FLUX vs SPY: Correlation
Flux Power Holdings, Inc. (FLUX) and SPDR S&P 500 ETF Trust (SPY) show a weak relationship: their 3-year correlation of weekly returns is 0.23.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FLUX and SPY?
Across a 3-year window, the weekly returns of FLUX and SPY correlate at 0.23, weak. Recent behaviour matches the longer record: 0.20 over 1 year against 0.23 over 3. Stretching to 5 years gives 0.35, with an annualized covariance of 337.2 %².
SPY is close to the least connected end of FLUX's tracked universe, ranking #6 of 10. Their recent paths diverged sharply: over the last 12 months SPY outperformed by 82.1 percentage points (-61.5% for FLUX against +20.6% for SPY). One caveat on sizing: FLUX is 7.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
FLUX vs SPY: side by side
| FLUX (Flux Power Holdings, Inc.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | -61.5% | +20.6% |
| 5-year return | -92.4% | +82.4% |
| Volatility (ann.) | 103.0% | 14.5% |
| Beta vs S&P 500 | 1.61 | 1.00 |
| Max drawdown (3Y) | -92.3% | -18.8% |
| Market cap | – | – |
| P/E (trailing) | – | – |
| 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 | FLUX | SPY |
|---|---|---|
| 2022 | -7.5% | -18.2% |
| 2023 | +3.5% | +26.2% |
| 2024 | -61.6% | +24.9% |
| 2025 | -19.6% | +17.7% |
| 2026 | -49.7% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FLUX and SPY good diversifiers for each other?
A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between FLUX and SPY?
As of 2026-08-27, the correlation of weekly returns between FLUX and SPY is 0.23 over 3 years, 0.20 over 1 year and 0.35 over 5 years.
Is SPY a good diversifier for FLUX?
A fair diversifier. At 0.23, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.23 mean?
On the −1 to +1 scale, 0.23 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.
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Related comparisons
Hubs: FLUX correlations · SPY correlations
