Rain (RAIN) is 497584.1× the size of MatrixETF (MDF) by market capitalisation. Their daily returns move barely together (correlation 0.07 across 45 shared trading days). RAIN has been the more volatile of the two, at 135% annualised against MDF's 42%.
MDFRAIN
0.07over 45 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 | MDF | RAIN |
|---|---|---|
| Max drawdown (400d) | -50.1% | -69.3% |
| Risk-adjusted return (90d) | -0.48 | -0.40 |
| Best 30 days (past year) | +3.5% | — |
| Worst 30 days (past year) | -35.5% | — |
Relative strength over 90 days: MDF outperformed RAIN by 42.0% — measured on the MDF/RAIN ratio, so it holds regardless of market direction.