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.
News of Citadel’s losses comes a day afterKnight Capital disclosed that it could incur losses of $30-$35 million in the second quarter on Facebook [FB 33.03 1.03 (+3.22%) ]trades alone.
Citadel’s losses were said by one of the people to be in a similar range. Both [...]




