Renko Chart

A Renko chart is a time-independent price charting method that plots price movements using fixed-size blocks called 'bricks' — a new brick is added only when the price moves by a predetermined amount (the brick size) in either direction, completely ignoring time and volume. Bullish bricks (typically white or green) are added when price rises by the brick size, and bearish bricks (black or red) are added when price falls by the brick size. Because Renko charts filter out minor price fluctuations below the brick size threshold, they present an exceptionally clean visual representation of trends, support and resistance levels, and chart patterns — eliminating the noise present in time-based charts. Renko charts are particularly useful for identifying strong trends, horizontal support and resistance clusters (where many bricks have reversed direction), and classic chart patterns like double tops, head and shoulders, and triangles in a cleaner format. In Indian equity and F&O markets, Renko charts are used by technical traders who prefer to focus purely on price direction rather than time — particularly useful for positional and swing trading strategies in Nifty 50 and mid-cap stocks.