This has never happened to me. I sold 122 puts on YY last week and the stock closed at 121.85.
I was only assigned two out of the 10 contracts I sold. I thought assignment was required but apparently not and the buyer of my puts apparently wanted to be short the stock this morning.
Bad for them, YY is trading up to 125. Anybody ever not had stock put to them when the put option expires in the money?
Good for them. Bad for you.
You could have been long stock at 122-your put premium and could have sold that stock at 125.
