Short-term mean reversion trading on equity indexes is a popular trading style. Often, price-based technical indicators like RSI, CCI are used to assess if the stock market is in overbought or oversold conditions. A new research article written by Chainika Thakar and Rekhit Pachanekar explores a different indicator – TRIN, which compares the number of advancing and declining stocks to the advancing and declining volume. TRIN’s advantage is that it’s cross-sectionally based and its calculation uses not only price but also volume information. Thakar& Pachanekar’s research paper is useful for fans of indicator’s based trading strategies and offers a short introduction to TRIN’s calculation together with an example of mean-reversion market timing strategy written in a python code.

Authors: Chainika Thakar, Rekhit Pachanekar

Title: Trading Index (TRIN) – Formula, Calculation & Strategy in Python

Link: https://blog.quantinsti.com/trin/

Abstract:

In order to assess the strength of the market, Richard W. Arms, Jr. invented the TRIN index in 1967, and it is used for measuring the relationship between market supply and demand. The TRIN index is successfully used to find out the market sentiment. Moreover, future price movements are indicated by TRIN since it generates overbought and oversold levels to find out when the price index may change direction. Based on the value of TRIN, a trader can find out if there is an upward or downward trend in the market and can make decisions to trade accordingly. TRIN can be calculated in Python in an efficient manner. We will use TRIN along with bollinger bands to create a trading strategy which generates signals of buy and sell according to the crossover of these indicators. We use the S&P500, DJI and NASDAQ-100 price data in this strategy and find that it generates a decent return with low maximum drawdowns. This will be beneficial for traders who prefer low risk.

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