Many introducing brokers (IBs) have claims in the MF Global Inc. (MFGI) SIPA liquidation. These claims have generally been for IB proprietary funds held in MFGI segregated futures accounts and for commissions earned during October 2011, although some IBs are also evaluating the potential for other claims based on damages and lost profits deriving from MFGI’s collapse. Claims for funds held in futures accounts were commodity customer claims that needed to be filed by January 31, 2012. Claims for brokerage commissions earned during October 2011 are general unsecured claims that must be filed by June 2, 2012. The MFGI trustee…