In this video, I explain the fundamentals of O-H-L-C bar charts and how we can use them as a tool for swing trading, day trading, and investing. We explore how these charts apply to options, stocks, cryptocurrencies, and futures by focusing strictly on price action. I demonstrate how to interpret each component—the Open, High, Low, and Close—and how they represent market movements within specific time frames. By analyzing these elements, we can make informed decisions about our future trades and investments. We also observe the real-time formation of O-H-L-C bars using Bitcoin charts and discuss the use of Webull as a charting platform to enhance our trading strategies.