Bitcoin (BTC) is 164264.7× the size of Xeffy (XEF) by market capitalisation. Their daily returns move barely in opposite directions (correlation -0.04 across 106 shared trading days). XEF has been the more volatile of the two, at 214% annualised against BTC's 44%.
XEFBTC
-0.04over 106 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 | XEF | BTC |
|---|---|---|
| Max drawdown (400d) | -84.4% | -53.0% |
| Risk-adjusted return (90d) | -0.16 | 0.51 |
| Best 30 days (past year) | — | +26.8% |
| Worst 30 days (past year) | — | -32.9% |
Relative strength over 90 days: BTC outperformed XEF by 53.4% — measured on the XEF/BTC ratio, so it holds regardless of market direction.