Naked short selling

Naked short selling, or naked shorting, is the practice of short-selling a tradable asset of any kind without first borrowing the security or ensuring that the security can be borrowed, as is conventionally done in a short sale. When the seller does not obtain the shares within the required time frame, the result is known as a "failure to deliver". The transaction generally remains open until the shares are acquired by the seller, or the seller's broker settles the trade.