South Korea’s five major crypto exchanges recorded combined trading of about 20.5 trillion won, or $15.1 billion, in the week ended Oct. 2, down 19.56% from the previous week and roughly 5 trillion won from the prior seven-day period. Upbit remained the largest venue with 64.04% of trading, although its share fell 3.3 percentage points, while Bithumb rose 1.893 points to 26.66%. Coinone ranked third at 6.58%, followed by Digital X at 2.71% and Gopax at 0.02%. The weekly data did not identify a specific cryptocurrency, exchange event or regulatory action behind the decline. Separate first-half 2026 data from the Korea Financial Intelligence Unit and Financial Supervisory Service showed average daily volume down 44%, market capitalization down 33%, won deposits down 35%, sales down 41% and operating profit down 78%. The review covered 26 registered virtual asset service providers and also highlighted liquidity risks in exchange-exclusive tokens. Regulators are preparing tighter virtual-asset transfer and reporting requirements, while Bithumb and Upbit added Talus and Dolphin listings on Oct. 2, respectively.