Nvidia is near record highs amid renewed optimism about investment in artificial intelligence from major technology companies.

Nvidia has delivered such massive gains in recent years that it's easy to overlook how the stock has performed over the short term. Most investors would be happy with a 20% gain in a year. Nvidia's share price has soared over 20% in the last five weeks.

Nvidia stock is trading at record highs, but that's not deterring top Wall Street analysts from being bullish. Bank analysts have been hiking their price targets for the chip titan in recent weeks, predicting more upside even as the stock has seen a meteoric rise over the past year.