Stock Market Update: KOSPI Plummets 2026-07-03
The KOSPI is feeling the heat from a global semiconductor slump, keeping the market on edge. While retail investors are cooling off on leveraged bets, the market is now shifting gears to find a new rhythm through rotational plays.
Market Briefing — 2026-07-03
Key Market Issues

1. KOSPI Plunge and Sidecar Triggered
On the 2nd, the KOSPI index closed at 7,648.09, down 7.89%, as profit-taking hit U.S. semiconductor stocks. Notably, sharp declines in Samsung Electronics (005930) and SK hynix (000660) triggered a sidecar (program selling halt), pushing the index down over 6% and breaking through the 7,800 level.

2. High Exchange Rates and Global Interest Rate Fears
With gold prices seeing their steepest drop in 13 years during Q2, concerns are mounting over the Federal Reserve’s prolonged tight monetary policy. Intense selling by foreign investors is being cited as the main driver behind the index's decline.
3. Structural Challenges for the 30-Year-Old KOSDAQ
According to Yonhap News "Economic Reading," despite 30 years of growth, the KOSDAQ continues to face headwinds from macroeconomic factors, particularly the weakening currency, which has hit its highest level since the financial crisis.
Rising Themes and Notable Stocks
1. Strength in Construction and Cable Stocks
On July 1st, buying interest in the KOSPI shifted toward small-to-mid-cap stocks, leading to gains for Kumho Electric, Daewon Cable, and Dasco. Construction stocks Kumho E&C and Samho Development hit the daily upper limit.
2. Outlook for July's Rotational Market
Experts predict a shift from the semiconductor-heavy market toward a rotational rally in sectors like shipbuilding, defense, and power equipment. The government’s "Great Leap Forward for Korea" policy is expected to catalyze this sectoral rotation.
3. Warning Against Retail Investor Leverage Frenzy
With leveraged ETFs on individual stocks like Samsung Electronics and SK hynix dominating trading volume, experts warn that "predicting short-term direction is poison" and emphasize that "defense is the essence of investing."
Macro Context
1. Uncertainty in U.S. Semiconductor Industry
Wall Street analysts, including Michael Burry, have pointed to the rally fueled by Korean semiconductor spending as the "beginning of the end." With SanDisk shares soaring 858% this year only to plunge 10.9% on June 30th alone, doubts are being cast on the sustainability of the memory super cycle.
2. Gold and Crypto as AI Bubble Refuges
As tech stocks slide, funds are fleeing to "AI bubble refuges" like gold, silver, and cryptocurrency, putting a spotlight on both traditional safe-haven assets and digital alternatives.
3. 2026 First Half Market Review: Structural Shifts
Experts reviewing the first half of 2026 predict that while the AI boom will continue, profit opportunities will become increasingly diverse.
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