The Options Clearing Corporation (“OCC") appreciates the opportunity to submit these comments to the Commodity Futures Trading Commission (“CFTC” or “Commission”) on the above-referenced proposal (“Proposal” or “Proposed Rules”) under the Commodity Exchange Act (“CEA”). In relevant part, the Proposal would require, among other things, (i) that funds of the clearing members of a derivatives clearing organization (“DCO”) be segregated from the DCO’s own funds and held in a depository that acknowledges, in writing, that the funds belong to clearing members, not the DCO; (ii) that clearing member funds only be invested pursuant to certain defined parameters (specifically, the restriction in existing CFTC Regulation § 1.25); and (iii) that DCOs conduct a daily calculation and reconciliation of the amount of funds owed to customers and clearing members and the amount actually held for customers and clearing members.