The Central Bank of Taiwan published end-March 2026 data showing that banks' outstanding derivatives notional amounts reached TWD 99,473.3 billion, up TWD 4,690.4 billion, or 4.95 percent, from end-December 2025. The increase was mainly driven by a TWD 3,002.7 billion rise in over-the-counter swap contracts. Over-the-counter contracts accounted for 99.80 percent of the total and exchange-traded contracts 0.20 percent. Within the OTC market, swaps made up 54.10 percent, forwards 40.32 percent, sold options 2.81 percent, and bought options 2.57 percent. By risk category, interest rate contracts represented 55.18 percent and foreign exchange contracts 44.65 percent, while equity-linked, credit, and commodity contracts accounted for 0.12 percent, 0.04 percent, and 0.01 percent respectively. Contracts held for trading purposes represented 99.23 percent of the total. Domestic banks accounted for 64.47 percent of outstanding amounts, while local branches of foreign and Mainland Chinese banks accounted for 35.53 percent. The five largest banks by outstanding balance were Standard Chartered Bank, BNP Paribas, CTBC Bank, Cathay United Bank, and Taipei Fubon Bank, together representing 50.33 percent of the market.