Shares of major semiconductor manufacturers, including Samsung Electronics and SK Hynix, fell sharply on Monday as renewed doubts surfaced regarding the durability of the AI-driven market rally.

The sector-wide selloff was driven by a combination of concerns over Nvidia’s financing sustainability and intensifying competition from Chinese chipmakers, which has prompted investors to take profits after a prolonged run of gains.

3 trillion, market participants are questioning whether the current demand trajectory can support such massive capex commitments without eroding margins.

The decline in memory chip stocks reflects broader anxiety about the capital intensity required to maintain leadership in the AI infrastructure build-out.

With reports indicating that Samsung and SK Hynix are preparing to announce combined investment plans totaling more than $1.3 trillion, market participants are questioning whether the current demand trajectory can support such massive capex commitments without eroding margins.

The high-level engagement between the CEOs of Samsung, SK Hynix, and Naver with Nvidia leadership in the United States underscores the critical role these partnerships play, yet the market reaction suggests skepticism about the near-term return on investment.

This repricing comes at a sensitive time for the technology sector.