Just how flawed are Wall Street’s BlackBerry store checks?

[Wireless News]

Obviously, estimating smartphone sales volumes is fiendishly difficult. BlackBerry beat the Wall Street consensus on BlackBerry 10 device shipments by 100% in the February quarter. Most hedge funds have long suspected that most “store check” research reports are crude hoodoo, particularly outside the United States. But now former London hedge fund analyst Michael Collins has published.a very detailed piece.on just how dreadful the quality of even top-tier Wall Street store checks can be. The target here is Brian Modoff, the telecom analyst at Deutsche Bank, and this is a particularly relevant smack-down because we are talking about a leading brokerage. In his piece, Michael Collins brings up a number of points, but two very blunt lines of questioning about Deutsche

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