DFTX vs QTI: Correlation
Definium Therapeutics, Inc. (DFTX) and QT Imaging Holdings, Inc. (QTI) show a negative relationship: their 3-year correlation of weekly returns is -0.24.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DFTX and QTI?
Across a 3-year window, the weekly returns of DFTX and QTI correlate at -0.24, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.05) than the 3-year average (-0.24). Stretching to 5 years gives -0.20, with an annualized covariance of -2377.1 %².
Out of 17 assets tracked against DFTX, QTI lands near the bottom at #16. The last year tells two different stories: DFTX led by 436.5 percentage points, +344.9% for DFTX against -91.6% for QTI.
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.
DFTX vs QTI: side by side
| DFTX (Definium Therapeutics, Inc.) | QTI (QT Imaging Holdings, Inc.) | |
|---|---|---|
| 1-year return | +344.9% | -91.6% |
| 5-year return | +4.7% | -97.9% |
| Volatility (ann.) | 90.9% | 108.2% |
| Beta vs S&P 500 | 1.35 | 0.12 |
| Max drawdown (3Y) | -58.4% | -98.6% |
| Market cap | $5.9B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | DFTX | QTI |
|---|---|---|
| 2022 | -89.4% | +3.1% |
| 2023 | +66.4% | +7.7% |
| 2024 | +90.2% | -95.6% |
| 2025 | +92.4% | -16.7% |
| 2026 | +227.3% | -48.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DFTX and QTI good diversifiers for each other?
Yes. With a correlation of -0.24, DFTX and QTI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
FAQ
What is the correlation between DFTX and QTI?
The DFTX/QTI correlation stands at -0.24 on a 3-year window (1 year: 0.05, 5 years: -0.20), computed from weekly returns as of 2026-08-27.
Is QTI a good diversifier for DFTX?
Yes. With a correlation of -0.24, DFTX and QTI have moved largely independently, which makes them a genuinely diversifying pair by historical standards.
What does a correlation of -0.24 mean?
A reading of -0.24 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/dftx-vs-qti.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/dftx-vs-qti/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: DFTX correlations · QTI correlations
