I am not asking what happens if I short shares but if I lend to others my shares. If the broker cannot buy those shares back, I face the risk of losing them, don't I?
So I am wondering: does using those brokers come with the risk that I end up owning nothing if I pick a very successful stock?
So I am wondering: does using those brokers come with the risk that I end up owning nothing if I pick a very successful stock?