Piece(redirected from a piece of (one's) mind)
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Part of a block or exceptionally large amount or value of securities. While there is no specific definition of how many shares constitute a block, most people using the term refer to holding or trading more than 10,000 shares and/or shares worth more than $200,000. A piece is any section of this bought or sold separately from the rest of the block.
A part of a large security offering.