Key Takeaways Nvidia is set to report fourth-quarter results after the market closes Wednesday.The chipmaker is expected to post another quarterly sales record on strong demand for its advanced chips.

NVIDIA shares Friday afternoon dropping almost 4% to their critical 50 day moving average. Shares have seen considerable resistance at the $140.00 price level, which finally broke the stock lower today.

There's no doubt that the world's second-most valuable stock is important. But the AI harbinger has taken on a different role of late as other stocks have supplanted the "Magnificent Seven" as the engine of this year's gains.