BOLD vs DFTX: Correlation
Measured on weekly returns over the past three years, Boundless Bio, Inc. (BOLD) and Definium Therapeutics, Inc. (DFTX) carry a correlation of 0.51, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are BOLD and DFTX?
On 3 years of weekly data the BOLD/DFTX correlation comes out at 0.51, moderate. Lately the two have moved closer together, with the 1-year correlation at 0.76 versus 0.51 over 3 years. The 5-year figure is n/a, and annualized covariance runs at 4034.6 %².
Few assets follow BOLD as closely as DFTX, which ranks #1 of 18 tracked partners. Correlation aside, the last 12 months split them widely, with DFTX ahead by 194.0 points (+150.9% versus +344.9%).
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 DFTX: side by side
| BOLD (Boundless Bio, Inc.) | DFTX (Definium Therapeutics, Inc.) | |
|---|---|---|
| 1-year return | +150.9% | +344.9% |
| 5-year return | n/a | +4.7% |
| Volatility (ann.) | 90.9% | 90.9% |
| Beta vs S&P 500 | 1.60 | 1.35 |
| Max drawdown (3Y) | -92.9% | -58.4% |
| Market cap | $0.1B | $5.9B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | BOLD | DFTX |
|---|---|---|
| 2022 | – | -89.4% |
| 2023 | – | +66.4% |
| 2024 | – | +90.2% |
| 2025 | -58.6% | +92.4% |
| 2026 | +138.3% | +227.3% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are BOLD and DFTX good diversifiers for each other?
To a limited degree. At 0.51 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
FAQ
What is the correlation between BOLD and DFTX?
The BOLD/DFTX correlation stands at 0.51 on a 3-year window (1 year: 0.76, 5 years: n/a), computed from weekly returns as of 2026-08-27.
Is DFTX a good diversifier for BOLD?
To a limited degree. At 0.51 the two still catch most of the same waves, so the pair smooths returns a little without insulating either from a shared selloff.
What does a correlation of 0.51 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/bold-vs-dftx.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/bold-vs-dftx/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: BOLD correlations · DFTX correlations
