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Yahoo CEO Jerry Yang is not resigning today, a Yahoo source told Silicon Alley Insider, debunking a rumor that's been flying around Wall Street — given stock traders' software predilections, probably via Yahoo Messenger. Just yesterday, Yang told the Wall Street Journal: "I think that I can bring stability back to Yahoo, and I want to get on with building the company." Why the rumor? Everyone knows Yahoo stock would go up if Yang resigns, so it's likely someone who wanted to make money selling Yahoo shares. What whispers do reveal: Investors really, really want Yang to resign, and are desperately ready to believe it. Given the number of Yahoo employees we know who'd like to dispose of their options, we wouldn't be shocked if this one started in Sunnyvale.