is BSFT option. I bought 22.5 call in the day of 50% haircut. I was not professional. I should wait for a bottom. when it started to tank next day. I dumped, nothing gained (initial gained 40%) and bought put 22.5 (gained 50%), wait for it break 20, late it turned around, sold with nothing gained. then forget to buy 22.5 call and watch it shoot.