ALSN Historical PE Ratio Notes

— Allison Transmission Holdings, Inc. (ticker: ALSN) is a leading designer & manufacturer of fully automatic transmissions for commercial, defense, and specialty vehicles, with a global presence and a history dating back to 1915. The company's core business revolves around drivetrain solutions for medium- & heavy-duty trucks, buses, motorhomes, and military vehicles, serving customers in more than 80 countries. Because ALSN's products are essential components in key industries such as logistics, infrastructure, and defense, its earnings tend to reflect long-term trends in these sectors rather than cyclical booms & busts typical of passenger vehicle manufacturers. When analyzing historical PE ratios for ALSN, it's important to note that the stock market typically assigns modest valuations to auto parts & heavy equipment suppliers, given their capital-intensity, reliance on large contracts, and moderate growth prospects. Fluctuations in ALSN's historical PE ratio often trace back to factors like changes in commercial vehicle demand, shifts in raw material costs, and macroeconomic conditions—all impacting the company's earnings and, by extension, the market's willingness to pay a premium for its shares. Awareness of these context drivers will help make sense of the trends you're about to see in ALSN's price, earnings, and valuation history.

On this page we presented the ALSN Historical PE Ratio information for Allison Transmission' stock. The average ALSN historical PE based on using the annualized quarterly earnings result at each measurement period (for the "E" in the PE calculation; and the closing price on earnings date as the "P") is 16.7. Meanwhile, using the trailing twelve month (TTM) quarterly earnings result as our method of calculation the "E" value at each measurement period, the average ALSN historical PE based on this TTM earnings result method is 15.2.

Let's now compare this ALSN historical PE result, against the recent PE: when this page was posted on 5/15/2026, the most recent closing price for ALSN had been 116.99, and the most recent quarterly earnings result, annualized, was 10.28. Meanwhile, the most recent TTM earnings summed to 7.67. From these numbers, we calculate the recent ALSN PE on 5/15/2026 based on annualized quarterly EPS was 11.4. Based on ALSN's history, that recent PE is low relative to the historical average, with the recent PE 31.7% lower than the historical average PE across our data set for Allison Transmission. Looking at the recent ALSN PE on 5/15/2026 based on TTM EPS, we calculate the ratio at 15.3. Based on ALSN's history, that recent PE is elevated relative to the historical average, with the recent PE 0.7% higher than the historical average PE across our Allison Transmission data set with TTM EPS used in the calculation at each period.

Another interesting ALSN historical PE Ratio calculation we look at is to take the median earnings per share of the last four quarters for ALSN, and then annualize the resulting value... with that annualized number then being used in the PE calculation. To walk through this math for ALSN, we start with the past four EPS numbers and we first sort them from lowest to highest: 1.18, 1.63, 2.29, and 2.57. We then toss out the highest and lowest result, and then take the average of those two middle numbers — 1.63 and 2.29 — which gives us the median of 1.96. Basically the way to think about this 1.96 number is this: for the trailing four earnings reports, 1.96 marks the "middle ground" number where ALSN has reported a value higher than 1.96 half the time, and has reported a value lower than 1.96 half the time. Annualizing that median value then gets us to 7.84/share, which we use as the denominator in our next PE calculation. With 116.99 as the numerator (as of 5/15/2026), the calculation is then 116.99 / 7.84 = 14.9 as the ALSN PE ratio as of 5/15/2026, based on that annualized median value we calculated.

For self directed investors doing their due diligence on ALSN or any other given stock, valuation analysis for ALSN can greatly benefit from studying the past earnings and resulting PE calculations. This exercise can help inform an analysis as to whether the past earnings trajectory and current versus historical PE ratios justify the current stock value.

That's why we bring you HistoricalPERatio.com to make it easy for investors to investigate Allison Transmission PE history or the past PE information for any stock in our coverage universe. And in your continued research we hope you will be sure to check out the further links included for earnings surprises history (beat/miss data) as well as next earnings dates for ALSN. Thanks for visiting, and the next time you need to research ALSN Historical PE Ratio or the ratio for another stock, we hope you'll think of our site, as your go-to historical PE ratio research resource of choice.