SPY vs TACT: Correlation
SPDR S&P 500 ETF Trust (SPY) and TransAct Technologies Incorporated (TACT) show a weak relationship: their 3-year correlation of weekly returns is 0.19.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and TACT?
Over the past 3 years, SPY and TACT moved with a correlation of 0.19, which is weak. The relationship has been stable: the 1-year correlation (0.17) sits close to the 3-year figure. Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 117.7 %².
By 3-year correlation, TACT places #3391 of the 4755 assets tracked against SPY. Neither side won the trailing year by much: +20.6% against +23.5%. Note the risk asymmetry: TACT runs 2.9 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
SPY vs TACT: side by side
| SPY (SPDR S&P 500 ETF Trust) | TACT (TransAct Technologies Incorporated) | |
|---|---|---|
| 1-year return | +20.6% | +23.5% |
| 5-year return | +82.4% | -64.0% |
| Volatility (ann.) | 14.5% | 42.2% |
| Beta vs S&P 500 | 1.00 | 0.56 |
| Max drawdown (3Y) | -18.8% | -59.0% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 1.01% | 0.00% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
SPY, State Street Investment Management's Large Blend fund, carries $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | SPY | TACT |
|---|---|---|
| 2022 | -18.2% | -42.0% |
| 2023 | +26.2% | +10.4% |
| 2024 | +24.9% | -41.4% |
| 2025 | +17.7% | -2.2% |
| 2026 | +13.7% | +26.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and TACT good diversifiers for each other?
By historical standards, yes. A correlation of 0.19 means the two rarely move for the same reasons.
FAQ
What is the correlation between SPY and TACT?
The SPY/TACT correlation stands at 0.19 on a 3-year window (1 year: 0.17, 5 years: 0.29), computed from weekly returns as of 2026-08-27.
Is TACT a good diversifier for SPY?
By historical standards, yes. A correlation of 0.19 means the two rarely move for the same reasons.
What does a correlation of 0.19 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/spy-vs-tact.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/spy-vs-tact/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: SPY correlations · TACT correlations
