> I'd love is some sort of trade that would eliminate my exposure to SpaceX
You can just short SpaceX of an amount equivalent to its share of your SP500 holdings. You will have to pay borrowing costs though, but on something that liquid it will be very small.
Yeah you're not wrong. I didn't think about it that way because you can't really break something out of an ETF basket, and you also don't control the ETF basket, but if you think those risks are minimal it's probably fine to just compare dollars-to-dollars.
Personally I would still probably go with the long put strategy unless the price difference is exorbitant.
Yeah. For comparison, SpaceX will be maybe half the size of MSFT. MSFT is 7.4% of the SP500 index, so for a $1,000,000 portfolio if you were to short MSFT you'd pay 0.25% on the value of that 7.4%, or $185/year.
So eliminating SpaceX exposure will cost you $100 per million of your SP500 ETF per year, or so.
