NEW YORK - The plan administrator in the Chapter 11 bankruptcy of MF Global Holdings Ltd. (MFGH) on Dec. 9 filed a brief in the U.S. Bankruptcy Court for the Southern District of New York, contending that the $4,021,875 claim filed by JCF MFG Holdco LLC is based on a "demonstrably false premise" (In Re: MF Global Holdings Ltd., No. 11-15059, S.D. N.Y. Bkcy.).