Korea Stock Market News
KOSPI & KOSDAQ moves, foreign/institutional flows, and company catalysts — translated for global investors.
Amazon's AWS Grows 37% — Why Samsung Electronics and SK Hynix Are Smiling Again
Amazon raised its 2026 tech investment plan to $220 billion, and AWS revenue grew 37%. The question now is whether AI cloud spending will translate into results for the memory supply chain.
Jul 31, 2026
Hyosung Surges Over 10% in After-Hours Trading — Supply-Demand Moved Before the Regular Session Could Confirm It
Hyosung (004800) surged more than 10% in after-hours trading on the 31st. Price moves outside the regular session should be viewed alongside liquidity conditions, the possibility of a holding-company discount re-rating, and the risk of chasing the rally.
Jul 31, 2026
SK Hynix Hits Limit-Up as KOSPI Surges 17.9% to Close — Investors Who Sold the Day Before Left Empty-Handed
The KOSPI closed up 17.9%, gaining more than 1,000 points, on the 31st. SK Hynix, the No. 2 stock by market capitalization, hit limit-up, and Samsung Electronics also posted a sharp gain, driving the rebound — and denying retail investors who had cut their losses during the sharp drop any chance to recoup them.
Jul 31, 2026
Invenia Plunges 17% as Sell-Side Pressure Dominates Despite Search Volume Surge
Invenia plunged 17.01%, ranking 24th among the day's sharpest decliners. Naver real-time search volume surged even as the stock fell, creating a disconnect between investor interest and order flow, while sector peer Jusung Engineering surged 28%, presenting a stark contrast.
Jul 31, 2026
Nature Cell Wins First Trial on JOINTSTEM, but Defendant Appeals — Approval Expectations Pushed Back
On July 31, Nature Cell disclosed that the defendant has filed an appeal in the lawsuit seeking to overturn the rejection of JOINTSTEM's marketing approval. The key point isn't a confirmed approval — it's a reset timetable.
Jul 31, 2026
Samsung Electro-Mechanics, SK Hynix: Why Top 1% Traders' 9:30 AM Buying Flooded Into Semiconductors
Samsung Electro-Mechanics and SK Hynix topped the buy list of the top 1% of investors by returns. Money also flowed into semiconductor rebound stocks including Daeduck Electronics, VM, and Hanmi Semiconductor.
Jul 31, 2026
LG Chem's Q2 Operating Profit Hits 599.6 Billion Won — The Number Chemical Stocks Should Watch First
LG Chem's second-quarter operating profit came to 599.6 billion won, up 25.8% year-on-year. Investors need to separate the quality of this earnings rebound from the sustainability of battery and petrochemical margins.
Jul 31, 2026
Dongil Steellux Decides to Divest Stake in Another Company — The Key Question Is Who, and Why
Dongil Steellux has decided to sell shares and equity securities it held in another company. The disclosure does not specify the deal size, but depending on who the buyer is and what the proceeds are used for, the move could be read either as a step toward balance-sheet improvement and liquidity, or as a loss-cutting sale of an investment asset.
Jul 31, 2026
ETF After-Hours Trading Launch Shelved Ahead of September Rollout — Regulators Couldn't Even Agree on Who Calculates iNAV
The plan to launch ETF after-hours trading (4 p.m.–8 p.m.) has effectively been shelved just three months before its scheduled September rollout. Beyond concerns over short-term market overheating, the decisive factor was that regulators had not even settled who would calculate the real-time net asset value (iNAV) after the regular session closes. No new timeline for relaunching the initiative has been set.
Jul 31, 2026
Amazon's AI Infrastructure Rally Leaves Apple Behind... The Real Winners Are Samsung Electronics (005930) and SK Hynix (000660)
Amazon posted a sharp gain (surge) on expectations of higher cloud revenue as it ramps up AI infrastructure investment, while Apple fell on concerns that it lacks AI exposure. The more DRAM and HBM packed into each server, the more directly it translates into memory earnings for Samsung Electronics and SK Hynix.
Jul 31, 2026
Motrex Acquires Stake in Subsidiary — Cash Flow Discipline Takes Priority Over Automotive-Electronics Expansion
On July 31, 2026, Motrex disclosed a decision by one of its subsidiaries to acquire equity in another company as a major management matter. With the amount undisclosed, the priority for investors is assessing the financial burden rather than any strategic narrative.
Jul 31, 2026
Microsoft's Earnings Surprise Sends SK Hynix ADR Soaring 17%
Microsoft's strong earnings rippled into a 2.8% Nasdaq gain and an 8% surge in semiconductor stocks. For the Korean market, the key story is AI server demand and a reassessment of the HBM value chain.
