Alphabet-A (GOOGL)

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.

Quantinuum hit 99.9995% logical fidelity on its Helios system and holds $2.1 billion in cash, even as shares trade near 52-week lows and Morgan Stanley issues an Overweight rating.

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

D-Wave Quantum expanded its SkyWater foundry partnership and delivered Italy's first annealing quantum system, as QBTS shares remain down about 58% year to date ahead of earnings.

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.

Kevin O'Leary expects 65% of announced data center projects to fail, making permitted, powered sites scarce. What that means for Bitzero, CoreWeave and IREN.

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.

Apple's stock hit a $5 trillion market cap as investors bet on AI-driven growth through Siri, services, and a new foldable iPhone ahead of its Nov. 2 earnings report.

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

Shareholders in these big spenders face an uncertain future.