Fastly (FSLY) Historical Monthly & Quarterly Returns
Dividend-adjusted returns by month and quarter. Compare performance across years.
Fastly
FSLY
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 9.1% | +106.7% | +52.0% | 12.6% | — | — | — | — | — | — | — | — |
| 2025 | +10.9% | 35.0% | 7.0% | 9.2% | +26.6% | 3.0% | 3.8% | +12.1% | +12.4% | 3.0% | +40.7% | 12.7% |
| 2024 | +13.0% | 29.3% | 8.8% | 2.5% | 38.0% | 6.0% | +9.9% | 25.7% | +25.7% | 4.5% | +17.3% | +11.3% |
| 2023 | +26.4% | +34.2% | +27.9% | 16.8% | +10.1% | 3.1% | +16.5% | +29.5% | 19.4% | 23.5% | +13.2% | +7.2% |
| 2022 | 19.2% | 35.1% | 6.6% | 8.5% | 17.9% | 11.0% | 2.1% | 17.8% | 2.0% | 7.3% | +13.8% | 15.2% |
| 2021 | +25.2% | 32.7% | 8.6% | 5.1% | 26.1% | +26.3% | 19.3% | 9.3% | 7.2% | +25.1% | 19.5% | 13.0% |
| 2020 | +12.2% | 12.0% | 4.1% | +14.1% | +99.3% | +97.3% | +13.3% | 3.8% | +0.9% | 32.2% | +33.5% | +3.1% |
| 2019 | — | — | — | — | 13.3% | 2.5% | +7.0% | +45.6% | 24.1% | 16.6% | +1.9% | 1.7% |
| Avg | +8.5% | 0.5% | +6.4% | 5.8% | +5.8% | +14.0% | +3.1% | +4.4% | 2.0% | 8.9% | +14.4% | 3.0% |
| Median | +12.2% | 29.3% | 6.6% | 8.5% | 13.3% | 3.0% | +7.0% | 3.8% | 2.0% | 7.3% | +13.8% | 1.7% |
| Win % | 71% | 29% | 29% | 14% | 43% | 29% | 57% | 43% | 43% | 14% | 86% | 43% |
2026
Jan9.1%
Feb+106.7%
Mar+52.0%
Apr12.6%
May—
Jun—
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+10.9%
Feb35.0%
Mar7.0%
Apr9.2%
May+26.6%
Jun3.0%
Jul3.8%
Aug+12.1%
Sep+12.4%
Oct3.0%
Nov+40.7%
Dec12.7%
2024
Jan+13.0%
Feb29.3%
Mar8.8%
Apr2.5%
May38.0%
Jun6.0%
Jul+9.9%
Aug25.7%
Sep+25.7%
Oct4.5%
Nov+17.3%
Dec+11.3%
2023
Jan+26.4%
Feb+34.2%
Mar+27.9%
Apr16.8%
May+10.1%
Jun3.1%
Jul+16.5%
Aug+29.5%
Sep19.4%
Oct23.5%
Nov+13.2%
Dec+7.2%
2022
Jan19.2%
Feb35.1%
Mar6.6%
Apr8.5%
May17.9%
Jun11.0%
Jul2.1%
Aug17.8%
Sep2.0%
Oct7.3%
Nov+13.8%
Dec15.2%
2021
Jan+25.2%
Feb32.7%
Mar8.6%
Apr5.1%
May26.1%
Jun+26.3%
Jul19.3%
Aug9.3%
Sep7.2%
Oct+25.1%
Nov19.5%
Dec13.0%
2020
Jan+12.2%
Feb12.0%
Mar4.1%
Apr+14.1%
May+99.3%
Jun+97.3%
Jul+13.3%
Aug3.8%
Sep+0.9%
Oct32.2%
Nov+33.5%
Dec+3.1%
2019
Jan—
Feb—
Mar—
Apr—
May13.3%
Jun2.5%
Jul+7.0%
Aug+45.6%
Sep24.1%
Oct16.6%
Nov+1.9%
Dec1.7%
Avg
Jan+8.5%
Feb0.5%
Mar+6.4%
Apr5.8%
May+5.8%
Jun+14.0%
Jul+3.1%
Aug+4.4%
Sep2.0%
Oct8.9%
Nov+14.4%
Dec3.0%
Median
Jan+12.2%
Feb29.3%
Mar6.6%
Apr8.5%
May13.3%
Jun3.0%
Jul+7.0%
Aug3.8%
Sep2.0%
Oct7.3%
Nov+13.8%
Dec1.7%
Win %
Jan71%
Feb29%
Mar29%
Apr14%
May43%
Jun29%
Jul57%
Aug43%
Sep43%
Oct14%
Nov86%
Dec43%
Frequently asked questions
What is the best performing month for Fastly (FSLY) stock?
- Historically, November is the best performing month for Fastly (FSLY) stock with an average return of +14.42%.
What is the worst performing month for Fastly (FSLY) stock?
- Historically, October is the worst performing month for Fastly (FSLY) stock with an average return of 8.85%.
What is the best performing quarter for Fastly (FSLY) stock?
- Historically, Q2 is the best performing quarter for Fastly (FSLY) stock with an average return of +29.13%.
What is the worst performing quarter for Fastly (FSLY) stock?
- Historically, Q4 is the worst performing quarter for Fastly (FSLY) stock with an average return of 1.35%.
What is the best performing year for Fastly (FSLY) stock?
- Historically, 2020 is the best performing year for Fastly (FSLY) stock with a return of +335.33%.
What is the worst performing year for Fastly (FSLY) stock?
- Historically, 2022 is the worst performing year for Fastly (FSLY) stock with a return of 76.90%.
Which month has the highest win rate for Fastly (FSLY) stock?
- Historically, November has the highest win rate for Fastly (FSLY) stock — positive in 86% of years.
Which month has the lowest win rate for Fastly (FSLY) stock?
- Historically, April has the lowest win rate for Fastly (FSLY) stock — positive in 14% of years.
Which quarter has the highest win rate for Fastly (FSLY) stock?
- Historically, Q3 has the highest win rate for Fastly (FSLY) stock — positive in 71% of years.
Which quarter has the lowest win rate for Fastly (FSLY) stock?
- Historically, Q2 has the lowest win rate for Fastly (FSLY) stock — positive in 25% of years.
Data & methodology
How are returns calculated?
- We compare the closing price at the end of each period (month or quarter) with the closing price at the end of the previous period. The return is the percentage change. All prices are adjusted for dividends and stock splits. Based on historical prices from our data provider.
What is average vs median?
- Average is the arithmetic mean of returns for each period across years. Median is the middle value. Both exclude empty cells. Use median to reduce impact of outliers.
What does the heatmap show?
- Green cells indicate positive returns, red cells indicate negative returns. The darker the color, the stronger the move. Average and Median rows summarize each column across years.
What is Win %?
- Percentage of years when the period had a positive return. For example, 80% for January means January was positive in 80% of the years in the selected range.
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