BIAF vs PHI: Correlation
bioAffinity Technologies, Inc. (BIAF) and PLDT Inc. Sponsored ADR (PHI) show a negative relationship: their 3-year correlation of weekly returns is -0.20.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BIAF and PHI?
Over the past 3 years, BIAF and PHI moved with a correlation of -0.20, which is negative, meaning they tend to move in opposite directions. Lately the two have drifted apart, with the 1-year correlation at -0.33 versus -0.20 over 3 years. Over 5 years the correlation is -0.15, and the annualized covariance of weekly returns is -3382.6 %².
Within BIAF's tracked universe of 24 assets, PHI comes in at #15 by 3-year correlation. Correlation aside, the last 12 months split them widely, with PHI ahead by 23.8 points (-32.0% versus -8.2%). Risk is not evenly split, since BIAF carries 28.8 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.
BIAF vs PHI: side by side
| BIAF (bioAffinity Technologies, Inc.) | PHI (PLDT Inc. Sponsored ADR) | |
|---|---|---|
| 1-year return | -32.0% | -8.2% |
| 5-year return | n/a | -17.6% |
| Volatility (ann.) | 691.4% | 24.0% |
| Beta vs S&P 500 | -2.10 | 0.22 |
| Max drawdown (3Y) | -99.6% | -33.7% |
| Market cap | – | – |
| P/E (trailing) | – | 9.4 |
| Dividend yield | 0.00% | 494.13% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BIAF | PHI |
|---|---|---|
| 2022 | – | -31.7% |
| 2023 | -8.1% | +11.9% |
| 2024 | -38.1% | +0.8% |
| 2025 | -95.7% | +1.5% |
| 2026 | +328.8% | -14.6% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BIAF and PHI good diversifiers for each other?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BIAF and PHI?
As of 2026-08-27, the correlation of weekly returns between BIAF and PHI is -0.20 over 3 years, -0.33 over 1 year and -0.15 over 5 years.
Is PHI a good diversifier for BIAF?
Yes: at -0.20, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.20 mean?
On the −1 to +1 scale, -0.20 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.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/biaf-vs-phi.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/biaf-vs-phi/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BIAF correlations · PHI correlations
