Rumortrage
A term often used by traders to refer to increased trading caused by a takeover rumor.
Investopedia Commentary
If firms A and C are both in the auto industry and rumors say that firm A will takeover firm C, an increase in trading in firms A and C's stock illustrates rumortrage.
Related Links
The Wacky World of M&As
The Basics of Mergers and Acquisitions
Trading the Odds with Arbitrage
See also: Garbatrage, Market, Sector, Speculator, Takeover