OTC Clearing recorded strong growth in May 2026, with notional outstanding volumes rising 27 percent year on year to EUR 54,654 billion, up from EUR 43,038 billion in May 2025. Swaps product group is the main growth driver with OIS at forefront, which surged 87 percent compared to last year to EUR 9,855 billion. Interest rate swaps also contributed significantly, climbing 26 percent to EUR 22,540 billion.