PROK vs QTTB: Correlation
How closely do ProKidney Corp. - Class A (PROK) and Q32 Bio Inc. (QTTB) trade together? Their weekly returns over three years give a correlation of 0.41, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are PROK and QTTB?
Across a 3-year window, the weekly returns of PROK and QTTB correlate at 0.41, moderate. The link has loosened recently: the 1-year correlation (0.14) runs below the 3-year figure (0.41). Stretching to 5 years gives 0.35, with an annualized covariance of 20591.7 %².
By 3-year correlation, QTTB places #11 of the 21 assets tracked against PROK. Correlation aside, the last 12 months split them widely, with QTTB ahead by 865.9 points (-26.9% versus +839.0%). Risk is not evenly split, since PROK carries 2.7 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.
PROK vs QTTB: side by side
| PROK (ProKidney Corp. - Class A) | QTTB (Q32 Bio Inc.) | |
|---|---|---|
| 1-year return | -26.9% | +839.0% |
| 5-year return | -81.3% | -87.4% |
| Volatility (ann.) | 368.1% | 134.9% |
| Beta vs S&P 500 | 2.21 | 0.12 |
| Max drawdown (3Y) | -94.3% | -97.3% |
| Market cap | $0.7B | $0.5B |
| P/E (trailing) | – | 5.2 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | PROK | QTTB |
|---|---|---|
| 2022 | -30.7% | -65.4% |
| 2023 | -74.1% | -51.7% |
| 2024 | -5.1% | -68.6% |
| 2025 | +32.5% | -3.5% |
| 2026 | -18.7% | +386.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are PROK and QTTB good diversifiers for each other?
Reasonably. At 0.41, PROK and QTTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between PROK and QTTB?
The PROK/QTTB correlation stands at 0.41 on a 3-year window (1 year: 0.14, 5 years: 0.35), computed from weekly returns as of 2026-08-27.
Is QTTB a good diversifier for PROK?
Reasonably. At 0.41, PROK and QTTB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.41 mean?
A reading of 0.41 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/prok-vs-qttb.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/prok-vs-qttb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: PROK correlations · QTTB correlations
