Intraday Stock Data Explained: What It Is, How It Works, and How to Use It for Charts, Alerts, and Backtesting
April 23, 2026
Intraday stock data refers to price updates that occur within the same trading day, rather than just a single closing price. Instead of seeing only where a stock finished, intraday data shows how its price moved throughout market hours.If you have ever viewed a 5-minute candlestick chart or created a price alert that triggers during the day, you were using intraday data. It powers stock charts…