The won-dollar exchange rate extended a multiweek decline as the South Korean won strengthened, with the weekly closing average falling to a yearly low of 1,417.6 won in the second week of August and the 3:30 p.m. benchmark later closing at 1,411.80 won on August 18, its lowest since October 2 last year. The move was supported by SK Hynix converting proceeds from its American Depositary Receipt issuance into won, exporter dollar selling, reduced foreign-investor selling and, more recently, net foreign buying of 91.4 billion won in KOSPI shares for a fifth straight session. External support came from softer U.S. inflation data and weaker-than-expected July U.S. retail sales, which strengthened expectations that the Federal Reserve would hold rates in September rather than raise them again. However, intraday gains were partly reversed as Seoul equities turned sharply lower, while U.S. long-term Treasury yields above 5.31% on the 30-year note and heightened Middle East tensions limited further won strength. Bank of Korea Deputy Governor Yoo Sang-dae said the central bank would maintain its tightening stance as long as inflation does not stabilize, while Barclays said exchange-rate moves are becoming more important to the Bank of Korea's growth and financial-stability trade-offs. Market views remain divided, with some expecting the won-dollar rate to move into the 1,300 won range and others saying importer demand, overseas stock investment by South Korean residents and real-demand buying near 1,410 won could limit further declines without new catalysts.