Stock markets ended trading on Friday in red, after seeing some highs and lows during the week. The BSE Sensex settled more than 450 points lower at 72,485, while the NSE Nifty50 closed the session hanging above the 22K mark at 22,023, slipping 123 points. Indian currency also depreciated 4 paise to settle at 82.88 (provisional) against the American dollar on Friday, slipping further from 82.99 closing on Thursday.