FSLY vs TDC: Correlation
How closely do Fastly, Inc. (FSLY) and Teradata Corporation (TDC) trade together? Their weekly returns over three years give a correlation of 0.51, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FSLY and TDC?
Over the past 3 years, FSLY and TDC moved with a correlation of 0.51, which is moderate. Little has changed lately, as the 1-year reading of 0.46 lands near the 3-year figure. Over 5 years the correlation is 0.52, and the annualized covariance of weekly returns is 2294.2 %².
Few assets follow FSLY as closely as TDC, which ranks #2 of 11 tracked partners. Their recent paths diverged sharply: over the last 12 months FSLY outperformed by 193.7 percentage points (+229.0% for FSLY against +35.3% for TDC). Note the risk asymmetry: FSLY runs 2.3 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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 TDC: side by side
| FSLY (Fastly, Inc.) | TDC (Teradata Corporation) | |
|---|---|---|
| 1-year return | +229.0% | +35.3% |
| 5-year return | -43.5% | -46.9% |
| Volatility (ann.) | 101.8% | 44.0% |
| Beta vs S&P 500 | 1.26 | 0.83 |
| Max drawdown (3Y) | -80.0% | -60.8% |
| Market cap | $3.9B | $2.7B |
| P/E (trailing) | – | 5.7 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FSLY | TDC |
|---|---|---|
| 2022 | -76.9% | -20.7% |
| 2023 | +117.3% | +29.3% |
| 2024 | -47.0% | -28.4% |
| 2025 | +7.8% | -2.3% |
| 2026 | +142.0% | -6.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FSLY and TDC good diversifiers for each other?
To a limited degree. At 0.51 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between FSLY and TDC?
The FSLY/TDC correlation stands at 0.51 on a 3-year window (1 year: 0.46, 5 years: 0.52), computed from weekly returns as of 2026-08-27.
Is TDC a good diversifier for FSLY?
To a limited degree. At 0.51 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.51 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-tdc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/fsly-vs-tdc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FSLY correlations · TDC correlations
