RR vs SPY: Correlation
Measured on weekly returns over the past three years, Richtech Robotics Inc. (RR) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.21, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RR and SPY?
On 3 years of weekly data the RR/SPY correlation comes out at 0.21, weak. The link has tightened recently: the 1-year correlation (0.46) runs above the 3-year figure (0.21). The 5-year figure is n/a, and annualized covariance runs at 464.6 %².
Out of 21 assets tracked against RR, SPY lands near the bottom at #18. The last year tells two different stories: SPY led by 61.7 percentage points, -41.1% for RR against +20.6% for SPY. Note the risk asymmetry: RR runs 10.7 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.
RR vs SPY: side by side
| RR (Richtech Robotics Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -41.1% | +20.6% |
| 5-year return | n/a | +82.4% |
| Volatility (ann.) | 155.1% | 14.5% |
| Beta vs S&P 500 | 2.22 | 1.00 |
| Max drawdown (3Y) | -96.7% | -18.8% |
| Market cap | $0.4B | – |
| P/E (trailing) | 27.9 | – |
| Dividend yield | 0.00% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
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 | RR | SPY |
|---|---|---|
| 2022 | – | -18.2% |
| 2023 | – | +26.2% |
| 2024 | -54.6% | +24.9% |
| 2025 | +19.6% | +17.7% |
| 2026 | -39.6% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RR and SPY good diversifiers for each other?
A fair diversifier. At 0.21, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between RR and SPY?
Using weekly returns as of 2026-08-27: 0.21 over 3 years, with 0.46 over the last year and n/a over 5 years.
Is SPY a good diversifier for RR?
A fair diversifier. At 0.21, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.21 mean?
A reading of 0.21 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
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Related comparisons
Hubs: RR correlations · SPY correlations
