rumourtrage
n.— «The latest market neologism is “rumourtrage,” which means disseminating a rumour and trading on it. The practice has been around since coconuts were first traded but the proliferation of hedge funds and, more lately, of increasing short positions has made rumourtrage quite a profitable exercise.» —“Shorts fuse at Babcock & Brown” by Michael West Sydney Morning Herald (Australia) Feb. 21, 2008. (source: Double-Tongued Dictionary)