BOLD vs RDY: Correlation
Boundless Bio, Inc. (BOLD) and Dr. Reddy's Laboratories Ltd (RDY) show a moderate relationship: their 3-year correlation of weekly returns is 0.37.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BOLD and RDY?
Across a 3-year window, the weekly returns of BOLD and RDY correlate at 0.37, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.57 versus 0.37 over 3 years. Stretching to 5 years gives n/a, with an annualized covariance of 855.8 %².
By 3-year correlation, RDY places #11 of the 18 assets tracked against BOLD. The last year tells two different stories: BOLD led by 164.9 percentage points, +150.9% for BOLD against -14.0% for RDY. Note the risk asymmetry: BOLD runs 3.8 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.
BOLD vs RDY: side by side
| BOLD (Boundless Bio, Inc.) | RDY (Dr. Reddy's Laboratories Ltd) | |
|---|---|---|
| 1-year return | +150.9% | -14.0% |
| 5-year return | n/a | +1.0% |
| Volatility (ann.) | 90.9% | 23.9% |
| Beta vs S&P 500 | 1.60 | 0.32 |
| Max drawdown (3Y) | -92.9% | -32.0% |
| Market cap | $0.1B | $10.1B |
| P/E (trailing) | – | 29.0 |
| Dividend yield | 0.00% | 65.47% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BOLD | RDY |
|---|---|---|
| 2022 | – | -19.7% |
| 2023 | – | +36.5% |
| 2024 | – | +14.1% |
| 2025 | -58.6% | -10.5% |
| 2026 | +138.3% | -12.8% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BOLD and RDY good diversifiers for each other?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
FAQ
What is the correlation between BOLD and RDY?
Using weekly returns as of 2026-08-27: 0.37 over 3 years, with 0.57 over the last year and n/a over 5 years.
Is RDY a good diversifier for BOLD?
A fair diversifier. At 0.37, enough of each asset's movement is its own that the pair has smoothed outcomes historically.
What does a correlation of 0.37 mean?
On the −1 to +1 scale, 0.37 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/bold-vs-rdy.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/bold-vs-rdy/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: BOLD correlations · RDY correlations
