Samsung Electronics Surges 8% on Anthropic 2nm AI Chip Order Expectations and KOSPI Outlook
Samsung Electronics shares surged 8%, driving the KOSPI index, on news of ongoing discussions with Anthropic for 2nm AI chip production. We analyze the potential Big Tech order and the foundry outlook for the second half of the year.

The South Korean stock market experienced a massive semiconductor-driven rally on the 4th, following news that Samsung Electronics is in detailed discussions with global AI leader Anthropic to produce custom AI semiconductor chips. Samsung's stock price surged by over 8% during intraday trading, propelling the KOSPI index to spike 5.7% and quickly reclaim the 8,088-point level.
Why the Samsung-Anthropic 2nm AI Chip Collaboration Matters
At the core of these collaborative discussions is the 2-nanometer (nm) cutting-edge process of Samsung's foundry division. Anthropic, the developer behind 'Claude'—a strong competitor to ChatGPT—has been pursuing its own custom chip design (ASIC) to build an independent AI ecosystem.
- A Breakthrough in Big Tech Orders: This serves as a strong signal that the global Big Tech AI chip volume, previously heavily concentrated with TSMC, could begin shifting toward Samsung Electronics.
- Proving 2nm Yield Rates: If this order is finalized, Samsung will secure a critical foothold to significantly expand its market share by proving both its technological prowess and yield stability in the next-generation foundry competition.
- Symbiotic Rally with SK Hynix: Alongside Samsung's foundry momentum, expectations for increased High Bandwidth Memory (HBM) demand led SK Hynix to skyrocket by over 10%, with the two semiconductor giants leading the market's ascent.
Fueled by this explosive news, over 4 trillion won in massive net buying flowed in from foreign and institutional investors. The market heated up so rapidly that a buy-side sidecar was triggered during trading hours, temporarily suspending program buy orders to cool down the overheated market.
Frequently Asked Questions (FAQ)
Q. What is the primary cause of the KOSPI surge?
The biggest driver is the surge in large-cap semiconductor stocks, triggered by expectations of Samsung Electronics securing Anthropic's AI chip order. Additionally, the U.S. labor market slowdown fueled hopes for a Fed rate cut, attracting aggressive buying from foreign and institutional investors.
Q. What is the outlook for Samsung's stock in the second half of the year?
Experts forecast that if the discussions with Anthropic lead to a concrete mass-production contract, the earnings turnaround in the second half of the year will accelerate. However, the actual size of the order and the stabilization of the 2nm process mass production will be the key variables for the future stock price.
Q. What is a buy-side sidecar?
It is a market mechanism that temporarily suspends the execution of program buy orders for 5 minutes when the futures price remains more than 5% above the previous day's closing price for one minute, aiming to calm an overheated market. The activation of the sidecar this time signifies just how explosive the upward momentum from the semiconductor rally was.