The graphics processing and AI specialist has recently climbed to record highs. Is it too late to buy?

It's also the first company not named Apple to break various trillion-dollar valuation points. Apple was the first to reach $1 trillion, $2 trillion, and $3 trillion marks. With Nvidia reaching $4 ...

Big Tech has led the S&P 500 higher. Now it has to prove it can keep the rally going.