Buying in (securities)
In the securities market, buying in refers to a process by which the buyer of securities, whose seller fails to deliver the securities contracted for, can buy the securities from a third party and demand the difference in price from the original seller. Thus, the original seller need not deliver the sold security, but must provide the cash difference of the security sold. A buy in event occurs when the original counterparty, the seller, fails to make delivery on the actual security transacted.
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