Aster (ASTER) is 8177.1× the size of Zeta (ZEX) by market capitalisation. Their daily returns move barely in opposite directions (correlation -0.14 across 35 shared trading days). ZEX has been the more volatile of the two, at 276% annualised against ASTER's 90%.
ZEXASTER
-0.14over 35 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 | ZEX | ASTER |
|---|---|---|
| Max drawdown (400d) | -47.9% | -77.3% |
| Risk-adjusted return (90d) | 0.02 | 0.35 |
| Best 30 days (past year) | — | +47.6% |
| Worst 30 days (past year) | — | -51.6% |
Relative strength over 90 days: ZEX outperformed ASTER by 11.0% — measured on the ZEX/ASTER ratio, so it holds regardless of market direction.