though, one last observation, if we come in at the midpoint of that guidance, that's a 15.5% after-tax return on capital, which is consistent with this year. We think that's very competitive in our industry and in our peer group.
Got it. That's very helpful. Just one final question on the share repurchases. Not a ton in the quarter, but you guys are buying back about mid $93, which would be about a 1.7 multiple. Is it a fair assumption that the price isn't much different now, that we should think about modeling buybacks at these levels?
This is Craig, Chris. What I would say is we are always evaluating different alternatives to put our excess capital to work. I think with purchases indicated that we thought that was a pretty attractive value to repurchase shares. Having said that, we're always going to be comparing that to other opportunities to grow the business, to make acquisitions and so forth.
Okay, great. Well, thanks for all the answers. Best of luck in 2019.
Our next question comes from Jay Cohen with Bank of America. Your line is now open.
Thank you. Almost all of my questions were answered. The only other thing I had was on the other earnings. I guess you talked about lower employee benefit cost. I guess my assumption is that that was a temporary thing. We shouldn't assume that the number we saw in the fourth quarter continues going forward?
Hi, Jay. This is Jeff. You're absolutely correct. When we look at that slide, the interest piece, that's the new run rate after the debt refinancings. That's where we'll be. In terms of when you look at the supplement, the previous quarter is more representative of a run rate than the fourth quarter. We'd expect that to run somewhere in the $25 million to $28 million range per quarter.
Got it. I guess one other question, and that is, when the U.S. corporate tax rate was reduced, there was all kinds of theories of how that might affect the business. Are you seeing any repercussions from the corporate tax rate being reduced as far as the competitive environment goes?
This is Carl. I don't believe so. Again, when you look at our fourth quarter, we were able to take rate actually up 2%. We're maintaining the margins at pretty substantial returns on equity overall and within the property and casualty group. If anything, those competitors that lost the low tax advantage maybe have had to price a little bit forward in order to achieve even the same returns.
Yeah, I had the same observation. It's interesting. Again, a lot of theories going into this, but we'll see if things change. Thanks for that insight. That's helpful.
Our next question comes from Paul Newsome with Sandler O'Neill. Your line is now open.
I think this is a little bit of a follow-up to the annuity returns on the investment portfolio. If I look at the ratio of net investment income to your annuity benefits, it looks like it peaked in the third quarter and then sort of consistently fallen. I'm sort of scratching my head a little bit just because if I look at some other folks, it's been more consistently up as people have rolled over into higher interest rates. Is that reflective of this sort of investment partnership income that you were talking about, or are there other things in there? Are we kind of today at the run rate, or is that run rate lower than it would normally be?
Paul, this is Craig. I'm going to have to take a look at that. Obviously, assets are growing at a pretty good clip
Reserves are growing at a pretty good clip. I'm going to have to take a look at that because I think the trend in investment income is going to be up. If you're looking quarter by quarter, you can get some swings as a result of different returns on mark-to-market assets. For the annuity group, the returns, although they were still decent returns, they were lower in the fourth quarter than the previous three quarters. We give that in a schedule in the supplement. Let me see if I have that here.
I'm kind of looking at page 16 of the supplement.
Yeah. Go to page 26 of the supplement for a minute, you'll see that in the fourth quarter, the investments accounted for by using the equity method returned 7.1% in the quarter versus 12.4% for the full year. Higher numbers in previous quarters this year. Let me go to the schedule that you were talking about and see if I can figure it out.
I guess that would match up more or less.
Yeah, Paul, this is Jeff.
The schedule on 16.
Paul, this is Jeff. I have to say, it's always great to get somebody else's perspective because what you calculate as a ratio, we look at arithmetically not as a division. That page 16 presents investment income as a % of investments and interest credited. What you look at as ratio, we look at net spread. You're right, that ratio or that spread would have crested in previous quarters of 2018. When you look at the interest credited, it's fairly stable. All of the changes in that ratio or in that spread are driven by what Craig just went through, which is the changes underlying in investment income. I think we've come to a conclusion on what you were looking at. Hopefully that disclosure on the mark-to-market assets helps you look a little bit deeper as to what's going on there.
Paul, if you look year-to-year, look at the comparison over on the right-hand side. It's a 473 in 2018 versus a 463 in 2017.
Okay. No, this is helpful. Thank you very much.
No problem.
Our next question comes from DeForest Hinman with Walthausen. Your line is now open.
