Delete row ('521', '20731') from daily_volatility

ticker_id 521
day 20731
implied_open 0.3032031002480021
implied_high 0.3206650589010284
implied_low 0.2889160431682533
implied_close 0.2984407478880858
historical_open 0.2349427164225357
historical_high 0.2349427164225357
historical_low 0.2349427164225357
historical_close 0.2349427164225357
Cancel