Authors: Carlo Zarattini, Andrea Barbon, Andrew Aziz

Opening Range Breakout strategy research paper analyzing profitable day trading in U.S. stocks
Research paper examining the profitability of the Opening Range Breakout day trading strategy.

Opening Range Breakout (ORB) Day Trading Strategy

The Opening Range Breakout (ORB) strategy is a popular intraday trading method that attempts to capture strong price movements immediately after the market opens. This research paper evaluates whether such a day trading strategy can generate consistent and risk-adjusted returns in U.S. equity markets.

Dataset and Research Methodology

To evaluate the effectiveness of the ORB trading strategy, we analyze a dataset containing more than 7,000 U.S. stocks traded between 2016 and 2023.

The study focuses primarily on the 5-minute Opening Range Breakout, while also comparing alternative time frames such as 15-minute, 30-minute, and 60-minute opening ranges.

Stocks in Play and Day Trading Opportunities

A key contribution of this research is the focus on Stocks in Play. These are stocks experiencing unusually high trading activity due to company-specific news, earnings announcements, or other fundamental developments.

By restricting trades to these highly active securities, the strategy significantly improves performance even after accounting for transaction costs.

Performance of the ORB Strategy

The results demonstrate strong performance for the ORB day trading strategy.

A portfolio consisting of the top 20 Stocks in Play achieved:

• More than 1,600% total net return
• Sharpe ratio of 2.81
• Annualized alpha of 36%

For comparison, a passive investment in the S&P 500 generated approximately 198% total return during the same period.

Analysis Across Multiple Time Frames

The research also compares ORB strategies using different opening ranges, including 5-minute, 15-minute, 30-minute, and 60-minute intervals.

These variations help determine how sensitive the strategy’s performance is to the choice of time horizon.

Stock-Level Performance Analysis

In the final section of the study, we present detailed statistics for the 25 best and worst performing stocks under the ORB strategy.

This analysis provides additional insight into which types of stocks are most likely to generate strong intraday trends.

Key Takeaways

Full Research Paper (Recommended)

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