round lot

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.

Word History and Origins

Origin of round lot¹

First recorded in 1900–05

Example Sentences

While you can walk straight up to the site via a flight of stairs from the small parking lot adjacent to Merry Go Round Lot 2, you can also reach it from above by hiking the easy 1.5 mile loop that diverges from the Fern Canyon Trailhead near Merry Go Round Lot 1.

From Los Angeles Times

A few hundred dollars wouldn’t buy the 100-share “round lot” needed to get reduced commissions.

From Seattle Times

A few hundred dollars might buy a few dozen shares, but not the “round lot” of 100 necessary to get commission discounts.

From Seattle Times

Stock splits have historically been used to decrease the amount an investor would have to spend in order to buy a “round lot” or 100 shares.

From Forbes

While buying a round lot of ’s shares today would now cost about $522,000 I believe for the following reasons Apple won’t be splitting its shares.

From Forbes