PHGE vs WRBY: Correlation
Measured on weekly returns over the past three years, BiomX Inc. (PHGE) and Warby Parker Inc. (WRBY) carry a correlation of -0.27, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PHGE and WRBY?
On 3 years of weekly data the PHGE/WRBY correlation comes out at -0.27, negative, meaning they tend to move in opposite directions. The link has loosened recently: the 1-year correlation (-0.39) runs below the 3-year figure (-0.27). The 5-year figure is -0.10, and annualized covariance runs at -2496.3 %².
WRBY is close to the least connected end of PHGE's tracked universe, ranking #20 of 21. Their recent paths diverged sharply: over the last 12 months WRBY outperformed by 94.0 percentage points (-98.7% for PHGE against -4.7% for WRBY). Note the risk asymmetry: PHGE runs 2.4 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.
PHGE vs WRBY: side by side
| PHGE (BiomX Inc.) | WRBY (Warby Parker Inc.) | |
|---|---|---|
| 1-year return | -98.7% | -4.7% |
| 5-year return | -100.0% | -53.6% |
| Volatility (ann.) | 147.0% | 62.2% |
| Beta vs S&P 500 | 0.33 | 1.49 |
| Max drawdown (3Y) | -99.9% | -50.7% |
| Market cap | – | $3.1B |
| P/E (trailing) | – | 421.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PHGE | WRBY |
|---|---|---|
| 2022 | -88.3% | -71.0% |
| 2023 | +49.7% | +4.5% |
| 2024 | -73.9% | +71.7% |
| 2025 | -86.5% | -10.0% |
| 2026 | -92.9% | +16.0% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PHGE and WRBY good diversifiers for each other?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between PHGE and WRBY?
Using weekly returns as of 2026-08-27: -0.27 over 3 years, with -0.39 over the last year and -0.10 over 5 years.
Is WRBY a good diversifier for PHGE?
Yes: at -0.27, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.27 mean?
A reading of -0.27 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/phge-vs-wrby.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/phge-vs-wrby/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PHGE correlations · WRBY correlations
