Calif., disclosed several new stock trades involving Big Tech names like Nvidia, Apple, Alphabet and Amazon that occurred in the last month.

Nvidia’s market valuation surpassed Apple’s on Tuesday, making it the world’s most valuable publicly traded business once more. TakeAway Points: Nvidia’s market valuation overtook Apple’s, making it the world’s most valuable publicly traded business once more.

Putting valuations on publicly traded companies is tricky because so much is tied to stock prices -- and stock prices are influenced by many things a company can't control, such as the economy,

Pelosi's latest stock trades reveal new bullish bets on Alphabet and Amazon, while trimming Apple and Nvidia holdings

Tesla falls on Trump’s plans to roll back EV production targets, Apple gets a downgrade, and 3M and Charles Schwab score earnings beats.

Nvidia reclaimed the top spot in global market value as surging GPU demand propelled its market cap to $3.46 trillion

Nvidia has reclaimed its position as the world’s most valuable publicly traded company, surpassing Apple in market capitalization on Tuesday. At the close of trading, Nvidia’s market cap reached approximately $3.

There’s a little problem, though: most of the decline in the seven comes down to one company. Apple is down 14 per cent since Christmas. Tesla is down 11 per cent, but is only a third of Apple’s weight in the S&P 500. The rest of the seven are meandering along, a bit above (Nvidia) or below (Alphabet) the performance of US big caps, generally.

Artificial intelligence startup Perplexity launched an agent-based assistant for Android devices on Thursday as it looks to take on larger rival OpenAI's ChatGPT and incumbent assistants such as Apple's Siri and Amazon's Alexa.

Perplexity comes with the ability to handle real-world tasks like ride-hailing and restaurant bookings to make it a practical companion for everyday activities.

The Jeff Bezos and Nvidia-backed startup enters the AI assistant race with its versatile Perplexity Assistant.