Tech Sell-Off Triggers Global 'Great Rotation' and KOSPI Crash

U.S. equity markets closed lower on July 1, 2026, as a sharp sell-off in technology shares drove a trend known as the 'Great Rotation.' The NASDAQ Composite dropped 0.66% while the S&P 500 fell 0.21%. Conversely, the Dow Jones Industrial Average remained nearly flat, supported by Boeing, Caterpillar, and JPMorgan Chase as investors shifted capital toward defensive value stocks. Jeff Kilburg, CEO of KKM Financial, characterized this shift as a healthy broadening of the bull market, while Emily Torres of Horizon Investments attributed the movement to profit-taking in high-flying tech names.

The downturn intensified in Asia on July 2, leading to a crash in South Korea's KOSPI, which plunged 7.89% to close at 7,648.09. This collapse was fueled by a massive sell-off in semiconductor giants, with SK Hynix shares tumbling 14.57% and Samsung Electronics falling 9.06%. Market volatility prompted the Korea Exchange to activate a sell-side sidecar to halt program trading. Investors cited concerns over AI computing overcapacity following reports that Meta Platforms considered selling infrastructure access and that Apple Inc. was negotiating to source chips from Chinese firms.

Broadly, global sentiment remained fragile due to inflation concerns and the outlook for interest rates. Federal Reserve Chairman Kevin Warsh issued comments on inflation risks that dampened hopes for a July rate cut, though he later noted that inflation expectations had eased. Meanwhile, oil prices declined as the United States and Iran met separately with mediators from Qatar and Pakistan to discuss ending the war in Iran, which improved outlooks for traffic through the Strait of Hormuz.