USDC (USDC) is 81315.1× the size of Chain-key USDT (CKUSDT) by market capitalisation. Their daily returns move barely in opposite directions (correlation -0.05 across 270 shared trading days). CKUSDT has been the more volatile of the two, at 12% annualised against USDC's 0%.
CKUSDTUSDC
-0.05over 270 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 | CKUSDT | USDC |
|---|---|---|
| Max drawdown (400d) | -8.4% | -0.3% |
| Risk-adjusted return (90d) | 0.15 | 0.05 |
| Best 30 days (past year) | — | +0.2% |
| Worst 30 days (past year) | — | -0.2% |
Relative strength over 90 days: CKUSDT outperformed USDC by 0.3% — measured on the CKUSDT/USDC ratio, so it holds regardless of market direction.