RE:My Broker closed my short in a U.S - No stocks in inventory trader 52, ask your Broker , you should know that answer yourself if your a "Trader" ! YOUR BD needs to borrow stock for them to short and pay it back when the trade is complete , either they pay more to replace the stock ( you lose ) or pay less (you profit) , and of course you have a margin account to do this ? Question , is EGZ/ENZR even a Marginable security ?