BE vs STK: Correlation
Bloom Energy Corporation (BE) and Columbia Seligman Premium Technology Growth Fund Inc (STK) show a moderate relationship: their 3-year correlation of weekly returns is 0.54.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BE and STK?
Across a 3-year window, the weekly returns of BE and STK correlate at 0.54, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.76 versus 0.54 over 3 years. Stretching to 5 years gives 0.50, with an annualized covariance of 1348.7 %².
Few assets follow BE as closely as STK, which ranks #1 of 12 tracked partners. Correlation aside, the last 12 months split them widely, with BE ahead by 251.6 points (+328.4% versus +76.8%). Risk is not evenly split, since BE carries 3.6 times the volatility of the other side.
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.
BE vs STK: side by side
| BE (Bloom Energy Corporation) | STK (Columbia Seligman Premium Technology Growth Fund Inc) | |
|---|---|---|
| 1-year return | +328.4% | +76.8% |
| 5-year return | +914.6% | +153.2% |
| Volatility (ann.) | 94.3% | 26.4% |
| Beta vs S&P 500 | 2.56 | 1.51 |
| Max drawdown (3Y) | -52.7% | -26.6% |
| Market cap | $64.2B | – |
| P/E (trailing) | 286.6 | 5.9 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BE | STK |
|---|---|---|
| 2022 | -12.8% | -30.4% |
| 2023 | -22.6% | +49.2% |
| 2024 | +50.1% | +17.7% |
| 2025 | +291.2% | +24.9% |
| 2026 | +150.7% | +47.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BE and STK good diversifiers for each other?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
FAQ
What is the correlation between BE and STK?
Using weekly returns as of 2026-08-27: 0.54 over 3 years, with 0.76 over the last year and 0.50 over 5 years.
Is STK a good diversifier for BE?
Somewhat, no more. With 0.54 correlation, most large moves hit both names, and the diversification benefit stays modest.
What does a correlation of 0.54 mean?
A reading of 0.54 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/be-vs-stk.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/be-vs-stk/)
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Related comparisons
Hubs: BE correlations · STK correlations
