BKSY vs RKLB: Correlation
BlackSky Technology Inc. (BKSY) and Rocket Lab Corporation (RKLB) show a moderate relationship: their 3-year correlation of weekly returns is 0.49.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BKSY and RKLB?
Across a 3-year window, the weekly returns of BKSY and RKLB correlate at 0.49, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.64 versus 0.49 over 3 years. Stretching to 5 years gives 0.45, with an annualized covariance of 3819.3 %².
RKLB is one of the assets that tracks BKSY most closely: it ranks #3 out of the 14 assets we track against BKSY. The trailing year gives RKLB the advantage: +36.3% versus +46.0%, a 9.7-point spread.
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.
BKSY vs RKLB: side by side
| BKSY (BlackSky Technology Inc.) | RKLB (Rocket Lab Corporation) | |
|---|---|---|
| 1-year return | +36.3% | +46.0% |
| 5-year return | -69.1% | +573.3% |
| Volatility (ann.) | 90.5% | 85.6% |
| Beta vs S&P 500 | 2.48 | 2.58 |
| Max drawdown (3Y) | -69.1% | -61.0% |
| Market cap | $1.0B | $43.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BKSY | RKLB |
|---|---|---|
| 2022 | -65.7% | -69.3% |
| 2023 | -9.1% | +46.7% |
| 2024 | -3.7% | +360.6% |
| 2025 | +73.8% | +173.9% |
| 2026 | +32.1% | -3.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BKSY and RKLB good diversifiers for each other?
Reasonably. At 0.49, BKSY and RKLB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BKSY and RKLB?
Using weekly returns as of 2026-08-27: 0.49 over 3 years, with 0.64 over the last year and 0.45 over 5 years.
Is RKLB a good diversifier for BKSY?
Reasonably. At 0.49, BKSY and RKLB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.49 mean?
A reading of 0.49 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: BKSY correlations · RKLB correlations
