BMRA vs PERF: Correlation
Measured on weekly returns over the past three years, Biomerica, Inc. (BMRA) and Perfect Corp. Class A (PERF) carry a correlation of 0.35, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BMRA and PERF?
On 3 years of weekly data the BMRA/PERF correlation comes out at 0.35, moderate. Recent behaviour matches the longer record: 0.25 over 1 year against 0.35 over 3. The 5-year figure is 0.29, and annualized covariance runs at 1932.0 %².
By 3-year correlation, PERF places #4 of the 10 assets tracked against BMRA. Correlation aside, the last 12 months split them widely, with PERF ahead by 22.0 points (-33.3% versus -11.3%). Risk is not evenly split, since BMRA carries 1.7 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.
BMRA vs PERF: side by side
| BMRA (Biomerica, Inc.) | PERF (Perfect Corp. Class A) | |
|---|---|---|
| 1-year return | -33.3% | -11.3% |
| 5-year return | -94.0% | n/a |
| Volatility (ann.) | 97.9% | 56.3% |
| Beta vs S&P 500 | 1.49 | 0.93 |
| Max drawdown (3Y) | -88.7% | -67.5% |
| Market cap | – | $0.2B |
| P/E (trailing) | – | 31.3 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BMRA | PERF |
|---|---|---|
| 2022 | -13.9% | – |
| 2023 | -62.7% | -56.6% |
| 2024 | -76.0% | -8.7% |
| 2025 | +5.0% | -36.0% |
| 2026 | -16.7% | +3.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BMRA and PERF good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between BMRA and PERF?
Using weekly returns as of 2026-08-27: 0.35 over 3 years, with 0.25 over the last year and 0.29 over 5 years.
Is PERF a good diversifier for BMRA?
Yes, to a useful degree: a correlation of 0.35 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.35 mean?
A reading of 0.35 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: BMRA correlations · PERF correlations
