Micron Technology shares jumped 18.4% to $1,236, propelling the memory chipmaker’s market capitalization to $1.398 trillion.
The surge allowed Micron to briefly surpass both Meta Platforms and Tesla in total valuation, marking a significant milestone for the semiconductor sector.
4 trillion valuation underscores the market’s willingness to assign premium multiples to companies with direct exposure to high-bandwidth memory and AI server demand.
The sharp repricing reflects a broader resurgence of investor confidence in the artificial intelligence sector.
Global equity markets rallied on Thursday, driven by robust financial results from key US semiconductor manufacturers.
The broad-based advance suggests that capital is rotating decisively into hardware infrastructure providers as the AI build-out accelerates.
Micron’s rise to a $1.4 trillion valuation underscores the market’s willingness to assign premium multiples to companies with direct exposure to high-bandwidth memory and AI server demand.
The move positions the company as a central pillar in the current tech rally, rivaling the valuations of major software and electric vehicle peers.
Investors will now focus on whether this momentum can be sustained as other semiconductor peers report earnings.