Fighting the Tape
The action of placing a trade or trades that go against the ticker tape.
Investopedia Commentary
Someone who is buying stocks while the overall market is falling is said to be fighting the tape. Many traders say that fighting the tape is a cardinal sin.
Related Links
Understanding The Ticker Tape
Short-, Intermediate- and Long-Term Trends
Forces That Move Stock Prices
Which Direction Is the Market Heading?
See also: Countertrend Strategy, Painting the Tape, Ticker Tape, Trend