I am selling call and put options that expire on the same day. For some reason option got assigned even if price close way below the strike price. Specifically, in the attached backtes.

I sold one two options QQQ 211222P00372000 and QQQ 211222C00391000 on 21-12-21. I have checked intraday price of QQQ and is closed at $389.21 which way below of 391 strike price. 

 Can someone please take a look and let me know why this was assigned?