For over six decades, Warren Buffett's stock selection has delivered outstanding results, enabling Berkshire Hathaway (NYSE: BRK.B) to consistently outperform the S&P 500 over the long term. Buffett's approach eschews chasing short-term market fads in favor of a long-term strategy focused on holding high-quality businesses, a method that has proven remarkably effective.

Although Buffett stepped down as CEO at the end of last year, he remains Chairman and deeply involved in the company's operations. In his final year overseeing investment decisions, he made a particularly notable move by venturing into a sector he has historically rarely touched: technology.

Initial Investment Strategy

To understand this investment, one must grasp Buffett's core principles. He is a long-term investor who focuses on high-quality leaders. He avoids chasing short-term, mediocre stocks for quick profits. The billionaire investor favors companies with deep economic moats and only enters at reasonable valuations.

This logic is precisely why Buffett invested in Alphabet Inc. (NASDAQ: GOOG). This is a company people interact with daily through its Google search engine. For years, Google Search has commanded over 90% of the global search market, with "googling" becoming a common verb. The persistent inability of other search engines to challenge Google's dominance underscores the strength of its wide moat, which underpins the vast majority of Alphabet's revenue through its core Google platform advertising business.

Timing the Entry Points

Over the past year, Alphabet has presented multiple buying windows for long-term investors like Buffett. His initial purchase came in the third quarter of last year when the stock traded at a forward price-to-earnings ratio below 20 times. Given the company's history of stable growth and its position as the absolute industry leader, this valuation represented significant value.

Buffett's successor, Greg Abel, significantly increased the stake in the first quarter of this year, opening a new position in Alphabet's Class C shares and raising the total holding by approximately 200%. Although the valuation at the time of this addition was higher than Buffett's initial entry point, it remained within a range considered undervalued.

Currently, the stock's forward P/E has risen to around 24 times, representing a higher valuation but one that remains reasonable overall.

Catalysts for Future Growth

With Google Search providing a solid foundation, Google Cloud and the company's artificial intelligence initiatives are opening new avenues for growth. Google Cloud offers a full suite of AI products to enterprises, with its proprietary Gemini model now fully commercialized. Furthermore, Gemini is being deeply integrated into Google's own services, with AI capabilities now fully embedded in the search function.

The latest earnings report shows that AI features have driven Google Search query volumes to record highs. Increased user engagement with Google Search boosts advertiser demand, subsequently lifting advertising revenue. Revenue for Google Cloud grew over 60% last quarter, with its backlog of commitments nearly doubling sequentially to a scale of $460 billion.

The confidence from Buffett and Abel in Alphabet stems from its seemingly unassailable competitive position, coupled with their successful timing in acquiring shares at attractive prices. For the average investor, the company's current valuation is still reasonable, and its long-term growth narrative powered by AI remains compelling, suggesting it is not too late to consider an investment.