XST, NVIDIA, and OpenAI Inquiries

Hello everyone, I am very new to trading and this whole stock market thing. I am hearing about the President supposedly putting a large amount of money into certain stocks, XST, NVIDIA, and OpenAI. Should I pounce on this opportunity? All I know about stocks is that you just put some money in there and it’ll just go up by a small percentage. I can only afford to put like $20 into the stock, I need a better understanding on this before I just put something in the stock. submitted by /u/Character-