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SK Hynix jumps 8%, Samsung 4%: why OpenAI's Astra is reigniting the memory trade

Bubble signal: +1 · Overheating evidenceRelevance 70MarketsGlobal
Source: NewsData: AI bubble (EN) · Published 2026-09-07

Summary

OpenAI's new model GPT-6 Astra has reignited enthusiasm for AI infrastructure, driving Samsung Electronics and SK Hynix shares sharply higher in Seoul. Samsung rose about 4.3% in early trading, while SK Hynix climbed roughly 6.1%, after its US ADR jumped 8.1% on Friday. Astra is built to handle longer, multi-step work across software and computers, potentially increasing demand for GPUs, HBM, server DRAM, and storage.

Bubble analysis

This news suggests that more efficient AI models may not reduce infrastructure demand but could increase it, undermining a key argument for the bubble thesis that efficiency gains would lead to lower capex. The stock rally reflects market expectations of continued AI investment growth, but it does not provide new funding figures itself.

#sk-hynix#openai#memory#samsung
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