Jul 31, 2026
SeAH Besteel Upgraded to Buy — Anti-Dumping Duties and Nickel Prices to Reshape the Second Half
SeAH Besteel Holdings is drawing attention after iM Securities upgraded its rating to Buy and named it its top pick in the steel industry sector for the second half. Anti-dumping duties on Chinese steel and rising nickel prices are the key variables.
Jul 31, 2026
EZCaretech Discloses Supply Contract but Leaves the Contract Value Blank
EZCaretech disclosed a single sales/supply contract but did not specify the contract value. For a company whose core business is hospital information system (HIS) and electronic medical record (EMR) solutions, the scale of the supply deal and the timing of its revenue contribution will have to be confirmed through a follow-up disclosure.
Jul 31, 2026
Auto Insurance Posts First Loss in Six Years as Three in Four Minor-Injury Patients Choose Korean Medicine Hospitals
Auto insurance loss ratios turned negative in the first half for the first time in six years. With all of the top 10 hospitals by admission rate being Korean medicine (hanbang) hospitals, and three out of four minor-injury patients choosing hospitalization over outpatient care, this claims structure is weighing on non-life insurers' earnings. Whether loss ratios improve will become clear when Samsung Fire & Marine Insurance, DB Insurance, and other non-life insurers report third-quarter earnings.
Jul 31, 2026
US Semiconductor Stocks Surge 8.19% in SOX's Biggest One-Day Gain in 15 Months, Just a Day After a Sell-Off
The Philadelphia Semiconductor Index (SOX) jumped 8.19% on the 30th (local time), marking its largest single-day gain in 15 months. All 30 semiconductor stocks in the index, which had been under sustained pressure from sell-off-driven selling until just the day before, rebounded in unison and reversed direction within a single session.
Jul 31, 2026
Biotech Licensing's 'Trillion-Won Deals': The Real Upfront Payment Is Now Disclosed in Numbers
The Financial Supervisory Service has announced improvements to disclosure rules for pharmaceutical and biotech licensing deals. Companies will now be required to separately disclose the upfront payment received immediately upon signing and the contingent milestones tied to clinical trial results, regulatory approval, and sales performance — revealing how much of a trillion-won headline deal is actually confirmed. If clinical trials fail, a substantial portion of the milestone payments will never be paid out.
Jul 31, 2026
Kumbi: Voting-Rights Injunction Becomes the Wildcard—Why Ownership Stakes Matter More Than Earnings
Kumbi disclosed on July 30, 2026 a petition for an injunction to suspend voting rights, tied to a management-control dispute lawsuit. Uncertainty over the shareholder-meeting vote count may get priced in before demand for baby products does.
Jul 31, 2026
KEPCO: Yeosu's 248-Household Blackout Signals a Grid Warning
The KEPCO distribution grid issue reveals not near-term earnings impact but blackout risk during heatwaves and mounting pressure for capital investment. With the cause still unconfirmed, power equipment stocks (tickers) are split between expectation and verification.
Jul 31, 2026
KRW/USD Breaks Below 1,420 Won as Yen Surge Shakes Up KOSPI Supply-Demand
The KRW/USD exchange rate slipped below 1,420 won in overnight trading for the first time in nine months. As yen strength spilled over into the won, it became a variable for foreign investor supply-demand (order flow) and export stock valuations.
Jul 31, 2026
CCS Trading Halted Ahead of Capital-Reduction Relisting — Look Beyond the Financial Cleanup
On July 30, CCS disclosed a change to the trading suspension period tied to the relisting of shares following its capital reduction. Once the share-count adjustment is done, what's left is the cash flow from its broadcasting business and listing risk.
Jul 30, 2026
SK Hynix (000660): Chey Tae-won Makes First-Ever Open-Market Purchase Worth 4.8 Billion Won — A Signal Amid the Plunge
After SK Hynix shares suffered a sharp drop, Chairman Chey Tae-won purchased about 4.8 billion won worth of stock on the open market on the 30th. It signals confidence in the AI semiconductor cycle and responsible management, but earnings variables still need to be watched separately.
Jul 30, 2026
US GDP Shock at 1.5%: KOSPI Export Stocks Wobble First
U.S. second-quarter growth slowed to 1.5%, missing forecasts. Rate-cut expectations have risen, but demand assumptions for semiconductors, autos, and other cyclical stocks now need to be revised lower again.
Jul 30, 2026
3-Year Treasury Yield Jumps to 3.831% — It's Not Just Bonds Feeling the U.S. Rate Shock
On the 30th, the yield on 3-year Korean Treasury bonds surged to 3.831% per annum, as the rise in U.S. Treasury yields spilled over into the domestic market within a single day. Higher rates raise margin-expansion hopes for bank stocks while adding valuation and funding-cost pressure to growth stocks and real estate.
Jul 30, 2026