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FSLY

Fastly, Inc. Technology As of 2026-07-31 Updated daily after market close

quality needs a look, discounted valuation.

2 active signals
Top-quintile 6-month momentum Filed revenue acceleration
This page refreshes daily after the close. Add Fastly, Inc. to your watchlist to track signal changes on your next visit.
Valuation 56Quality 37Growth 57Momentum 54Risk / liquidity 50

Is Fastly, Inc. a buy? Fundamentals and valuation first

  • Quality is weaker than peers. Operating margin is only around the 23th percentile. TTM ROE is about -10.6%.

  • Valuation is cheaper than most peers. TTM P/E is in the 8th percentile, lower than most liquid US common stocks.

  • Recent volatility is elevated. 60-day annualized volatility is in the 86th percentile. Average 20-day dollar volume is about $97.7M.

  • Signals are active now. Top-quintile 6-month momentum, Filed revenue acceleration currently holds; the tables below show what followed in this stock’s own history.

Historical evidence

Signals active now

Each active condition is tested against this stock’s own history and benchmarked versus the S&P 500.

Top-quintile 6-month momentum

Active · now 98.72340425531915%

The stock ranks in the top 20% of the liquid US common-stock universe by 126-day adjusted return.

14 historical occurrences (since 2020-02-10)
Average forward return after Top-quintile 6-month momentum。20-day: Win 35.7%, Sample 14, Median -10.64%, Excess +1.88%, Beat mkt rate 35.7%；60-day: Win 42.9%, Sample 14, Median -10.64%, Excess +21.3%, Beat mkt rate 42.9%；120-day: Win 57.1%, Sample 14, Median +4.62%, Excess +58.51%, Beat mkt rate 42.9%

120 days after: historical avg +66.3%

20-day +1.4%
60-day +21.86%
120-day +66.3%
20-day
60-day
120-day
Win
35.7%
42.9%
57.1%
Sample
14
14
14
Median
-10.64%
-10.64%
+4.62%
Excess
+1.88%
+21.3%
+58.51%
Beat mkt rate
35.7%
42.9%
42.9%

Over 14 occurrences, 120-day forward avg gained 66.3%, beat the market by 58.51 pts; win rate 57.1%.

Filed revenue acceleration

Active · now 17.657717757784464%

TTM revenue growth is at least 10% and improved versus the prior filed quarter; event date is the SEC filing date.

7 historical occurrences (since 2020-08-07)
Average forward return after Filed revenue acceleration。20-day: Win 71.4%, Sample 7, Median +11.66%, Excess +6.49%, Beat mkt rate 57.1%；60-day: Win 50%, Sample 6, Median -2.24%, Excess +2.96%, Beat mkt rate 50%；120-day: Win 60%, Sample 5, Median +37.84%, Excess +15.37%, Beat mkt rate 60%

120 days after: historical avg +25.12%

20-day +7.34%
60-day +7.07%
120-day +25.12%
20-day
60-day
120-day
Win
71.4%
50%
60%
Sample
7
6
5
Median
+11.66%
-2.24%
+37.84%
Excess
+6.49%
+2.96%
+15.37%
Beat mkt rate
57.1%
50%
60%

Over 5 occurrences, 120-day forward avg gained 25.12%, beat the market by 15.37 pts; win rate 60%.

Market-wide momentum baseline

Across 97,878 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.26%, a 58.3% positive-return rate, and +2.90 percentage points of average excess return versus the S&P 500.

Baseline: weekly samples since 2016 where a liquid US common stock ranked in the top quintile by 126-trading-day momentum. Forward return is 60 trading days; excess return is versus S&P 500 (^GSPC).

Signals not active now

Inactive signals still show the stock-specific historical forward-return distribution for context.

52-week adjusted-price high

Pending

Adjusted close first reaches a 252-trading-day high; repeated hits within 20 days count once.

9 times historically; 60-day forward avg -2.42%, win rate 44.4%, beating the market by -7.53 pts on average.

EPS surprise beat

Pending

Reported EPS beat consensus estimate by at least 5%; event date is the earnings-surprise timestamp.

22 times historically; 60-day forward avg +18.47%, win rate 61.9%, beating the market by +14.4 pts on average.

Method and limits

  • Returns use us_price:adj_close, adjusted for splits and dividends where available.
  • Excess returns use world_index:^GSPC as the S&P 500 benchmark proxy.
  • Quarterly fundamentals are aligned to SEC filing dates before daily valuation studies.
  • The promoted universe starts from active NYSE/NASDAQ common stocks, then applies price and dollar-volume gates.
  • Snapshot-only tables such as analyst consensus, DCF, us_ratios, and us_key_metrics are intentionally excluded from historical evidence.
  • Overlapping event windows are descriptive distributions, not independent samples.

This page is for historical data analysis and education only. It is not investment advice. Backtests and historical return distributions do not predict future performance; evaluate risk independently before trading.