round lot

round lot Word Origin noun Stock Exchange.

1. the conventional unit or quantity in which commodities or securities are bought and sold.
2. (in a transaction) a quantity of 100 shares of a stock that is active or 10 shares of a stock that is inactive.

Compare odd lot. Origin of round lot First recorded in 1900–05 Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019