CRDF vs QTI: Correlation
Measured on weekly returns over the past three years, Cardiff Oncology, Inc. (CRDF) and QT Imaging Holdings, Inc. (QTI) carry a correlation of -0.21, a negative link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CRDF and QTI?
Over the past 3 years, CRDF and QTI moved with a correlation of -0.21, which is negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (0.12) than the 3-year average (-0.21). Over 5 years the correlation is -0.16, and the annualized covariance of weekly returns is -2218.3 %².
Out of 13 assets tracked against CRDF, QTI lands near the bottom at #12. Their recent paths diverged sharply: over the last 12 months CRDF outperformed by 37.0 percentage points (-54.6% for CRDF 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.
CRDF vs QTI: side by side
| CRDF (Cardiff Oncology, Inc.) | QTI (QT Imaging Holdings, Inc.) | |
|---|---|---|
| 1-year return | -54.6% | -91.6% |
| 5-year return | -86.7% | -97.9% |
| Volatility (ann.) | 100.0% | 108.2% |
| Beta vs S&P 500 | 1.60 | 0.12 |
| Max drawdown (3Y) | -86.3% | -98.6% |
| Market cap | $0.1B | – |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CRDF | QTI |
|---|---|---|
| 2022 | -76.7% | +3.1% |
| 2023 | +5.7% | +7.7% |
| 2024 | +193.2% | -95.6% |
| 2025 | -35.3% | -16.7% |
| 2026 | -64.9% | -48.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CRDF and QTI good diversifiers for each other?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
FAQ
What is the correlation between CRDF and QTI?
The CRDF/QTI correlation stands at -0.21 on a 3-year window (1 year: 0.12, 5 years: -0.16), computed from weekly returns as of 2026-08-27.
Is QTI a good diversifier for CRDF?
Yes: at -0.21, the two have gone their own ways historically, which is what genuine diversification looks like.
What does a correlation of -0.21 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/crdf-vs-qti.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/crdf-vs-qti/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CRDF correlations · QTI correlations
