When stocks "disappear" like that, it's usually due to a split. CHK recently had a 1 for 200 split, so unless you had more than 200 shares of CHK then your brok

When stocks "disappear" like that, it's usually due to a split. CHK recently had a 1 for 200 split, so unless you had more than 200 shares of CHK then your broker (Robinhood for gp) would sell them for you.