Hi. Thanks for taking the question. You guys have been at this for a very long time on the annuity side. Big-picture question. Flat yield curve, doesn't happen often, but in the course of your careers, probably happened a couple times. Can you kind of fill us all in terms of how that might impact behavior in the annuity business from a new product development, surrender charges, surrender fees? I mean, why don't we start there?
Yeah. Amit, this is Craig. First of all, I'm sorry, DeForest. This is Craig. First of all, our products generally are quite a bit shorter than many of our competitors. Our commissions that we pay are somewhat lower. I think on average, they're a point and a half lower than the average commission paid by our competitors. In terms of change in product development, I don't know that there's a big change. There appears to be demand for even shorter products. We just rolled out a three-year product that we think is going to sell pretty well. I don't know that there's any huge change in product design, frankly, as a result of the current flattening of the yield curve.
Okay. Maybe just a different way of asking the same question. You guys have your own outlook. Once again, I might look at it a little bit differently than you, but I'd love to hear your opinion. Short-term CD markets, brokered CDs are seeing some pretty attractive yields. Are we playing in a different space? Are we going to be competing with that same money when it comes to bank partners or some of our broker relationships where they maybe have more options than they've had in the past? Is that factored into that outlook for annuity volumes into 2019?
Yes. It is factored into our outlook and our guidance.
Okay. Thank you.
As a reminder, ladies and gentlemen, if you'd like to ask a question at this time, that's star then one. Our next question comes from the line of Amit Kumar with Buckingham Research. Your line is now open.
Thanks. Good afternoon. Just I guess two quick follow-ups. I know we're coming up on the hour. The first question goes back to the comment I think you made on the Singapore branch. I think you mentioned some re-underwriting actions, et cetera. I just wanted to get some more color around it, and how should we think about that piece going forward? That's question one.
This is Carl, Amit. Our Singapore branch is a startup unit. It's in its early stages. We probably built the unit a little bit more rapidly and broader than we wanted initially, and we've had to backtrack some, which has caused the premiums to decline this past year, and as we've taken some actions both pricing and underwriting-wise in that. Our focus is on big improvement in that business going forward. From an expense ratio standpoint, it is only a couple of years old, so it takes you a while to get where you want when you have a startup business like that. We're working on it.
Okay, that's helpful. The second question I had was, I guess this is somewhat of beating a dead horse, going back to the discussion on commercial auto. I was wondering if you could just revisit or maybe expand on the trend difference between smaller commercial and the long-haul piece of it.
Amit, this is Jeff. Are you asking about the differential and competitive dynamics?
For you, both would be helpful.
National Interstate and Great American Trucking are our two primary units that operate in that space. The Great American Trucking focuses on independent contractors and physical damage coverages, so that wouldn't really be a factor. National Interstate, their secret sauce, if you will, is the captive model. Two-thirds of the business there has an ART element to it, which helps with risk collection. History of National Interstate is they started in passenger transportation and do have a trucking component. We feel like the ART, where you're banding together homogenous customers who all have skin in the game and interest in good performance, kind of insulates us from that competitive dynamic. Bigger picture, by reputation, big fleet trucking, which is a low-margin business, has a reputation as intensely competitive because every dollar spent on insurance cuts into those razor-thin margins.
We don't want to play where we don't have an edge or an opportunity to make adequate returns.
Got it. That's helpful. The final question I had was, I know someone else had talked about the pricing component. Could you just sort of flush out, I guess, the comp piece of it, and how should we think about that pricing going forward? Thanks.
Yeah, Amit. Overall, we're obviously very pleased with our combined workers' comp book. This past year had a very healthy accident year and a healthy calendar year on the business in that. Our perspective next year kind of built into guidance. Premiums will probably be down some. Rates in Florida and in California, rates will probably, with pricing changes, there could be another double digit, a 10%-12% price decline in California comp and in the Florida component of Summit in that. I think in 2019, premiums will be down low single digit. I think we're still going to make a small accident year underwriting profit and a pretty healthy calendar year underwriting profit this year. Our businesses have a very nice, strong reserve position. Continue to be very pleased with workers' comp.
Got it. Thanks for the detail. I'll stop here. Thanks for the answers, good luck for the future.
I'm showing no further questions in queue at this time. I'd like to turn the call back to Ms. Weidner for closing remarks.
Thank you, thank you all for joining us this morning as we reviewed our fourth quarter and full-year results. We look forward to talking with you all again next quarter.
Ladies and gentlemen, thank you for your participation in today's conference. This concludes the program, you may now disconnect. Everyone, have a great day.