RKLB vs TSAT: Correlation
Rocket Lab Corporation (RKLB) and Telesat Corporation - Class A (TSAT) show a moderate relationship: their 3-year correlation of weekly returns is 0.42.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RKLB and TSAT?
On 3 years of weekly data the RKLB/TSAT correlation comes out at 0.42, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.64 versus 0.42 over 3 years. The 5-year figure is 0.34, and annualized covariance runs at 2758.8 %².
By 3-year correlation, TSAT places #13 of the 22 assets tracked against RKLB. The last year tells two different stories: TSAT led by 81.1 percentage points, +46.0% for RKLB against +127.1% for TSAT.
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.
RKLB vs TSAT: side by side
| RKLB (Rocket Lab Corporation) | TSAT (Telesat Corporation - Class A) | |
|---|---|---|
| 1-year return | +46.0% | +127.1% |
| 5-year return | +573.3% | +10.3% |
| Volatility (ann.) | 85.6% | 76.7% |
| Beta vs S&P 500 | 2.58 | 1.43 |
| Max drawdown (3Y) | -61.0% | -64.5% |
| Market cap | $43.2B | $2.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | RKLB | TSAT |
|---|---|---|
| 2022 | -69.3% | -73.8% |
| 2023 | +46.7% | +39.1% |
| 2024 | +360.6% | +57.6% |
| 2025 | +173.9% | +77.0% |
| 2026 | -3.2% | +57.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RKLB and TSAT good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between RKLB and TSAT?
The RKLB/TSAT correlation stands at 0.42 on a 3-year window (1 year: 0.64, 5 years: 0.34), computed from weekly returns as of 2026-08-27.
Is TSAT a good diversifier for RKLB?
Yes, to a useful degree: a correlation of 0.42 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.42 mean?
On the −1 to +1 scale, 0.42 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/rklb-vs-tsat.json
Embed this badge (it refreshes with the data), with attribution:
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Related comparisons
Hubs: RKLB correlations · TSAT correlations
