On September 8, Roundhill Memory ETF rose 5.08% overnight, trading at $62.74/share, with turnover of $71.82 million. Multiple bullish catalysts converged to propel the memory chip sector higher.

On the supply side, KB Securities warned that Samsung Electronics and SK Hynix have seen memory inventory fall below 10 days of supply, with the transition to next-generation HBM4 further constraining available output. The brokerage cautioned the storage market could face an unprecedented shortage next year as AI infrastructure investment expands at record pace.

On the demand side, OpenAI's launch of its flagship model Astra reignited enthusiasm for AI compute infrastructure, driving sustained growth in HBM3e, LPDDR5X, and high-capacity RDIMM shipments. TrendForce data showed Q2 global DRAM industry revenue surged 59.5% quarter-over-quarter to approximately $154.73 billion. Goldman Sachs maintained its KOSPI target of 12,000 points, arguing the market systematically underestimates the duration of the AI memory chip earnings cycle, with U.S. tech giants projected to spend over $1.2 trillion in capital expenditure next year.

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