Alphabet Inc. (GOOG)

Berkshire has always run a concentrated approach in its stock portfolio.

These two iconic tech stocks are trading at surprisingly modest valuations.

People open social apps to keep up with friends and enjoy content, which is not something they’ll hand off to AI agents. That gives Meta's ad revenue firmer protection than Alphabet's.

Apple has done quite well in 2026, but there is more to that story.

IonQ and Rigetti Computing are two popular pure-play quantum computing stocks.

Berkshire has bet big on this powerful industry leader.

Artificial general intelligence might be here, or it might be a few years off. Either way, the biggest companies you own are betting their balance sheet on it.

Micron stock usually rises during the final months of the year.

The biggest IPO stock ever is finally climbing again after it plunged earlier this year.

Anthropic and OpenAI are rumored to be approaching IPOs later this year or early next year.

Anthropic could go public as soon as November.

Many of the semiconductor stocks at the heart of the artificial intelligence revolution are plunging.

They may be Berkshire-owned and Buffett-approved. That doesn't necessarily make them must-haves for you, however.

Nvidia is powering the AI revolution, but its biggest customers are looking for ways to rely less on it. Here's why that could matter for investors betting on a $10 trillion future.

Alphabet has a lot to prove in the market's "show-me" phase of AI spending.

How do you tell a great stock from a merely good one? Run these six simple tests, from free cash flow to return on invested capital.

Warren Buffett may be known for picking individual stocks, but he also loves investing in low-cost ETFs.

Amazon and Alphabet are my two favorite "Magnificent Seven" stocks to own for the long term.

Nvidia and Micron have been two of the best artificial intelligence (AI) semiconductor stocks to own, but the easy gains may be over.

David Gardner is looking for the kind of company whose customers may never notice the AI at all.

AI stocks had a two-week crash, but Nvidia CEO Jensen Huang isn't worried.

What comes next for Elon Musk's brainchild?

Shareholders in these big spenders face an uncertain future.

The S&P 500 is trading near record levels as artificial intelligence (AI) stocks fuel the market higher.

Buffett warned about stock valuations in May, but Berkshire has been investing more aggressively since then.