Has anyone ever held a long stock position in SPY and hedged it with $XSP options, e.g., a short call, or a long put, or both? I get the fact that it is not a perfect hedge, because $XSP options are cash-settled. And $XSP is a mathematical construct that is exactly one tenth of $SPX, except for some very minor differences due to rounding. SPY is not one tenth of $SPX. It is something else. There is always a small but mathematically significant difference between the value of SPY and the value of $XSP, and it is not due to rounding. It has to do with how SPY handles dividends. It is technically tracking error in SPY. And in a retail account, the broker will treat a short $XSP call as a naked short for margin calculations. Even if you are long SPY, it's not a covered call. $XSP is an index option, so it is impossible to be long the underlying security. I get all that. However, if you can handle the margin requirement, it feels like it would be a viable hedging strategy, that some might like to use instead of SPY options, because, among other things, it eliminates the possibility of early assignment. Any thoughts on this?