odd lot

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A quantity that differs from a standard trading unit, especially an amount of stock of fewer than 100 shares.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun economics A block of shares of stock that is not a multiple of some number, usually 100.
• noun economics A set of leftover goods, of a quantity less than an evenly divisible shippable unit, often sold at reduced price.