Ethereum (ETH) is 3.0× the size of BNB (BNB) by market capitalisation. Over the past 1 year, BNB is ahead by 7.1 percentage points (ETH -36.9% against BNB -29.7%). Their daily returns move closely together (correlation 0.77 across 399 shared trading days). ETH has been the more volatile of the two, at 62% annualised against BNB's 51%.
ETHBNB
0.77over 399 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 | ETH | BNB |
|---|---|---|
| Max drawdown (400d) | -66.5% | -58.2% |
| Risk-adjusted return (90d) | 0.36 | 0.45 |
| Best 30 days (past year) | +34.1% | +29.4% |
| Worst 30 days (past year) | -44.6% | -34.9% |
Relative strength over 90 days: ETH outperformed BNB by 1.4% — measured on the ETH/BNB ratio, so it holds regardless of market direction.