KRRO vs PRQR: Correlation
Korro Bio, Inc. (KRRO) and ProQR Therapeutics N.V. (PRQR) show a moderate relationship: their 3-year correlation of weekly returns is 0.47.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are KRRO and PRQR?
Across a 3-year window, the weekly returns of KRRO and PRQR correlate at 0.47, moderate. The past 12 months show a weaker link (0.29) than the 3-year average (0.47). Stretching to 5 years gives 0.36, with an annualized covariance of 8224.0 %².
PRQR is one of the assets that tracks KRRO most closely: it ranks #1 out of the 16 assets we track against KRRO. Correlation aside, the last 12 months split them widely, with PRQR ahead by 43.6 points (-38.6% versus +5.0%). One caveat on sizing: KRRO is 1.6 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
KRRO vs PRQR: side by side
| KRRO (Korro Bio, Inc.) | PRQR (ProQR Therapeutics N.V.) | |
|---|---|---|
| 1-year return | -38.6% | +5.0% |
| 5-year return | -96.6% | -64.2% |
| Volatility (ann.) | 166.3% | 104.9% |
| Beta vs S&P 500 | 3.17 | 1.98 |
| Max drawdown (3Y) | -94.1% | -75.1% |
| Market cap | $0.2B | $0.3B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | KRRO | PRQR |
|---|---|---|
| 2022 | -25.0% | -53.8% |
| 2023 | -75.1% | -46.5% |
| 2024 | -20.6% | +33.8% |
| 2025 | -79.0% | -23.8% |
| 2026 | +65.5% | +14.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are KRRO and PRQR good diversifiers for each other?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between KRRO and PRQR?
The KRRO/PRQR correlation stands at 0.47 on a 3-year window (1 year: 0.29, 5 years: 0.36), computed from weekly returns as of 2026-08-27.
Is PRQR a good diversifier for KRRO?
A fair diversifier. At 0.47, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.47 mean?
A reading of 0.47 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/krro-vs-prqr.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/krro-vs-prqr/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: KRRO correlations · PRQR correlations
