Birb (BIRB) and Tether (USDT) compared side by side. Over the past 30 days, USDT is ahead by 8.6 percentage points (BIRB -8.7% against USDT -0.1%). Their daily returns move closely together (correlation 0.65 across 20 shared trading days). BIRB has been the more volatile of the two, at 58% annualised against USDT's 1%.
BIRBUSDT
0.65over 20 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 | BIRB | USDT |
|---|---|---|
| Max drawdown (400d) | -17.4% | -0.2% |
| Risk-adjusted return (90d) | -0.15 | -0.03 |
Relative strength over 90 days: USDT outperformed BIRB by 8.5% — measured on the BIRB/USDT ratio, so it holds regardless of market direction.