Alphabet Shares Rise 1.4% as $5 Trillion Market Cap Comes into View

May 18th, 2026 -

About 2 Mins
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Alphabet is close to a rare milestone. On Monday, its shares rose 1.4%, bringing the Google parent company within about 2% of a $5 trillion market value. This comes just 87 trading days after it first closed above $4 trillion in January. Let’s look at what’s fueling this growth and whether its big AI investments are delivering results.

This rally is based on real progress, not just market excitement. Alphabet’s first-quarter earnings showed record growth in Google Cloud, with the company highlighting that increased demand for AI services drove much of this growth. This demonstrates that Alphabet’s big AI investments are starting to pay off. The company spent nearly $36 billion on capital expenses in the first quarter, twice as much as last year, mostly on AI infrastructure and projects. Investors who doubted whether this spending would lead to returns now have a clear answer. Building on this positive trend, additional factors contributed to Monday’s gains.

Another boost came on Monday when Berkshire Hathaway’s latest 13-F filing showed it had sharply increased its Alphabet holdings. By the end of March, Berkshire owned nearly 58 million shares, valued at about $17 billion, up from 17.8 million shares valued at about $5.6 billion three months earlier. This move provided additional institutional support for a stock already hitting new highs, which helped set the stage for Alphabet’s latest achievement.

On Monday, both Alphabet’s Class A and Class C shares neared record closing highs. Now, as the second-largest company by market value, trailing only Nvidia, Alphabet stands on the verge of entering an elite financial league. Its strong momentum and strategic investments continue to push boundaries, making the prospect of a $5 trillion valuation more tangible than ever.

This content is provided for general information purposes only and is not to be taken as investment advice nor as a recommendation for any security, investment strategy or investment account.
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