Fastly (FSLY) — Daily Price Character
Historical session stats from dividend-adjusted prices: win rate, streaks, record days, weekday patterns, and (when available) how often the stock was green on S&P 500 green days.
FSLY
Archetype
Explosive
High daily volatility — frequent large price swings.
Win rate
49.3%
873 green · 885 red · 13 flat · 1771 sessions
Current streak
1 red
As of Jun 4, 2026
Max win / lose streak
11 / 9 days
Win streak return: +88.80% · Lose: 41.11%
Median / σ daily
+0.000% · 5.625%
Avg green +3.91% · avg red 3.57%
Extreme days (>3%)
46.5%
416 up · 407 down
History from May 20, 2019 through Jun 4, 2026 · 1771 trading days with returns.
Trailing year — daily returns (calendar)
Jun 5, 2025 – Jun 4, 2026 · Mon–Fri sessions only
Monday–Friday — average return
Average dividend-adjusted return on that weekday (green / red by sign). Green/red day rule: ±0.01% vs prior close.
Monday–Friday — win rate
Share of sessions that closed green on that weekday. Bars are green at or above 50%, red below 50%.
Top green days
Largest single-session gains (dividend-adjusted), by historical return.
| Date | Return |
|---|---|
| Feb 12, 2026 | +72.29% |
| May 7, 2020 | +45.68% |
| Nov 6, 2025 | +35.94% |
| Feb 13, 2023 | +27.66% |
| May 8, 2025 | +26.37% |
| Aug 3, 2023 | +23.04% |
| Mar 17, 2020 | +22.55% |
| Oct 7, 2020 | +19.84% |
| Nov 10, 2022 | +19.30% |
| Mar 19, 2020 | +18.22% |
| May 5, 2026 | +17.72% |
| Nov 21, 2024 | +17.44% |
| Aug 22, 2019 | +16.81% |
| Dec 2, 2024 | +16.39% |
| Apr 9, 2025 | +16.00% |
| Feb 16, 2023 | +15.79% |
| Aug 3, 2020 | +15.72% |
| Nov 2, 2023 | +15.58% |
| Jun 22, 2020 | +15.04% |
| Dec 8, 2020 | +14.69% |
Worst red days
Largest single-session losses; "Days to recovery" counts trading sessions until close recovered the prior peak (dividend-adjusted).
| Date | Return | Days to recovery |
|---|---|---|
| May 7, 2026 | 38.23% | — |
| Feb 17, 2022 | 33.63% | 1027 |
| May 2, 2024 | 32.02% | 446 |
| Feb 15, 2024 | 30.59% | 517 |
| Oct 15, 2020 | 27.18% | — |
| May 6, 2021 | 27.13% | 34 |
| Apr 10, 2026 | 21.69% | 17 |
| Feb 13, 2025 | 20.85% | 184 |
| Mar 16, 2020 | 20.50% | 2 |
| May 5, 2022 | 18.09% | 226 |
| Aug 9, 2019 | 18.06% | 9 |
| Aug 6, 2020 | 17.70% | 43 |
| Feb 18, 2021 | 15.45% | — |
| Aug 8, 2024 | 14.33% | 26 |
| Apr 14, 2026 | 14.03% | 2 |
| Mar 6, 2020 | 14.03% | 25 |
| Jul 11, 2022 | 14.00% | 152 |
| Mar 12, 2020 | 13.95% | 5 |
| Oct 5, 2023 | 13.64% | 32 |
| Sep 9, 2019 | 13.47% | 2 |
Frequently asked questions
What is the daily win rate for Fastly (FSLY)?
Historically, Fastly (FSLY) closed green on 49.3% of trading days (873 green, 885 red, 13 flat), using dividend-adjusted closes and a ±0.01% threshold for green vs red.
What is the current winning or losing streak for Fastly (FSLY)?
As of 2026-06-04, Fastly (FSLY) is on a 1-day losing streak (consecutive green or red days by the same rules, ignoring trailing flat days).
What does Steady, Balanced, or Explosive mean for Fastly (FSLY)?
We label Fastly (FSLY) as "explosive" based on the sample standard deviation of daily returns: High daily volatility — frequent large price swings.
What were the best and worst single trading days for Fastly (FSLY)?
Largest single-day gain: +72.29%. Largest single-day loss: 38.23%. Tables on this page list the top record green and red days.
What counts as an "extreme" daily move for Fastly (FSLY)?
We treat a day as extreme if the absolute dividend-adjusted daily return exceeds 3%. About 46.5% of trading days for Fastly (FSLY) were extreme (416 up, 407 down).
Data & methodology
How are green, red, and flat days defined?
We use dividend-adjusted (or close-to-close for non-equity) daily returns. Green: return ≥ +0.01%. Red: return ≤ −0.01%. Flat: between those bounds.
How is the current streak calculated?
We count consecutive green or consecutive red days using the same thresholds. If the most recent session is flat, we skip trailing flat days and measure from the last non-flat close.
What does “vs S&P 500” mean?
On sessions where the S&P 500 (^GSPC) was green, we report how often this stock was also green. Shown only for USD equities when benchmark data exists and the symbol is not the index itself.
Where does the archetype come from?
Sample standard deviation of daily returns: low → Steady, high → Explosive, otherwise Balanced. Labels describe typical daily volatility, not quality of the investment.
Explore more
FSLY Overview
Company profile, financial tools, and key metrics
FSLY Revenue Counter
Earns $20.69 every second. See per minute, hour, and day.
FSLY Earnings Counter
Loses −$3.27 per second. See per minute, hour, and day.
FSLY Economic Scale
Exceeds Micronesia, Fed. Sts.'s GDP. Compare with world economies.
FSLY What If Invested
What if you had invested $1,000? See historical returns from any date.
FSLY How It Makes Money
Discover visual breakdown of $652.57M in revenue — where it comes from and where it goes.
FSLY Stock Seasonality
Best and worst months to invest. Historical monthly returns heatmap.
FSLY Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
FSLY Buybacks
Recent repurchase activity. Shareholder yield & SBC comparison.
FSLY Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.