Buy To Close
A term used by many brokerages to represent the closing of a short position in option transactions. Investopedia Says:
Investor can buy to close either (or a combination of) puts or calls, and thus will be relinquishing obligations associated with the option(s). The distinguishing factor of a buy to close is that the option position must have been held short in the account during the transaction. Related Terms:
Buy
Buy to Open
Call
Long
Open Interest
Option
Put
Sell to Close
Sell to Open
Short |