CCCC vs FUSB: Correlation
C4 Therapeutics, Inc. (CCCC) and First US Bancshares, Inc. (FUSB) show a weak relationship: their 3-year correlation of weekly returns is 0.29.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are CCCC and FUSB?
Over the past 3 years, CCCC and FUSB moved with a correlation of 0.29, which is weak. Recent behaviour matches the longer record: 0.28 over 1 year against 0.29 over 3. Over 5 years the correlation is 0.17, and the annualized covariance of weekly returns is 1385.4 %².
Among the 19 assets we track against CCCC, FUSB ranks #12 by 3-year correlation. Their 12-month results are close: +58.9% for CCCC against +54.3% for FUSB. One caveat on sizing: CCCC is 7.1 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
CCCC vs FUSB: side by side
| CCCC (C4 Therapeutics, Inc.) | FUSB (First US Bancshares, Inc.) | |
|---|---|---|
| 1-year return | +58.9% | +54.3% |
| 5-year return | -90.1% | +66.8% |
| Volatility (ann.) | 184.7% | 26.1% |
| Beta vs S&P 500 | 3.22 | 0.21 |
| Max drawdown (3Y) | -90.0% | -23.2% |
| Market cap | $0.5B | $0.1B |
| P/E (trailing) | – | 12.4 |
| Dividend yield | 0.00% | 1.70% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | CCCC | FUSB |
|---|---|---|
| 2022 | -81.7% | -16.7% |
| 2023 | -4.2% | +21.6% |
| 2024 | -36.3% | +24.5% |
| 2025 | -46.9% | +13.4% |
| 2026 | +114.7% | +18.1% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are CCCC and FUSB good diversifiers for each other?
Reasonably. At 0.29, CCCC and FUSB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between CCCC and FUSB?
Using weekly returns as of 2026-08-27: 0.29 over 3 years, with 0.28 over the last year and 0.17 over 5 years.
Is FUSB a good diversifier for CCCC?
Reasonably. At 0.29, CCCC and FUSB keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.29 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/cccc-vs-fusb.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/cccc-vs-fusb/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: CCCC correlations · FUSB correlations
