NEW YORK (Reuters) - Citigroup Inc's
The unit's losses were in addition to claims by market makers Knight Capital Group Inc
Nasdaq asked firms to detail estimates of losses by Monday night. After that, the Financial Industry Regulatory Authority will evaluate the filings and put out a report on the matter in about four weeks, two sources said.
A technical glitch delayed Facebook's market debut by 30 minutes and many client orders were delayed, giving some investors and traders significant losses as the stock price dropped.
The exchange operator is facing lawsuits from investors and threats of legal action from brokers.
(Reporting By John McCrank; editing by Gerald E. McCormick and Jeffrey Benkoe)