BESS vs MPAA: Correlation
Bimergen Energy Corporation (BESS) and Motorcar Parts of America, Inc. (MPAA) show a moderate relationship: their 3-year correlation of weekly returns is 0.51.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BESS and MPAA?
Across a 3-year window, the weekly returns of BESS and MPAA correlate at 0.51, moderate. The past 12 months show a weaker link (-0.05) than the 3-year average (0.51). Stretching to 5 years gives 0.41, with an annualized covariance of 182402.6 %².
Among the 51 assets we track against BESS, MPAA ranks #5 by 3-year correlation. The last year tells two different stories: MPAA led by 26.8 percentage points, -50.4% for BESS against -23.6% for MPAA. Note the risk asymmetry: BESS runs 73.9 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.
BESS vs MPAA: side by side
| BESS (Bimergen Energy Corporation) | MPAA (Motorcar Parts of America, Inc.) | |
|---|---|---|
| 1-year return | -50.4% | -23.6% |
| 5-year return | -87.7% | -42.5% |
| Volatility (ann.) | 5140.2% | 69.6% |
| Beta vs S&P 500 | 17.01 | 1.42 |
| Max drawdown (3Y) | -99.5% | -53.3% |
| Market cap | – | $0.2B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BESS | MPAA |
|---|---|---|
| 2022 | -30.0% | -30.5% |
| 2023 | -14.3% | -21.2% |
| 2024 | +16.7% | -18.6% |
| 2025 | +7.1% | +62.4% |
| 2026 | -70.5% | -7.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BESS and MPAA good diversifiers for each other?
Only partially. A correlation of 0.51 means BESS and MPAA share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between BESS and MPAA?
Using weekly returns as of 2026-08-27: 0.51 over 3 years, with -0.05 over the last year and 0.41 over 5 years.
Is MPAA a good diversifier for BESS?
Only partially. A correlation of 0.51 means BESS and MPAA share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.51 mean?
A reading of 0.51 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/bess-vs-mpaa.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bess-vs-mpaa/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BESS correlations · MPAA correlations
