Alphabet joins $3 trillion club as shares hit record high

Alphabet reached a market valuation of $3 trillion for the first time on Monday after its shares climbed nearly 4% to a record high of $250.

The rise pushed Alphabet into an elite group of companies whose market capitalizations have surpassed $3 trillion, joining Apple and Microsoft; AI chipmaker Nvidia, at about $4.25 trillion, remains the world’s most valuable company. Broad gains in technology and AI-linked stocks helped lift Wall Street’s main indexes to record levels.

The company’s market value milestone reflects continued investor enthusiasm for companies exposed to artificial intelligence, cloud computing and digital advertising. Analysts and investors have increasingly concentrated holdings in a handful of mega-cap technology firms, driving sharp advances in their share prices this year.

Kim Forrest, chief investment officer at Bokeh Capital Partners, said the current interest in the sector is unusual in its intensity. “There has been no other [sector] in the past 18 months, maybe even two years, that has had such excitement from investors,” she said.

Stock-market gains on Monday were led by large-cap technology names, with demand for AI-related equities cited by market participants as a strong driver. Alphabet’s rise came as the broader market recorded gains, reinforcing a stretch of strong performance for indexes that have been lifted by technology and AI investments.

Alphabet’s ascent to a $3 trillion valuation is another sign of the growing dominance of a small group of companies in global equity markets. The concentration has prompted renewed attention from investors and regulators over market dynamics and the implications of outsized valuations among a handful of firms.

The company’s stock has climbed over the past year amid sustained demand for its advertising services, growth in cloud computing, and investor expectations about the potential for AI to expand revenue opportunities across its businesses. Nvidia’s earlier surge to a valuation above $4 trillion highlighted the premium investors are placing on firms central to AI infrastructure.

While the milestone underscores investor appetite for technology and AI exposure, market observers note that valuations at these levels increase scrutiny around future earnings performance and the potential for heightened volatility should sentiment shift.

Alphabet’s market-cap landmark on Monday adds to a series of valuation records for major technology companies this year, reflecting both the sector’s outsized performance and the central role these firms play in driving equity-market gains.