Lock

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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 ?
ISLAMABAD -- Islamabad High Court (IHC) Wednesday disposed off a plea against the decision of single bench restraining Pakistan Tehreek e Insaf (PTI) from locking down the city.
Hundreds of soldiers lined entrances to downtown Beirut early on Wednesday, locking down the area home to the parliament building where the dialogue was due to begin at 11 a.m.
Many ended up reviewing plans in place, which primarily focus on locking down a school until police arrive, which is what happened at Sandy Hook and Friday in Colorado, where a teen gunman opened fire at a high school.
"We will be locking down the Moulton Paddocks stables with immediate effect."