don't know

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Related to don't know: don't know what to do

Don't know (DK, DKed)

"Don't know the trade." A Street expression used whenever one party lacks knowledge of a trade or receives conflicting instructions from the other party. Also, an unscrupulous claim made by one party denying that the trade had been agreed to and made after the trade goes adversely against that party.
Copyright © 2012, Campbell R. Harvey. All Rights Reserved.

Don't Know

Describing a trade that cannot be settled by a clearing house because the counterparties have contradictory or otherwise inconsistent information on the trade. The clearing house may become aware of the discrepancy by reviewing the comps the brokers gave one another, or by some other method. In this trade, it is said that one or both of the counterparties "does not know the trade."
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved

don't know (DK)

A broker-dealer response to a transaction report when the facts of the trade are in doubt or are unknown.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.
References in classic literature ?
She wants Evie to stay on, is begging her to, but she doesn't want me, and--and--I don't know what to do." Suddenly the poor child burst out crying.
Don't let your sober face elate you, however; you don't know what it may come to.
"It isn't that I grudge him that," he said, "although, with the other financial enterprises I have gone into, I don't know how I should raise half a million of money to pay him off.
You say you don't know. It may be true, but it doesn't sound like it."
"I don't know." Those words could be said in so many different tones, could carry so many meanings: I don't know, leave me alone.
Over the years, she's even incorporated it into her performance routine, as she once did when she spotted someone in the crowd of her show wearing a shirt that said her famous line: 'I don't know her.' Carey has answered plenty of questions about the meme since her famed interview with Taff, but her latest comments are the biggest attempt at an explanation that she's given so far.
The Press Association's latest poll of polls, which uses a rolling seven-day average of published polls, has Remain on 46 per cent, Leave on 42 per cent and Don't Know on 12 per cent.
* Unknown unknowns are things we don't know, but we don't know that we don't know them.
Gary, who walked off the show after controversial singer Rylan Clark was saved at the expense of his act Kye Sones, added: "I don't know if there is room in my diary for X Factor next year.
when I may die, I don't know why, this wrist now is without pain, I
I'm still so lost, I don't know who to phone or how to sort things out, but my friends have helped me so much and I don't know how I will ever repay them.

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