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Comment on Groupon shares open up 40%parent

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You can't yet.

What are the rules determining when you can? (I'm rather uneducated on markets).

I don't know the exact rules, but it usually takes a couple weeks for the OCC to register the options with the CFTC. Then trading can begin. So, mid-Novemberish.

With such a small float, put-call parity isn't going to exist - the cost of borrowing the stock is going to make buying puts pretty pricey.

I feel sorry for the people who bought puts on LNKD, which also had a tiny float.

yeah. just noticed it's not showing up on ISE

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