USDC (USDC) is 770775.6× the size of USDX (USDX) by market capitalisation. Their daily returns move barely together (correlation 0.26 across 37 shared trading days). USDX has been the more volatile of the two, at 3% annualised against USDC's 0%.
USDXUSDC
0.26over 37 shared trading days
Measured on daily returns rather than on prices. Two assets that both simply trend upward score near 1.0 on raw prices whether or not they move together, so returns are what answer the question people mean by correlation.
| Metric | USDX | USDC |
|---|---|---|
| Max drawdown (400d) | -0.1% | -0.3% |
| Risk-adjusted return (90d) | 0.26 | 0.01 |
| Best 30 days (past year) | — | +0.2% |
| Worst 30 days (past year) | — | -0.2% |
Relative strength over 90 days: USDX outperformed USDC by 0.8% — measured on the USDX/USDC ratio, so it holds regardless of market direction.