CORNYVERSE

Summary Record Liquidity: KOSPI's average daily trading volume surpassed 32.23 trillion KRW (approx. $24.2 billion) in February, marking a historic high and a 19% jump from January. Semiconductor Dominance: Samsung Electronics and SK Hynix accounted for roughly 33% of the entire market's trading volume, reflecting a concentrated rally in the chip sector. Valuation Caution: While the KOSPI hit the 6,300 level, analysts warn of short-term "valuation fatigue" and geopolitical risks despite strong long-term fundamentals. What Happened The Korean stock market entered uncharted territory last month. According to the Korea Exchange (KRX), the average daily trading volume for the KOSPI reached 32.23 trillion KRW (approx. $24.2 billion), breaking the 30 trillion KRW barrier for the first time. This represents a significant surge from 27.05 trillion KRW (approx. $20.3 billion) in January. The benchmark KOSPI index achieved a milestone by crossing the 6,000-point mark on Febr...

The South Korean equity market witnessed a historic tug-of-war on February 27th, as foreign investors offloaded an unprecedented amount of large-cap stocks while retail investors stepped in to absorb the shock. TL;DR Foreign Exodus: Foreign investors sold a record KRW 7.1 trillion (approx. $5.27 billion) on the KOSPI, the largest single-day net sell-off in history. Retail Resilience: Individual Korean investors, known as "Ants," purchased KRW 6.2 trillion (approx. $4.60 billion) to defend the index from a total collapse. KOSDAQ Milestone: While the KOSPI struggled, the tech-heavy KOSDAQ crossed the 1,200 mark intraday for the first time in 26 years. What Happened The KOSPI closed down 1.00% at 6,244.13. The primary driver was a massive sell-off by foreign entities, who dumped KRW 7.11 trillion (approx. $5.27 billion) worth of stocks. This sell-off was concentrated in the semiconductor giants: Samsung Electronics (005930.KS) saw KRW 4 trillion (approx. $2.97 billion) in fo...

TL;DR VM (formerly V-Technology) has landed a substantial 46.2 billion KRW ($34.5 million) semiconductor equipment contract with memory giant SK Hynix . IVIM Technology announced a 500 million KRW ($373,000) export deal for its proprietary intravital microscopes with Paralab SA. These KOSDAQ disclosures highlight the ongoing strength of the Korean semiconductor supply chain and the global niche expansion of its biotech equipment sector. What Happened On February 24, 2026, two notable disclosures were filed on the KOSDAQ market regarding new supply contracts: VM (089890.KQ): The company announced a major contract to supply semiconductor manufacturing equipment to SK Hynix (000660.KS) . The deal is valued at approximately 46.2 billion KRW (approx. $34.5 million). Given VM's scale, this contract represents a significant portion of its annual revenue and solidifies its role in the memory chip production cycle. IVIM Technology (460050.KQ): The specialist in high-end medical imaging...

TL;DR SK Hynix shares surged over 6% to reach a record intraday high of 950,000 KRW ($678) after BlackRock disclosed a major stake. The KOSPI benchmark rose 2.31% in a single day, shattering the 5,800 level just 24 hours after crossing 5,600. Global institutional confidence in the AI-driven semiconductor 'Super Cycle' is overshadowing valuation concerns. What Happened On February 20, the Korean market witnessed a historic rally led by semiconductor giant SK Hynix (000660.KS) . The company's stock price soared 6.15% to close at 949,000 KRW (approx. $678), briefly touching the 950,000 KRW mark during intraday trading. This rally was fueled by the news that BlackRock , the world's largest asset manager, has increased its stake in SK Hynix to over 5% for the first time in nearly eight years. The surge in SK Hynix had a massive gravitational pull on the benchmark KOSPI , which jumped 131.28 points (2.31%) to close at 5,808.53. Notably, SK Hynix alone contributed 45.15 points...

HBM4 vs HBM3E (2025): Which Memory Will Power NVIDIA's Next AI Chip War? Author: CORNYVERSE Last updated: September 24, 2025 | Reading time: 8 minutes 📑 Quick Navigation 1. The AI Memory Bottleneck 2. Deep Dive: HBM3E's Role Today 3. HBM4 vs HBM3E: Head-to-Head 4. Market Impact: The AI Supply Chain Shake-up 5. Investor Outlook & Final Takeaway As the AI revolution accelerates, powerful GPUs like NVIDIA's Blackwell and the upcoming Rubin demand a torrent of data. But if that data can't be delivered fast enough, even the fastest chip is left spinning its wheels. This is the "memory bottleneck," and it's one of the biggest technical challenges of the AI era. The solution at the forefront of this battle is High-Bandwidth Memory (HBM). It's a marvel of engineering where multiple DRAM chips are stacked vertically, creating an ultra-wi...

South Korea's benchmark stock index, the KOSPI, has just made history.  For the first time ever, it has broken through the 3,400-point mark, signaling a new chapter for the Korean market.  This historic rally is capturing the attention of investors worldwide, who are now asking what's driving this surge and whether it can last.    Key Takeaways Record-Breaking Rally: The KOSPI surpassed 3,400 for the first time, marking its fourth consecutive day of all-time highs, largely driven by strong buying from foreign investors. Semiconductor-Led Surge: A boom in demand for AI chips has propelled semiconductor giants like Samsung Electronics and SK Hynix, which have been the primary engine of the index's growth. Policy-Driven Optimism: Investor sentiment has been boosted by the government's "Corporate Value-up Program" and expectations of more shareholder-friendly tax policies. What to Watch: The future direction of the U.S. Federal Reserve's interest...

The AI revolution is built on data, and the speed at which that data moves is becoming the single biggest bottleneck. Now, a new generation of memory is here to break that barrier: HBM4. 💡 Key Takeaways A Quantum Leap in Speed: HBM4 offers up to 2 TB/s of bandwidth, a massive jump from previous generations, directly accelerating AI model training and inference. The Korean Titans' Battle: South Korea's SK Hynix and Samsung Electronics are in a fierce competition to supply HBM4 for NVIDIA's next-gen AI chips, shaping the future of the semiconductor market. More Than Just Speed: HBM4 also brings significant improvements in power efficiency, a critical factor for managing the operational costs of large-scale data centers. Market-Wide Impact: The arrival of HBM4 is set to redefine performance standards for high-performance computing (HPC) and next-generation AI accelerators. 🌐 Global Attention: Why HBM4 is the Talk of Tech The entire tech world, from data sc...