Bitcoin futures debuted on Wall Street Sunday by the CBOE and some of the biggest banks are unsure whether or not to offer them to clients; JPMorgan Chase and Citigroup are playing a wait and see game; some firms are excited to get started though they are hesitant to open discuss it as they risk potentially contradicting previous statements by their CEOs; the volatility is the biggest concern for banks as they just are not comfortable with the wild swings. Source.