What Is a Renko Chart? Price Bricks Without a Fixed Time Axis

Unlike time-based candles, Renko charts draw a brick whenever price moves by a set amount. Filtering small fluctuations makes trends clearer, but delays signals and removes information.

What is a Renko chart?

Renko takes its name from the Japanese word renga, meaning brick. Unlike charts built around time or measures such as volume, Renko uses price movement alone. A new brick appears when price moves by the predefined brick size; smaller moves draw nothing.

An hour of little movement can produce no bricks, while a sharp move over a short period can produce several rapidly. The result resembles stairs with irregular time intervals.

How are bricks drawn?

Assume a brick size of $100.

Requiring a larger move to reverse filters small fluctuations so that more substantial directional changes appear.

Advantages: Filtering noise to reveal trends

• Removes small fluctuations: Minor movements do not form bricks, making broader direction easier to see.
• Intuitive trends: A long sequence of one color is easy to interpret as an intact trend.
• Support and resistance: Simplified price levels make support and resistance areas easier to assess.

Limitations: Delay and missing information

Renko's simplicity also creates disadvantages.

Choosing an appropriate size is particularly difficult in volatile crypto markets. Different settings can substantially change the appearance and interpretation of the same asset.

How should Renko be used?

Renko simplifies trends; it does not predict future prices. Neat upward bricks do not guarantee continued gains, and a delayed reversal brick can allow losses to grow. Combine it with candles and volume and define stop criteria beforehand.

This article provides information and is not investment advice. Cryptocurrency is volatile and principal can be lost. No charting technique guarantees returns, and decisions and their consequences remain your responsibility.