Lock

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Related to locks horns: lock onto, pull in horns, toot own horn, toot his own horn

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 gelding was clear when crashing into the final fence, but still held his rival, who locks horns again today, by two and a half lengths.
Hatton locks horns with the division's undisputed number one at a sell-out MEN Arena on Saturday in a contest scheduled to start at 2am.
A FESTIVAL reveller keeps his cool as he locks horns with a 95-stone beast at the running of the bulls in Pamplona yesterday.