Off book definition

An ‘off-book’ trade refers to a stock trade that is executed away from the exchange, via the OTC market.

Usually, a trade price is agreed between two parties and then one of the two trade participants will report both sides of the trade to the market in order to bring the execution ‘on exchange’. This reporting process can be delayed up to a specified time, according to the exchange’s parameters, and doesn’t have to be immediate.

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