That, most likely, was the point. A few months ago, Marc Adreessen credited the proliferation of this kind of market manipulation with the demise of the IPO. In his view, a company as well established as IBM can roll with punches like these, but (for reasons he describes in some detail) fledgeling companies can't. So they stay private until they're big enough to fend off the hedgies who make money by planting and fanning rumors like this.

The macro-problem is that companies are past the steep part of their growth curves before they're public, meaning that the benefits of economic growth flow largely to a small number of pre-IPO investors, and not the broad range of people whose 401(k) plans depend on growth in public markets.

Anyway, the entire interview if really good, and crap like this IBM rumor indicates that he's got a point.

http://www.vox.com/2014/6/26/5837638/the-ipo-is-dying-marc-a...