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StocksMedium•23 June 2026•

1 min read

Semiconductor Stocks Slump as SK Hynix Shifts Focus Away from HBM Expansion

Key Facts

1Major semiconductor stocks including KLA, ADI, and MCHP fell following reports that SK Hynix is slowing its High-Bandwidth Memory (HBM) expansion.

2The slowdown is attributed to SK Hynix redirecting capacity to conventional DRAM for margin optimization rather than cooling AI demand.

Amid heightened sensitivity to supply chain shifts within the tech sector, major semiconductor stocks including KLA, ADI, and MCHP experienced a sharp decline. This sell-off followed reports indicating that SK Hynix is slowing its High-Bandwidth Memory (HBM) expansion. According to reports, the slowdown is attributed to the company redirecting production capacity toward conventional DRAM to optimize profit margins rather than a cooling of AI-related demand.

This strategic pivot comes as industry peers like Micron Technology (MU) reported robust memory revenue growth in the previous quarter, intensifying the pressure on competitors to balance market share with profitability. Per market data, the sector-wide slump reflects investor anxiety regarding any potential friction in AI infrastructure growth, even as analysts suggest the move is a tactical decision to enhance bottom-line performance.

Regarding current market levels, KLAC closed at $259.56 and ADI at $434.46 (as of June 18, 2026). Investors are also monitoring MCHP, which closed at $99.77, for potential technical support levels. Looking ahead, the market is awaiting the U.S. Retail Sales data scheduled for release later today, which may provide broader context on consumer strength and its impact on the technology hardware sector.