> Though presumably this will be arbitraged away quickly Only if the market believes they have the same fundamental value. Edit: well, if differences in price

> Though presumably this will be arbitraged away quickly Only if the market believes they have the same fundamental value. Edit: well, if differences in price stabilise then you might "arb" unequal price movements away, but it's still risky. The best you can probably do is bet generally on corellated movements, not fine-grained one-to-one matching.