SPYG vs STK: Correlation
Measured on weekly returns over the past three years, SPDR Portfolio S&P 500 Growth ETF (SPYG) and Columbia Seligman Premium Technology Growth Fund Inc (STK) carry a correlation of 0.83, a very strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPYG and STK?
Over the past 3 years, SPYG and STK moved with a correlation of 0.83, which is very strong, meaning they move nearly in lockstep. Recent behaviour matches the longer record: 0.84 over 1 year against 0.83 over 3. Over 5 years the correlation is 0.83, and the annualized covariance of weekly returns is 415.9 %².
By 3-year correlation, STK places #19 of the 97 assets tracked against SPYG. Correlation aside, the last 12 months split them widely, with STK ahead by 54.4 points (+22.4% 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.
SPYG vs STK: side by side
| SPYG (SPDR Portfolio S&P 500 Growth ETF) | STK (Columbia Seligman Premium Technology Growth Fund Inc) | |
|---|---|---|
| 1-year return | +22.4% | +76.8% |
| 5-year return | +85.9% | +153.2% |
| Volatility (ann.) | 18.9% | 26.4% |
| Beta vs S&P 500 | 1.25 | 1.51 |
| Max drawdown (3Y) | -22.1% | -26.6% |
| Market cap | – | – |
| P/E (trailing) | – | 5.9 |
| Dividend yield | 0.49% | 0.00% |
| Expense ratio | 0.04% | – |
| Assets under management | $52.2B | – |
| Sector / category | ETF · US Style | US Listed |
On the fund side, SPYG sits in the Large Growth category at State Street Investment Management, with $52.2B under management, 148 holdings, a 0.04% expense ratio, a 0.49% trailing dividend yield.
Year-by-year returns
| Year | SPYG | STK |
|---|---|---|
| 2022 | -29.4% | -30.4% |
| 2023 | +30.0% | +49.2% |
| 2024 | +36.0% | +17.7% |
| 2025 | +22.1% | +24.9% |
| 2026 | +14.5% | +47.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPYG and STK good diversifiers for each other?
No: a correlation of 0.83 means SPYG and STK tend to fall together, which is precisely when diversification is supposed to help.
FAQ
What is the correlation between SPYG and STK?
As of 2026-08-27, the correlation of weekly returns between SPYG and STK is 0.83 over 3 years, 0.84 over 1 year and 0.83 over 5 years.
Is STK a good diversifier for SPYG?
No: a correlation of 0.83 means SPYG and STK tend to fall together, which is precisely when diversification is supposed to help.
What does a correlation of 0.83 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/spyg-vs-stk.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/spyg-vs-stk/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SPYG correlations · STK correlations
