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NOTES & ANALYSIS

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Financial market analysis, algorithmic trading development, and engineering notes.

Market Analysis

October 6 (Tue) Morning Briefing: KOSPI Reclaims 7,000, US Markets Close Higher Overnight

As of 06:30 KST on October 6, the market is in pre-market status following the previous trading day on October 2. In the prior session, KOSPI gained 32.39 points (+0.46%) to close at 7,003.74, while KOSDAQ fell 1.00 point (-0.11%) to 893.29. Overnight US markets closed higher, with NASDAQ up +1.05%, S&P 500 up +0.66%, and Philadelphia Semiconductor up +0.27%. The VIX closed at 15.52 (+1.37%). Investor flow data is unavailable due to upstream collection failure.

• 4 min read
Market Analysis

September 24 Morning Briefing: Market Closed Today for Holiday, Kospi Closed at 7,080 Yesterday

As of September 24, 2026, the Korean market is closed for a holiday, with the next regular trading session scheduled for September 28. On the previous trading day (September 23), the Kospi closed up at 7,080.92 (+0.90%) and the Kosdaq closed up at 844.48 (+1.21%). The US market saw declines with Nasdaq -1.13%, S&P 500 -0.75%, and Philadelphia Semiconductor Index -1.23%, while the VIX rose 6.83% to 15.18. Supply-demand data is not available due to a collection error.

• 1 min read
Market Analysis

Kospi Returns to 7,000... U.S. Semiconductor Strength Before Market Opens

Yesterday, Kospi closed at 7,007.72, up 113.49 points (1.65%), recovering the 7,000 line, while Kosdaq also rose 1.11% to record 836.27. In the U.S. market, Nasdaq surged 2.26% and Philadelphia Semiconductor Index jumped 4.29%, continuing a tech-stock-led rally. VIX rose slightly but maintained low levels. However, supply/demand data collection failed, making confirmation difficult, and some indicators are based on yesterday's data, which may differ from today's market conditions.

• 1 min read
Market Analysis

U.S.-China Summit State Dinner: 'Big Tech Beneficiary' Thesis Verification

Fact-checking the beneficiary thesis for Sept 24 White House state dinner attendees (Jensen Huang, Tim Cook, Elon Musk). Natural experiment of May 14 Beijing summit (+8% pre → -4% post), H200 customs blockade (0 units), 5 historical cases, and actionable strategies.

• 19 min read
Market Analysis

[Morning Briefing] KOSPI Retreats Below 6,600 Amid External Interest Rate Pressure, Foreign Selling Intensifies

On September 14, 2026, the Korean stock market closed with a significant drop in the KOSPI index to 6,684.37, affected by global external interest rate hike pressures and large-scale foreign net selling. Macro-negative factors overlapped, including US 10-year Treasury yields breaking above the 5% line and rising oil prices due to the closure of Saudi oil pipelines. Meanwhile, the credit rating industry announced credit rating results for major capital companies, and news was reported such as a decline in August export prices due to the fall in the won/dollar exchange rate.

• 5 min read
Market Analysis

[Morning Briefing] KOSPI Falls Below 7,000 as Foreign and Institutional Investors Continue Net Selling...Kumho Tire Credit Rating Upgraded

This is the morning briefing as of September 14, 2026. After breaking the 7,000 mark, the KOSPI index fell and closed at the 6,900 level, with individual investors buying alone while foreign and institutional investors continued selling together. Kumho Tire's senior credit rating was upgraded from A to A+, and it is forecast that next year's corporate tax revenue will exceed income tax revenue.

• 3 min read
Market Analysis

KOSPI retreats below 6,900 mark, KOSDAQ closes at 820... Amid currency plunge and Middle East concerns, markets eye FOMC

As of September 11, 2026, KOSPI closed at 6,909.91 and KOSDAQ at 820.64. Amid concerns over declining profit prospects for the semiconductor sector due to the recent sharp drop in the won/dollar exchange rate and renewed tensions in the Middle East, selling pressure from foreign and institutional investors continued. The market is now focusing on the upcoming US FOMC's interest rate decision.

• 3 min read
Market Analysis

KOSPI Falls Below 6,900 Line Amid Rising U.S. Interest Rate Hike Possibility as Foreign Selling Continues

On September 11, 2026, the KOSPI index closed at 6,909.91, falling due to large-scale net selling by foreigners and institutions. The U.S. core CPI exceeding expectations has reignited concerns about interest rate hikes, increasing market caution. This briefing is based on data provided by the Korea Exchange (KRX) and other sources, and should not be used as investment advice.

• 3 min read
Market Analysis

KOSPI Breaks 7,000 Mark with Securities Firms Achieving Record Q2 Earnings Amid U.S. Futures Weakness

On September 9, 2026, the KOSPI index broke the 7,000 mark by recording 7,051.64. Capitalizing on the stock market boom, domestic securities firms' Q2 net profits exceeded 5 trillion won, reaching an all-time high, with market expectations for AI and U.S. nuclear power investments being reflected. However, as of the morning of September 10, U.S. overnight futures indices are showing a collective downward trend.

• 3 min read
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