CTMX vs SPWR: Correlation
Measured on weekly returns over the past three years, CytomX Therapeutics, Inc. (CTMX) and SunPower Inc. (SPWR) carry a correlation of 0.48, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CTMX and SPWR?
Over the past 3 years, CTMX and SPWR moved with a correlation of 0.48, which is moderate. The past 12 months show a weaker link (0.22) than the 3-year average (0.48). Over 5 years the correlation is 0.47, and the annualized covariance of weekly returns is 10625.4 %².
By 3-year correlation, SPWR places #4 of the 13 assets tracked against CTMX. Their recent paths diverged sharply: over the last 12 months CTMX outperformed by 145.6 percentage points (+65.2% for CTMX against -80.4% for SPWR).
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.
CTMX vs SPWR: side by side
| CTMX (CytomX Therapeutics, Inc.) | SPWR (SunPower Inc.) | |
|---|---|---|
| 1-year return | +65.2% | -80.4% |
| 5-year return | -32.5% | n/a |
| Volatility (ann.) | 151.3% | 146.1% |
| Beta vs S&P 500 | 2.53 | 1.97 |
| Max drawdown (3Y) | -91.6% | -92.9% |
| Market cap | $0.7B | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CTMX | SPWR |
|---|---|---|
| 2022 | -63.0% | – |
| 2023 | -3.1% | – |
| 2024 | -33.5% | +11.5% |
| 2025 | +313.6% | -12.3% |
| 2026 | -19.7% | -81.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CTMX and SPWR good diversifiers for each other?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
FAQ
What is the correlation between CTMX and SPWR?
As of 2026-08-27, the correlation of weekly returns between CTMX and SPWR is 0.48 over 3 years, 0.22 over 1 year and 0.47 over 5 years.
Is SPWR a good diversifier for CTMX?
Yes, to a useful degree: a correlation of 0.48 leaves real independence between the two, which historically damped combined volatility.
What does a correlation of 0.48 mean?
On the −1 to +1 scale, 0.48 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/ctmx-vs-spwr.json
Embed this badge (it refreshes with the data), with attribution:
[](https://www.pairbook.io/pair/ctmx-vs-spwr/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: CTMX correlations · SPWR correlations
