n.
Large-scale, computer-assisted trading of stocks or other securities according to systems in which decisions to buy and sell are triggered automatically by fluctuations in price.
program trader program trader n.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.