A currency dealer walks past an electronic screen showing South Korea's benchmark stock index (R) and SK Hynix stock price (L) in a foreign exchange dealing room at the Hana Bank headquarters in Seoul on July 21, 2026. South Korea's president urged financial watchdogs to take "necessary measures" over new highly speculative investment products tied to the fortunes of the nation's AI chipmakers after share price declines left investors nursing losses. (Photo by Jung Yeon-je / AFP via Getty Images)