BUSINESS
03/22/2012 08:32 am ET Updated May 22, 2012

Wall Street's Tight Twitter Grip

"Next stop Dow 57,757? Don't count on it but Tuesday's bullish session is in the books."

That dash of market analysis on Twitter wasn't an impromptu thought from an investor. It was a prewritten post, taken from a library of 140-character messages that had been approved by the compliance department of Morgan Stanley and sent out by financial advisers at Morgan Stanley Smith Barney.

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