In just a couple of years, Nvidia went from a notable tech stock to the most valuable company in the world -- disrupting the balance of the S&P 500, the Nasdaq Composite, and now the Dow Jones Industrial Average. This is great news for investors who are bullish on Nvidia, but not for folks who believe Nvidia is overvalued.

The Dow Jones Industrial Average and the other major indexes increased gains around the lunch hour during Friday's abbreviated trading session. Dow Jones component Nvidia recouped Wednesday's losses while a connectivity stock soared ahead of earnings on the stock market today.

The Dow Jones notched a 0.4% gain, as it revisited the 45,000 level but closed just below it. Blue chips also briefly topped the new milestone Wednesday, before closing lower. The

The past two years have been absolutely phenomenal for Nvidia (NASDAQ: NVDA) investors, as shares of the graphics card specialist shot up 736% during this period once it became evident that the company is going to play a central role in the proliferation of artificial intelligence (AI).

Nvidia stock has been on a disappointing run since its earnings last week but the good vibes looked set to return in a holiday-shortened session Friday.