Brent crude broke above $100 a barrel for the first time in two months, rattling Wall Street — and the shock traveled straight to Seoul
The KOSPI, which closed up a spectacular 4.40% yesterday (July 23), slipped back below the 7,000 level just a day later. The culprit: Wall Street’s overnight selloff, triggered by a Middle East risk-driven surge in oil prices, spilled straight over into Korean markets. Today we walk through the KOSPI’s morning session, the overnight bad news from New York behind it, and how the market is reading the situation.
7,000 Breaks the Moment the Market Opens
The KOSPI opened down 96.11 points (1.35%) at 7,000.78. The decline continued after the open, and by 10 AM the loss had widened to 2.29% (162.24 points), pulling the index down to 6,934.65 and firmly below the 7,000 mark. Having surged as high as 7,090 yesterday on semiconductor strength, the index gave back the entirety of that gain in a single session, settling into a period of consolidation.
Most large-cap names weakened as well. Samsung Electronics (-1.94%), SK hynix (-2.92%), SK Square (-3.36%), Samsung Electronics preferred (-1.83%), Samsung Electro-Mechanics (-2.28%), Hyundai Motor (-5.32%), LG Energy Solution (-3.88%), Samsung Life (-1.67%), and KB Financial (-1.70%) all declined in tandem. In Seoul’s foreign exchange market, the won weakened as well, with the dollar/won rate rising 8.4 won from the previous session to 1,475.2 won as of 9 AM.
The Culprit: Overnight Wall Street, as Oil Broke $100 on Middle East Risk
Today’s weakness in the KOSPI traces directly back to the prior night’s selloff on Wall Street. On July 23 (US time), the Dow Jones Industrial Average fell 506.93 points (0.97%) to close at 51,711.65, the S&P 500 dropped 90.66 points (1.21%) to 7,408.30, and the tech-heavy Nasdaq Composite tumbled 553.21 points (2.15%) to 25,137.69. A sharp escalation in Middle East geopolitical tension, which sent oil prices surging, was the direct trigger for the across-the-board decline in all three indexes.
What particularly rattled the market was Brent crude, the global benchmark, breaking above $100 a barrel for the first time in two months. September-delivery Brent futures surged 7.04% to close at $100.69 a barrel, while West Texas Intermediate for the same delivery month rose 6.17% to settle at $92.19 a barrel. As inflation concerns tied to the oil spike intensified, US Treasury yields climbed in tandem. The 2-year yield, most sensitive to Fed policy, rose 3.68 basis points to 4.298% (briefly touching 4.3105% intraday, its highest level since February 2025), while the benchmark 10-year yield rose 2.65 basis points to 4.655% (touching 4.6606% intraday, its highest level since May 20). As a result, market wariness about the possibility of a rate hike has grown ahead of next week’s Fed FOMC meeting.
Investor Takeaways and Expert Views
⚠️ Things Investors Should Watch
- Sharp rallies and sharp drops are repeating on a day-to-day basis: The index surged 4.40% yesterday, only to reverse into a 2%+ decline right at today’s open. In this kind of rollercoaster market, managing volatility itself matters more than betting on any single direction.
- Oil-driven inflation has emerged as a monetary policy variable: With Brent crossing $100, wariness about a potential rate hike has grown ahead of next week’s FOMC meeting. Since global oil price movements can directly affect Korean equities, it’s worth tracking oil-related headlines alongside market news.
- Won weakness is unfolding in parallel: The dollar/won rate has climbed to the 1,475 level, reflecting a weakening won. The potential for foreign capital outflows and added pressure on import prices are secondary effects worth watching as well.
- Even semiconductor bellwethers aren’t immune: Samsung Electronics and SK hynix, which led yesterday’s rally, both weakened in tandem today. It’s worth staying cautious about assuming any single stock or sector will consistently defend the broader market.
📌 What Experts Are Saying
- Market observers: As has been demonstrated repeatedly this year, semiconductor stocks with relatively strong earnings momentum tend to show greater price resilience during periods of heightened macro and geopolitical uncertainty. While next week brings macro events like the FOMC meeting, the same period also carries potential upside catalysts in the form of earnings from Microsoft, Meta, and SK hynix.
- Intel’s earnings surprise: Intel’s recently reported quarterly results and third-quarter guidance both topped market expectations, serving as a factor that has partially eased broader concerns about the semiconductor sector.
Latest Wall Street News Roundup
- All three indexes declined together (close of July 23): Dow -0.97% (51,711.65), S&P 500 -1.21% (7,408.30), Nasdaq -2.15% (25,137.69), with Middle East risk and the oil price surge cited as the direct causes.
- Brent crosses $100 for the first time in two months: September Brent surged 7.04% to $100.69 a barrel, and WTI rose 6.17% to $92.19 a barrel, stoking inflation concerns.
- Treasury yields rose in tandem: The 2-year yield hit its highest level since February 2025, and the 10-year yield its highest since May 20, both heightening tension ahead of next week’s FOMC meeting.
- Intel’s strong earnings: Both quarterly results and third-quarter guidance beat market expectations, partly supporting hopes for resilience across the broader semiconductor sector.
- Big Tech earnings on deck next week: Reports from Microsoft, Meta, and SK hynix are due, making them, alongside the FOMC outcome, a key variable in determining whether this week’s losses get recovered.
Taken together, today’s decline looks less like a problem with domestic corporate fundamentals and more like a case of Middle East risk shaking Wall Street first, via oil prices, with that shock then transmitting into Korean markets the moment trading opened. The stark contrast between yesterday and today illustrates just how sensitive the current market is to external variables. Next week’s FOMC meeting and Big Tech earnings are likely to be the next turning point in this volatile stretch.