Purr (PURR) is 855.9× the size of Cat (CAT) by market capitalisation. Over the past 30 days, PURR is ahead by 22.3 percentage points (CAT -13.9% against PURR +8.4%). Their daily returns move barely together (correlation 0.31 across 21 shared trading days). PURR has been the more volatile of the two, at 222% annualised against CAT's 43%.
CATPURR
0.31over 21 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 | CAT | PURR |
|---|---|---|
| Max drawdown (400d) | -17.4% | -43.9% |
| Risk-adjusted return (90d) | -0.30 | 0.10 |
Relative strength over 90 days: PURR outperformed CAT by 13.4% — measured on the CAT/PURR ratio, so it holds regardless of market direction.