A stock buying strategy that doubles the risk when the price moves in the opposite direction than the investor hoped for. For example, an investor with confidence in ABC buys 1000 shares at $100 and another 1000 shares when the price declines to $90.
DOUBLE UP
Meaning of DOUBLE UP in English
Campbell R. Harvey. Hypertextual finance English glossary. Английский словарь гипертекстовых финансов. 2012