We'll learn more on Wednesday, but there are plenty of reasons to buy Nvidia's stock ahead of time. While there's always a chance something disappointing could be revealed, Nvidia currently appears to be in too strong a position to meaningfully change its trajectory over the long term. Here are three reasons why Nvidia's stock is a buy today.

All of this suggests Nvidia may have a good deal of positive news to report on Nov. 20, and that may help the stock soar in the weeks ahead.

While there have been plenty of beneficiaries of these secular tailwinds, one of the most notable has been Nvidia (NASDAQ: NVDA). In a nutshell, the company's graphics processing units (GPUs), which were originally developed to craft lifelike images in video games, proved equally adept at powering AI models.