FSLY Historical PE Ratio Notes

— Fastly, Inc. (NYSE: FSLY) is a technology company specializing in edge cloud computing and content delivery network (CDN) services. Its platform enables websites & online applications to deliver data, video, and digital content quickly, reliably, and securely to users around the world. Fastly's customers include high-profile media, ecommerce, and enterprise organizations that depend on low latency and high performance. For an investor examining Fastly's historical price, earnings, and PE ratio data, it's important to note that Fastly has operated in a highly competitive, fast-changing sector, and has historically prioritized growth over profitability. As a result, the company's earnings have often been negative or volatile, which in turn can cause the historical PE ratio to be extremely high, erratic, or even undefined (when earnings per share are negative). When reviewing historical FSLY PE ratios, keep in mind that investor sentiment has sometimes been based more on growth expectations and market potential rather than traditional profitability metrics. Therefore, sudden spikes or drops in the PE ratio might reflect shifts in market optimism, changing competitive dynamics, or adjustments to the company's growth strategy.

On this page we presented the Fastly Historical PE Ratio information for Fastly' stock. The average FSLY 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 52.7. Meanwhile, using the trailing twelve month (TTM) quarterly earnings result as our method of calculation the "E" value at each measurement period, the average FSLY historical PE based on this TTM earnings result method is 96.8. Note: any PE calculations resulting in a value exceeding 500 were discarded as not meaningful. Note: any PE calculations involving negative earnings were discarded as not meaningful.

Let's now compare this FSLY historical PE result, against the recent PE: when this page was posted on 5/15/2026, the most recent closing price for FSLY had been 17.00, and the most recent quarterly earnings result, annualized, was 0.52. Meanwhile, the most recent TTM earnings summed to 0.29. From these numbers, we calculate the recent FSLY PE on 5/15/2026 based on annualized quarterly EPS was 32.7. Based on FSLY's history, that recent PE is low relative to the historical average, with the recent PE 38.0% lower than the historical average PE across our data set for Fastly. Looking at the recent FSLY PE on 5/15/2026 based on TTM EPS, we calculate the ratio at 58.6. Based on FSLY's history, that recent PE is low relative to the historical average, with the recent PE 39.5% lower than the average PE across our Fastly data set with TTM EPS used in the calculation at each period.

Another interesting FSLY historical PE Ratio calculation we look at is to take the median earnings per share of the last four quarters for FSLY, and then annualize the resulting value... with that annualized number then being used in the PE calculation. To walk through this math for FSLY, we start with the past four EPS numbers and we first sort them from lowest to highest: -0.03, 0.07, 0.12, and 0.13. We then toss out the highest and lowest result, and then take the average of those two middle numbers — 0.07 and 0.12 — which gives us the median of 0.10. Basically the way to think about this 0.10 number is this: for the trailing four earnings reports, 0.10 marks the "middle ground" number where FSLY has reported a value higher than 0.10 half the time, and has reported a value lower than 0.10 half the time. Annualizing that median value then gets us to 0.4/share, which we use as the denominator in our next PE calculation. With 17.00 as the numerator (as of 5/15/2026), the calculation is then 17.00 / 0.4 = 42.5 as the FSLY PE ratio as of 5/15/2026, based on that annualized median value we calculated.

For self directed investors doing their due diligence on FSLY or any other given stock, valuation analysis for FSLY 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 Fastly 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 FSLY. Thanks for visiting, and the next time you need to research FSLY 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.