Warren Buffett has sent a clear, multi-billion-dollar message about artificial intelligence that investors should not ignore.

Key Points
Berkshire has always considered Alphabet as a potential investment opportunity.
Since Berkshire invested in Alphabet, the company's stock price has risen.
The stock no longer falls into the value stock category.
We prefer these 10 stocks over Alphabet ›
Although Warren Buffett is no longer the CEO of Berkshire Hathaway, investors are still learning about his final moves before stepping down. Berkshire Hathaway operates a massive investment portfolio, and investors typically have to wait 45 days after the end of a quarter, when the company files its 13F form with the SEC, to learn about changes in its portfolio. Therefore, we will know around February 15 what Buffett and Berkshire Hathaway did in his final days before stepping down.

The latest information we have about Berkshire's investments comes from the third quarter. Buffett and Berkshire have always adhered to investing in businesses that are easy to understand and align with value investing principles. Most AI stocks do not fall into these two categories, so the emergence of this new stock may come as a surprise to some investors.

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However, I think this is a brilliant move that aligns with Buffett's investment philosophy. Investors should not ignore this multi-billion-dollar signal, and I believe many should follow Berkshire's lead and invest in Alphabet $Alphabet - C(GOOG.US) $Alphabet(GOOGL.US).

Buffett finally invested in Alphabet.
Buffett has long been a fan of Google, Alphabet's core business. However, in his long investment career, Berkshire Hathaway did not invest in Google until 2025. Buffett and his team (or perhaps other investors more focused on the tech sector) bought nearly 17 million shares of Alphabet in the third quarter. At the current stock price, this Alphabet stake is worth about $Intel(INTC.US)