C's PE ratio is 13.21 and their market cap is $159.09B. Citigroup Inc. is a global financial services holding company provides a range of financial products and services, including consumer banking, credit cards, corporate and investment banking, securities brokerage and wealth management.PowerShares QQQ (NASDAQ:QQQ) is currently trading at $87.6 up 0.2% in pre-market on 8950 shares traded.