What Are Renko Charts?

Nov 14, 2023 |

Chart Types

Renko charts are a distinct method of charting that many traders employ to track price fluctuations within financial markets. These charts are characterized by the use of "bricks" which symbolize price shifts, where each brick is uniform in size and represents a specific, pre-established price interval. This article intends to delve into Renko charts more comprehensively, examining their historical roots, the approach to interpreting them, their merits, limitations, and their contrast with the widely used Japanese Candlestick charts.

Origin of Renko Charts


Origin and Functionality of Renko Charts:


Hailing from Japan's Edo period (1603-1868), Renko charts have a distinguished history of use in monitoring the price trends of rice futures. The term "Renko" is derived from the Japanese term "renga," signifying "brick," which is where the chart gets its name, with "ren" translating to "brick" and "ko" denoting "small."


The advent of Renko charts aimed at diminishing the impact of minor price changes and market noise, concentrating solely on substantial price movements deemed worthy of representation through a new brick. Characteristically, Renko bricks materialize in response to a specific price shift rather than at regular time intervals. Thus, the addition of bricks occurs only when price variations equal or exceed a predetermined threshold, resulting in a more seamless depiction of price trends.


Global adoption of Renko charts has surged, seeing usage among traders of various financial instruments, including stocks, futures, currencies, and commodities. They are highly favored by practitioners of technical analysis seeking to filter extraneous market data and gain improved insight into overarching market trends.


How to Read Renko Charts


To read Renko charts effectively, it is important to understand the basics of this charting method:


1. Determine the box size: Renko charts are constructed using boxes or bricks that represent a fixed price movement in the underlying asset. It is crucial to choose an appropriate box size based on the asset's volatility. A larger box size will result in fewer boxes on the chart, while a smaller box size will result in more boxes.


2. Identify the trend: Renko charts are adept at highlighting market trends. If the boxes consistently move in the same direction, it indicates a strong trend. Conversely, if the boxes change direction frequently, it suggests a weak or choppy trend.


3. Spot reversal signals: Renko charts can assist in identifying potential reversals. A reversal signal occurs when the boxes change direction, such as transitioning from an upward movement to a downward movement or vice versa. These signals can indicate possible trend reversals.


4. Utilize other technical indicators: Renko charts can be complemented with additional technical indicators to confirm signals and enhance analysis. For instance, incorporating a moving average on a Renko chart assists in evaluating the direction of the trend and determining its strength.


Reading Renko charts necessitates practice and experience. By grasping the fundamental concepts and becoming familiar with this charting method, traders can make more informed decisions and leverage the unique insights provided by Renko charts.


Pros and Cons of Renko Charts


Advantages and Limitations of Renko Charts:


Advantageous Features:


Improved Trend Visualization: Renko charts excel at clarifying market trends by incorporating boxes that only adjust with significant price movements, rendering the trend direction conspicuously visible.


Noise Reduction: The design of Renko charts is such that it filters out inconsequential market fluctuations, facilitating a cleaner and more streamlined representation of price trends and potential pivot points.


Defined Trading Signals: The structure of Renko charts offers straightforward trading signals. The formation of a new box can serve as an indicator for potential entry or exit points in trading.


Ease of Interpretation: Compared to more complex charting systems, Renko charts are relatively easy to interpret once familiar with their setup, offering a straightforward view of market trends.


Limitations to Consider:


Restricted Data Display: Renko charts focus purely on price action, omitting other potentially relevant market data like volume or time intervals, which may limit the scope of analysis.


Potential for False Signals: Despite their clarity, Renko charts, akin to other chart types, can produce misleading signals that necessitate confirmation through additional indicators or methods of analysis.


Box Size Dynamics: Selecting an appropriate box size for Renko charting can pose challenges, as it must be tailored to match the asset's volatility—a critical step for effective utilization.


Need for Complementary Analysis: To fully capitalize on the insights Renko charts offer, traders may need to supplement them with other types of technical indicators, ensuring a more comprehensive approach to market analysis.


While Renko charts are esteemed for their ability to delineate market trends and provide clean charting devoid of minor volatility, it is imperative to acknowledge their limitations. In deploying Renko charts within trading strategies, a balanced view that incorporates other analytical methods is advised for a well-rounded assessment.


Renko Charts vs. Japanese Candlestick Charts


Renko charts and Japanese candlestick charts are distinct types of charts utilized in technical analysis. Here are some key differences between the two:


Time vs. Price: Japanese candlestick charts are time-based, reflecting price movements over specific time periods (e.g., 1 hour, 1 day). In contrast, Renko charts are price-based, illustrating price movements based on predetermined price intervals (e.g., $1, $10).


Visual Appearance: Renko charts are composed of colored boxes (usually red or green) representing price movements. Japanese candlestick charts consist of candlesticks that can be colored differently to signal bullish or bearish activity.


Noise: Renko charts mitigate noise by only changing direction when a predetermined price movement is met. This filtering reduces the impact of minor price fluctuations compared to candlestick charts.


Trading Signals: Both Renko charts and Japanese candlestick charts can provide trading signals. Renko charts generate signals when a new box is formed, while candlestick charts generate signals based on the shape and color of individual candlesticks.


Complexity: Renko charts tend to be simpler to read and understand compared to candlestick charts. Candlestick charts provide more detailed information, including opening and closing prices, as well as the high and low prices for each time period.


Renko charts and Japanese candlestick charts serve as separate tools for technical analysis. While both can identify trading signals, the choice of chart type depends on the trader's preferences and trading strategy.


The Bottom Line


In conclusion, Renko charts are a useful tool for technical analysts and traders who are looking for a simpler way to interpret price movement. The chart’s unique construction, based on price movement rather than time, can help traders to identify key support and resistance levels and trends in the market. Renko charts also remove some of the noise that can be seen in traditional candlestick charts, making it easier to identify significant price movements.


However, Renko charts do have their limitations, such as a lack of detail on the price range of each box, and may not be suitable for all trading strategies. Traders should consider their individual needs and preferences when deciding whether to use Renko charts as part of their trading analysis.