Fears of tighter regulation on AI data center investments after the US midterm elections have rattled markets, sending South Korea’s benchmark Kospi below the 5,000 mark at one point during intraday trading Friday. According to the Korea Exchange, the index closed at 5,059.69, down 6.02 percent from the previous session. It plunged 8.78 percent to an intraday low of 4,911.28 shortly after the opening bell, triggering a circuit breaker and a sell-sidecar in quick succession before recovering slig