FSLY vs QQQ: Correlation
Fastly, Inc. (FSLY) and Invesco QQQ Trust (QQQ) show a weak relationship: their 3-year correlation of weekly returns is 0.17.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FSLY and QQQ?
Across a 3-year window, the weekly returns of FSLY and QQQ correlate at 0.17, weak. The past 12 months show a weaker link (-0.14) than the 3-year average (0.17). Stretching to 5 years gives 0.32, with an annualized covariance of 346.8 %².
QQQ is close to the least connected end of FSLY's tracked universe, ranking #7 of 11. Correlation aside, the last 12 months split them widely, with FSLY ahead by 202.7 points (+229.0% versus +26.3%). One caveat on sizing: FSLY is 5.2 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
FSLY vs QQQ: side by side
| FSLY (Fastly, Inc.) | QQQ (Invesco QQQ Trust) | |
|---|---|---|
| 1-year return | +229.0% | +26.3% |
| 5-year return | -43.5% | +95.4% |
| Volatility (ann.) | 101.8% | 19.6% |
| Beta vs S&P 500 | 1.26 | 1.28 |
| Max drawdown (3Y) | -80.0% | -22.8% |
| Market cap | $3.9B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.44% |
| Expense ratio | – | 0.18% |
| Assets under management | – | $452.8B |
| Sector / category | US Listed | ETF · US Growth & Tech |
QQQ is a Large Growth fund from Invesco: $452.8B under management, 104 holdings, a 0.18% expense ratio, a 0.44% trailing dividend yield.
Year-by-year returns
| Year | FSLY | QQQ |
|---|---|---|
| 2022 | -76.9% | -32.6% |
| 2023 | +117.3% | +54.9% |
| 2024 | -47.0% | +25.6% |
| 2025 | +7.8% | +20.8% |
| 2026 | +142.0% | +17.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FSLY and QQQ good diversifiers for each other?
Yes. With a correlation of 0.17, FSLY and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between FSLY and QQQ?
As of 2026-08-27, the correlation of weekly returns between FSLY and QQQ is 0.17 over 3 years, -0.14 over 1 year and 0.32 over 5 years.
Is QQQ a good diversifier for FSLY?
Yes. With a correlation of 0.17, FSLY and QQQ have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of 0.17 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/fsly-vs-qqq.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/fsly-vs-qqq/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FSLY correlations · QQQ correlations
