Cortex (CX) is 506.2× the size of Surf (SURF) by market capitalisation. Their daily returns move barely together (correlation 0.08 across 29 shared trading days). CX has been the more volatile of the two, at 1204% annualised against SURF's 112%.
SURFCX
0.08over 29 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 | SURF | CX |
|---|---|---|
| Max drawdown (400d) | -57.5% | -80.0% |
| Risk-adjusted return (90d) | 0.09 | 0.05 |
Relative strength over 90 days: CX outperformed SURF by 54.3% — measured on the SURF/CX ratio, so it holds regardless of market direction.