SK Hynix Surges 7% as OpenAI’s GPT-6 Astra Sparks Memory Chip Rally

Key Highlights

• SK Hynix surged over 7% in Seoul markets on September 7 following OpenAI’s unveiling of its GPT-6 Astra model
• Samsung Electronics climbed approximately 4% to 5% as optimism around AI demand spread across the sector
• Both Samsung and SK Hynix now hold memory inventories representing less than 10 days of supply, KB Securities reports
• DB Securities upgraded SK Hynix’s price target to ₩2.3 million, citing expanding HBM4 shipments
• Wall Street analysts maintain a Strong Buy rating on SK Hynix with price targets suggesting over 50% potential gains

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Shares of SK Hynix climbed more than 7% during Monday’s Seoul trading session on September 7, extending Friday’s 8.1% surge in its US ADR. The rally was triggered by OpenAI’s introduction of GPT-6 Astra, marking the company’s most advanced AI model yet.

SK hynix Inc., SKHY

Fellow memory chip giant Samsung Electronics posted gains of 4% to 5% during early Seoul trading, reflecting widespread enthusiasm across the semiconductor industry following the AI breakthrough.

Greg Brockman, OpenAI’s President, characterized Astra as possibly representing an early stage of artificial general intelligence (AGI). The advanced model demonstrates capabilities including web navigation, software coding, computer operation, and autonomous execution of sophisticated professional tasks.

This technological advancement carries significant implications for hardware manufacturers. As organizations deploy AI agents for increasingly complex, multi-stage operations, data centers will require expanded infrastructure including GPUs, high-bandwidth memory modules, server DRAM, and storage systems to power these enhanced workloads.

Lower AI Costs Don’t Necessarily Reduce Infrastructure Requirements

Recent months have seen concerns among chip investors that declining token costs and improved model efficiency might reduce AI infrastructure demand. Astra’s launch challenges this narrative.

Meritz Securities analyst Hwang Soo-wook contends that reduced AI costs will actually prompt users to delegate more extensive and intricate tasks to AI agents, ultimately expanding rather than contracting overall compute requirements. He highlighted rising GPU rental rates following Astra’s announcement as proof that computing demand remains robust.

Kiwoom Securities analyst Han Ji-young informed Seoul Economic Daily that Astra has refocused attention on AI demand dynamics and indicated that downward pressure on semiconductor stocks may be approaching its end.

Memory Supply Reaches Critical Levels

The stock surge reflects more than mere market sentiment. On Monday, KB Securities disclosed that memory inventories at both Samsung and SK Hynix have fallen beneath the 10-day supply threshold.

KB Securities research chief Kim Dong-won forecasts that next year could witness historically unprecedented supply constraints. The firm anticipates global hyperscaler AI infrastructure expenditure will reach approximately $1.3 trillion by 2027, representing a 60% year-over-year increase, with memory’s portion of total spending expanding to 57% from merely 14% in 2025.

Supply constraints may intensify as producers redirect manufacturing capacity toward HBM4 production. HBM4 manufacturing consumes approximately three times the wafer capacity compared to traditional DRAM, effectively reducing availability for standard memory products.

DB Securities analyst Seungyeon Seo elevated the SK Hynix price target from ₩2 million to ₩2.3 million, pointing to accelerating HBM4 shipments and strengthening pricing dynamics. Seo acknowledged that SK Hynix’s third-quarter earnings might fall marginally short of market expectations due to adverse currency movements, but emphasized that overall semiconductor sector momentum continues unabated.

SK Hynix’s Korean-listed shares hold a Strong Buy consensus among analysts, with the average price target of ₩2,708,750 suggesting potential upside exceeding 50% from present trading levels.

DB Securities projects the DRAM market expansion will persist through 2027, underpinned by constrained supply and robust server demand fueled by intensifying competition among technology giants investing in AI infrastructure.

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Source: https://blockonomi.com/sk-hynix-surges-7-as-openais-gpt-6-astra-sparks-memory-chip-rally/