Zcash (ZEC) is 4.0× the size of Bitcoin Cash (BCH) by market capitalisation. Over the past 1 year, ZEC is ahead by 226.7 percentage points (ZEC +181.0% against BCH -45.7%). Their daily returns move barely together (correlation 0.34 across 399 shared trading days). ZEC has been the more volatile of the two, at 149% annualised against BCH's 78%.
ZECBCH
0.34over 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 | ZEC | BCH |
|---|---|---|
| Max drawdown (400d) | -71.8% | -70.9% |
| Risk-adjusted return (90d) | 1.06 | 0.27 |
| Best 30 days (past year) | +188.2% | +34.0% |
| Worst 30 days (past year) | -59.2% | -56.8% |
Relative strength over 90 days: ZEC outperformed BCH by 86.0% — measured on the ZEC/BCH ratio, so it holds regardless of market direction.