Home › Words › M › microcapmicrocapmicrocap means having a very small market capitalization of roughly $300 million or less.EtymologyFrom micro- + cap (short for capitalization).adjHaving a very small market capitalization of roughly $300 million or less.nounThe stock of a public company with a market capitalization of roughly $300 million or less.e.g.“But they are not looking for the extremely small stocks known as microcaps.” — 2007 July 8, J. Alex Tarquinio, “Loving What Nobody Wants”, in New York Times:Definitions & examples from Wiktionary (CC BY-SA 3.0).