buy in

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Buy in

To cover, offset, or close out a short position. Related: Evening up, liquidation.

Buy In

To buy the same security a second time because the seller did not deliver in a timely manner the first time. In a buy in, the buyer informs the exchange of the delivery failure; if the second transaction is more expensive, the original seller must pay the difference.

buy in

The purchase by one broker of securities that another broker has failed to deliver on time.