ICLN vs STK: Correlation
Measured on weekly returns over the past three years, iShares Global Clean Energy ETF (ICLN) and Columbia Seligman Premium Technology Growth Fund Inc (STK) carry a correlation of 0.57, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are ICLN and STK?
On 3 years of weekly data the ICLN/STK correlation comes out at 0.57, moderate. The past 12 months show a tighter link (0.73) than the 3-year average (0.57). The 5-year figure is 0.56, and annualized covariance runs at 359.1 %².
By 3-year correlation, STK places #12 of the 78 assets tracked against ICLN. Correlation aside, the last 12 months split them widely, with STK ahead by 51.2 points (+25.6% versus +76.8%).
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.
ICLN vs STK: side by side
| ICLN (iShares Global Clean Energy ETF) | STK (Columbia Seligman Premium Technology Growth Fund Inc) | |
|---|---|---|
| 1-year return | +25.6% | +76.8% |
| 5-year return | -18.4% | +153.2% |
| Volatility (ann.) | 24.0% | 26.4% |
| Beta vs S&P 500 | 0.78 | 1.51 |
| Max drawdown (3Y) | -34.6% | -26.6% |
| Market cap | – | – |
| P/E (trailing) | – | 5.9 |
| Dividend yield | 1.05% | 0.00% |
| Expense ratio | 0.39% | – |
| Assets under management | $2.3B | – |
| Sector / category | ETF · Thematic | US Listed |
On the fund side, ICLN sits in the Miscellaneous Sector category at iShares, with $2.3B under management, 102 holdings, a 0.39% expense ratio, a 1.05% trailing dividend yield.
Year-by-year returns
| Year | ICLN | STK |
|---|---|---|
| 2022 | -5.4% | -30.4% |
| 2023 | -20.4% | +49.2% |
| 2024 | -25.7% | +17.7% |
| 2025 | +47.0% | +24.9% |
| 2026 | +8.8% | +47.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are ICLN and STK good diversifiers for each other?
Only partially. A correlation of 0.57 means ICLN and STK share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between ICLN and STK?
The ICLN/STK correlation stands at 0.57 on a 3-year window (1 year: 0.73, 5 years: 0.56), computed from weekly returns as of 2026-08-27.
Is STK a good diversifier for ICLN?
Only partially. A correlation of 0.57 means ICLN and STK share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.57 mean?
On the −1 to +1 scale, 0.57 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/icln-vs-stk.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/icln-vs-stk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: ICLN correlations · STK correlations
