Abstract: A method apportions guaranty fund contributions into tranches in connection with an auction directed to transferring open positions in a set of markets, such as positions in interest rate swap contracts. Bids for the open positions from non-default market participants are received. A quality factor is determined for each bid based on an offset between the bid and a winning bid in the auction for each open position. For each market and for each non-default market participant, a portion of the guaranty fund contribution of the non-default market participant is allocated to one of the tranches based on the quality factor for the market.

Abstract: A method apportions guaranty fund contributions into tranches in connection with an auction directed to transferring open positions in a set of markets, such as positions in interest rate swap contracts. Bids for the open positions from non-default market participants are received, and position data indicative of respective positions of non-default market participants is analyzed to determine a risk assessment proportion for each market of the non-default market participant. A quality factor is determined for each bid based on an offset between the bid and a winning bid in the auction for each open position. For each market and for each non-default market participant, a portion of the guaranty fund contribution of the non-default market participant is allocated to one of the tranches based on the quality factor for the market, the portion being defined in accordance with the risk assessment proportion for the market.