IDYA vs PLRX: Correlation
How closely do IDEAYA Biosciences, Inc. (IDYA) and Pliant Therapeutics, Inc. (PLRX) trade together? Their weekly returns over three years give a correlation of 0.49, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are IDYA and PLRX?
Over the past 3 years, IDYA and PLRX moved with a correlation of 0.49, which is moderate. Recent behaviour matches the longer record: 0.44 over 1 year against 0.49 over 3. Over 5 years the correlation is 0.29, and the annualized covariance of weekly returns is 1668.1 %².
By 3-year correlation, PLRX places #12 of the 23 assets tracked against IDYA. Their recent paths diverged sharply: over the last 12 months IDYA outperformed by 99.1 percentage points (+67.1% for IDYA against -32.0% for PLRX). Note the risk asymmetry: PLRX runs 1.7 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
IDYA vs PLRX: side by side
| IDYA (IDEAYA Biosciences, Inc.) | PLRX (Pliant Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | +67.1% | -32.0% |
| 5-year return | +82.5% | -93.6% |
| Volatility (ann.) | 45.3% | 74.8% |
| Beta vs S&P 500 | 1.37 | 1.32 |
| Max drawdown (3Y) | -69.2% | -94.7% |
| Market cap | $4.0B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | IDYA | PLRX |
|---|---|---|
| 2022 | -23.1% | +43.2% |
| 2023 | +95.8% | -6.3% |
| 2024 | -27.8% | -27.3% |
| 2025 | +34.5% | -90.7% |
| 2026 | +20.8% | -5.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are IDYA and PLRX good diversifiers for each other?
Reasonably. At 0.49, IDYA and PLRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between IDYA and PLRX?
As of 2026-08-27, the correlation of weekly returns between IDYA and PLRX is 0.49 over 3 years, 0.44 over 1 year and 0.29 over 5 years.
Is PLRX a good diversifier for IDYA?
Reasonably. At 0.49, IDYA and PLRX keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.49 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/idya-vs-plrx.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/idya-vs-plrx/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: IDYA correlations · PLRX correlations
