BOLT vs SRZN: Correlation
How closely do Bolt Biotherapeutics, Inc. (BOLT) and Surrozen, Inc. (SRZN) trade together? Their weekly returns over three years give a correlation of 0.35, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BOLT and SRZN?
Across a 3-year window, the weekly returns of BOLT and SRZN correlate at 0.35, moderate. Little has changed lately, as the 1-year reading of 0.25 lands near the 3-year figure. Stretching to 5 years gives 0.27, with an annualized covariance of 1736.0 %².
SRZN is one of the assets that tracks BOLT most closely: it ranks #2 out of the 12 assets we track against BOLT. Correlation aside, the last 12 months split them widely, with SRZN ahead by 135.8 points (-25.2% versus +110.6%).
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.
BOLT vs SRZN: side by side
| BOLT (Bolt Biotherapeutics, Inc.) | SRZN (Surrozen, Inc.) | |
|---|---|---|
| 1-year return | -25.2% | +110.6% |
| 5-year return | -98.8% | -80.6% |
| Volatility (ann.) | 58.4% | 85.6% |
| Beta vs S&P 500 | 0.45 | 0.14 |
| Max drawdown (3Y) | -89.4% | -61.8% |
| Market cap | – | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BOLT | SRZN |
|---|---|---|
| 2022 | -73.5% | -91.0% |
| 2023 | -13.8% | +7.7% |
| 2024 | -52.2% | +52.7% |
| 2025 | -48.9% | +57.5% |
| 2026 | -26.8% | +6.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BOLT and SRZN good diversifiers for each other?
Reasonably. At 0.35, BOLT and SRZN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between BOLT and SRZN?
Using weekly returns as of 2026-08-27: 0.35 over 3 years, with 0.25 over the last year and 0.27 over 5 years.
Is SRZN a good diversifier for BOLT?
Reasonably. At 0.35, BOLT and SRZN keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.35 mean?
On the −1 to +1 scale, 0.35 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.
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Related comparisons
Hubs: BOLT correlations · SRZN correlations
