In a letter to the SEC, Citigroup (C) called for a rejection of Nasdaq OMX Group's (NDAQ) plan to make up some losses for firms involved in the exchange operator's handling of Facebook's (FB) IPO in May, reports the Wall Street Journal. The bank charged that Nasdaq was "hasty" and "self-interested" in its management of the IPO.
Concerns over the future of the U.S. Federal Reserve's monetary stimulus and weak Chinese factory data sent shares …

