Market Data Basics

Whether you’re an investor, developer, or active trader, having access to reliable and timely stock market data is crucial. In 2025, numerous platforms offer real-time, historical, and fundamental data — some free, others paid — depending on your use case. This guide lists the best sources for U.S. stock market data and helps you choose…

Stock market data is the foundation of modern investing and trading. It refers to the information generated by financial markets about the performance and activity of stocks, indexes, and other securities. Whether you’re a beginner or an advanced trader, understanding what stock market data is — and how to use it — is crucial for…

Stock market data comes in various forms, but two of the most commonly used types are real-time data and end-of-day (EOD) data. Understanding the differences between them is crucial for selecting the right tools, strategies, and platforms based on your trading or investing goals. What Is Real-Time Stock Data? Real-time stock data reflects market prices…

In a world full of free stock screeners, trading apps, and financial websites, it’s tempting to rely on free stock data for your investing and trading decisions. But is free data reliable, or could it hurt your strategy? This article explores the pros and cons of free stock data, its accuracy, and whether it’s suitable…