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Can I profit from selling a PUT on BBY?
The time when you might want to do this is if you think BBY is undervalued already.  If you'd be happy buying the stock now, you'd be happy buying it lower (at the strike price of the put option you sold).  If the stock doesn't go down, you win.  If it does, you still win, because you get the stock at the strike price. If I recall correctly Warren Buffett did this with Coca-Cola.  But that's Warren Buffett.