Lock

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Related to lock up: Lock up period

Lock

Used in the context of general equities. Make a market both ways (bid andoffer) either on the bid, offering, or an in-between price only. Locking on the offering occurs to attract a seller, since the trader is willing to pay (and ask) the offering side when others only ask it. Locking on the bid side attracts buyers for similar reasons. Typically, the sell side requires a plus tick to comply with short sale rules.
References in periodicals archive ?
The lock ups we have negotiated should provide the underpinning to an orderly market for Medical Technology shareholders," said Feakins.
ISLAMABAD, December 19, 2010 (Balochistan Times): Islamabad Police take all possible step to ensure protection of basic rights to inmates in lock up so that they should not become habitual criminals and merge in normal society gently with the commitment not to become part of any criminal activity in future.
CPR" (for "Computer Program Reactivator") reactivates a PC when programs lock up or stop responding.
Renew Lock Up Garage Doors And Standards Numbers1,2,3,4,5,6,7,8,9,10,11,13,14,15.