The bull market on Wall Street persists, aided by stocks like Nvidia and Microsoft, which are posting tremendous results on the back of the artificial intelligence (AI) boom. Knowing when to invest with the market near all-time highs is difficult.

The rapidly growing adoption of artificial intelligence (AI) has given shares of many companies a big boost in the past couple of years, and that's not surprising as this technology is expected to impact the global economy in a big way.

Analysts have been busy updating their discounted cash flow models and price targets for Nvidia (NVDA) after the most important AI company in the world failed to give the sort of blow-out revenue guidance Wall Street has come to expect.