You figure whatever rookie trader they got working TRPH is spending time reading filings and news and trying to decide what it's happening, while he works a pile of other stuff at the same time?
I think not. He sits in front of the monitors and watches the numbers, that's it and tries to pick up order flow.
What happens if I maintain a short position in a stock that is delisted and declares bankruptcy?
The short seller owes nada. Nil. Zip. Zero.
When you short sell you borrow the shares, sell them on the market, and then collect the proceeds as cash. If you wanted to get out of the position, you would have to buy back the same number of shares to repay the person (or brokerage) from whom you borrowed them. If you buy back the shares at a price lower than the price at which you originally sold them, you collect the difference - so short selling is a way to profit from a falling stock. But if the company is delisted and bankrupt, you don't have to pay back anyone because the shares are worthless.
Note: This is the best possible scenario for a short seller.