What is going to happen to my stock when my stock broker was bankrupted ?

For example, I purchased some stocks through on-line stock trading company. And one day, that company was gone.... If this happened, how can I insist that I do have a stock ?|||receipts and monthly statements are proof of ownership, if nothing else. if the company was part of SIPC, your shares will ultiamtley be transferred to some other broker.|||In the U.S., customer accounts are insured against broker failure or malfeasance by SIPC.