Who buys options on expiry?

Hey there everybody, I have a question.

My question is that everybody knows that OTM contracts are going to become worthless on expiry, yet I see lakhs of people buying those contracts on expiry day and that too after 2 PM.

I don’t understand who are these people? Is there something I am missing?

In the absence of time, theta as a major force is absent. This gives gamma more power especially when his friend Vega comes over.

Gamma scalping with limited loss- better Risk-reward and almost 0 POP is what drives these bunch of expiry traders.

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People who are closing their short open positions??

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Yes, absolutely- as with any hedged trade.

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