Open Campus (EDU) is 18.2× the size of XIIID (XIIID) by market capitalisation. Their daily returns move loosely in opposite directions (correlation -0.48 across 41 shared trading days). EDU has been the more volatile of the two, at 126% annualised against XIIID's 109%.
EDUXIIID
-0.48over 41 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 | EDU | XIIID |
|---|---|---|
| Max drawdown (400d) | -87.8% | -31.5% |
| Risk-adjusted return (90d) | 0.66 | -0.15 |
| Best 30 days (past year) | +70.0% | — |
| Worst 30 days (past year) | -55.0% | — |
Relative strength over 90 days: EDU outperformed XIIID by 32.0% — measured on the EDU/XIIID ratio, so it holds regardless of market direction.