BBW vs BIAF: Correlation
Measured on weekly returns over the past three years, Build-A-Bear Workshop, Inc. (BBW) and bioAffinity Technologies, Inc. (BIAF) carry a correlation of -0.32, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BBW and BIAF?
Across a 3-year window, the weekly returns of BBW and BIAF correlate at -0.32, negative, meaning they tend to move in opposite directions. The past 12 months show a weaker link (-0.48) than the 3-year average (-0.32). Stretching to 5 years gives -0.27, with an annualized covariance of -10621.7 %².
BIAF is close to the least connected end of BBW's tracked universe, ranking #16 of 16. The last year tells two different stories: BIAF led by 18.4 percentage points, -50.4% for BBW against -32.0% for BIAF. Risk is not evenly split, since BIAF carries 14.3 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.
BBW vs BIAF: side by side
| BBW (Build-A-Bear Workshop, Inc.) | BIAF (bioAffinity Technologies, Inc.) | |
|---|---|---|
| 1-year return | -50.4% | -32.0% |
| 5-year return | +86.4% | n/a |
| Volatility (ann.) | 48.4% | 691.4% |
| Beta vs S&P 500 | 0.89 | -2.10 |
| Max drawdown (3Y) | -61.7% | -99.6% |
| Market cap | – | – |
| P/E (trailing) | 9.1 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BBW | BIAF |
|---|---|---|
| 2022 | +22.1% | – |
| 2023 | +2.8% | -8.1% |
| 2024 | +105.6% | -38.1% |
| 2025 | +35.4% | -95.7% |
| 2026 | -53.0% | +328.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BBW and BIAF good diversifiers for each other?
Yes: at -0.32, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between BBW and BIAF?
As of 2026-08-27, the correlation of weekly returns between BBW and BIAF is -0.32 over 3 years, -0.48 over 1 year and -0.27 over 5 years.
Is BIAF a good diversifier for BBW?
Yes: at -0.32, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.32 mean?
On the −1 to +1 scale, -0.32 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/bbw-vs-biaf.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/bbw-vs-biaf/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BBW correlations · BIAF correlations
