Methods are provided to determine a settlement price for an over-the-counter exchange traded financial instrument. The method includes receiving swap curves from a plurality of market makers and identifying missing data points in the curves. A repair mode may be determined for curves identified as missing data. The curves may be repaired based on the determined repair mode. The selected curves including the repaired curves may be blended together to derive a final settlement prices for each of a plurality of standardized centrally cleared swaps. The financial instruments may include Euro denominated interest rate swaps, U.S. denominated interest rate swaps, or OIS interest rate swaps.