Market profiles

In this first article on a series on market profiles, Michel Henry VERHASSELT (ESSEC Business School – Master in Finance, 2023-2025) explains the history behind this concept and defines its central themes.

Introduction

The concept of Market Profiles emerged as a response to the dynamic nature of financial markets, where prices are in constant flux due to the continuous flow of information. Peter Steidlmayer, a trader at the Chicago Board of Trade during the 1960s and 1970s, sought to develop a charting method that could capture the interplay between price and volume, reflecting the idea that, despite the constant price changes, there should be a fair value around which prices revolve at any given time.

In traditional charting methods like bar charts and candle charts, the emphasis is typically on plotting price against time. Steidlmayer, however, wanted to make volume immediately apparent on the chart. This emphasis on volume is crucial because it provides insights into the level of participation and conviction among market participants.

The development of Market Profile was influenced by various theories and disciplines. In particular, it drew inspiration from the concept of value investing articulated by Benjamin Graham and David Dodd, the statistical bell curve, and John Schultz’s work on minimum trend. By combining these influences, Steidlmayer aimed to create a charting technique that would not only reveal price movements but also offer a visual representation of the market’s perception of value.

Market Profile, as a charting technique, differs significantly from traditional methods. Instead of using standard bar charts with prices plotted against time, Market Profile organizes data in a way that reflects the distribution of prices at different levels. Each time period is represented by a separate column, with prices displayed in ascending order on the vertical axis. This organization provides a visual representation of how much time the market spent at different price levels, creating a histogram-like structure.

The resulting chart, with letters (A, B, C, D, etc.) representing Time Price Opportunities (TPO), helps traders identify key areas such as the Value Area (where the majority of trading activity occurred), the Point of Control (the most traded price level), and Single Prints (indicating areas of price discovery). These elements collectively contribute to a comprehensive understanding of market dynamics and help traders make more informed decisions.

Definitions

We define below the key terms to understand Market Profile: Volume, Value Area, and Point of Control.

Volume

Volume in the context of financial markets refers to the number of contracts or shares traded at during a specific time period. Volume is a crucial component in Market Profile analysis because it provides insights into the level of participation and conviction among market participants. High volume at a particular price level suggests a significant level of interest or agreement on the value of the asset at that point.

Volume helps us shape the Time Price Opportunities. A TPO represents a unit of time and price on a Market Profile chart. Each 30-minute period (or another specified time frame) is represented by a letter, forming a vertical histogram on the price axis. TPOs help visualize the distribution of trading activity at different price levels over time. By organizing price data into these time brackets, traders can identify patterns, trends, and areas of importance, contributing to a better understanding of market behavior.

Value Area

The Value Area represents the range of price levels that contain a specific percentage of the total traded volume (usually 70% of the day’s trading activity). Traders also use the Upper Value Area (where 15% of the volume is located above) and the Lower Value Area (where 15% of the volume is below), with the area in between considered the “fair value” zone. It helps traders identify the price levels that are deemed fair by the market. It provides insights into where the majority of trading activity occurred, offering potential support and resistance zones for future price movements.

Point of Control

Within the value area, we find the Point of Control. The Point of Control is the price level at which the most TPOs occurred during a specific time period. It is considered a point of balance and represents the price where the market found the most acceptance. It indicates the price level that had the most trading activity, suggesting a level of equilibrium where buyers and sellers found agreement. Traders often monitor the POC for potential shifts in market sentiment.

By understanding the interplay between these elements, traders can gain valuable insights into market dynamics, identify key support and resistance zones, and make more informed decisions in their trading strategies.

With this background and definitions, we can look further into the practice of market profiles and its closely related concept, volume profiles.

Why should I be interested in this post?

Students of finance interested in financial markets and trading would be the target audience of this post. I believe this technique to be relatively obscure despite its long history. We rarely see asset charts displayed as histograms as an effort to understand market behavior and participant psychology. I believe it is fundamental to consider that the market is made up of human actors, that these actors have their biases on price and value, and in turn that these biases’ success is represented as a function of volume. Even if a student does not subscribe to this understanding of markets, it would broaden his/her perspective and allow him/her to understand trading more generally.

Related posts on the SimTrade blog

   ▶ Michel VERHASSELT Difference between market profiles and volume profiles

   ▶ Michel VERHASSELT Trading strategies based on market profiles and volume profile

   ▶ Theo SCHWERTLE Can technical analysis actually help to make better trading decisions?

   ▶ Theo SCHWERTLE The Psychology of Trading

   ▶ Clara PINTO Strategy and Tactics: From military to trading

Useful resources

Steidlmayer P.J. and S.B. Hawkins (2003) Steidlmayer on Markets: Trading with Market Profile, John Wiley & Sons, Second Edition;

Steidlmayer P.J. and K. Koy (1986) Markets and Market Logic: Trading and Investing with a Sound Understanding and Approach, Porcupine Press.

Letian Wang (2020) Using Python for Market Profiles

About the author

The article was written in December 2023 by Michel Henry VERHASSELT (ESSEC Business School – Master in Finance, 2023-2025).