SPY vs TDC: Correlation
SPDR S&P 500 ETF Trust (SPY) and Teradata Corporation (TDC) show a weak relationship: their 3-year correlation of weekly returns is 0.27.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are SPY and TDC?
Across a 3-year window, the weekly returns of SPY and TDC correlate at 0.27, weak. The link has loosened recently: the 1-year correlation (0.08) runs below the 3-year figure (0.27). Stretching to 5 years gives 0.35, with an annualized covariance of 173.6 %².
By 3-year correlation, TDC places #2579 of the 4755 assets tracked against SPY. The trailing year gives TDC the advantage: +20.6% versus +35.3%, a 14.7-point spread. Risk is not evenly split, since TDC carries 3.0 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.
SPY vs TDC: side by side
| SPY (SPDR S&P 500 ETF Trust) | TDC (Teradata Corporation) | |
|---|---|---|
| 1-year return | +20.6% | +35.3% |
| 5-year return | +82.4% | -46.9% |
| Volatility (ann.) | 14.5% | 44.0% |
| Beta vs S&P 500 | 1.00 | 0.83 |
| Max drawdown (3Y) | -18.8% | -60.8% |
| Market cap | – | $2.7B |
| P/E (trailing) | – | 5.7 |
| Dividend yield | 1.01% | 0.00% |
| Expense ratio | 0.09% | – |
| Assets under management | $795.3B | – |
| Sector / category | ETF · US Large Cap | US Listed |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | SPY | TDC |
|---|---|---|
| 2022 | -18.2% | -20.7% |
| 2023 | +26.2% | +29.3% |
| 2024 | +24.9% | -28.4% |
| 2025 | +17.7% | -2.3% |
| 2026 | +13.7% | -6.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are SPY and TDC good diversifiers for each other?
A fair diversifier. At 0.27, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between SPY and TDC?
As of 2026-08-27, the correlation of weekly returns between SPY and TDC is 0.27 over 3 years, 0.08 over 1 year and 0.35 over 5 years.
Is TDC a good diversifier for SPY?
A fair diversifier. At 0.27, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.27 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-tdc.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/spy-vs-tdc/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: SPY correlations · TDC correlations
