Citadel Securities, the retail arm of Ken Griffin’s Citadel Investment Group, has become the latest firm to report “significant losses” from Facebook trades on behalf of clients, according to people familiar with the situation. Peter Folley | Bloomberg | Getty ImagesA Facebook Inc. IPO announcement flag flies outside of JPMorgan Chase & Co. headquarters in New York.News of Citadel’s losses comes a day after Knight Capital disclosed that it could incur losses of $30-$35 million in the second quarter on Facebook [FB Loading... () ] trades alone. Citadel’s losses were said by one of the people to be in a similar range. Both Knight and Citadel submitted claims for financial accommodation from Nasdaq by Monday's deadline, these people said. The claims will then fall under ... Continue reading →

Nasdaq executives are making an aggressive, behind the scenes push to stem the damage from the Facebook IPO, CNBC has learned. Emmanuel Dunand | AFP | Getty ImagesA source with direct knowledge of Nasdaq’s [NDAQ Loading... () ] efforts says executives have made “dozens and dozens” of phone calls over the past several days to bankers, financial sponsors, companies that have committed to Nasdaq and those that are considering a possible listing. The source says Nasdaq officials are “concerned” about the possibility of Facebook [FB Loading... () ] leaving for the NYSE [NYX Loading... () ] and believe the fallout from the IPO could have a lasting impact on its ability to lure companies to list on the exchange in the future. Still, the source ... Continue reading →