One Factor Driving Twitter (TWTR) Stock Up Today

NEW YORK (TheStreet) -- Twitter  (TWTR) rose slightly on Wednesday after CEO Dick Costolo appointed Goldman Sachs  (GS) investment banker Anthony Noto as the social media company's new CFO.

Noto, who helped Twitter with its IPO in November, replaces Mike Gupta, who will transition to senior vice president of strategic investments, a new unit that will likely be responsible for outside investments, according to The Wall Street Journal.

The stock was up 0.64% to $42.32 at 12:31 p.m.

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