GDI RESEARCH
Independent Research for Better Investment Decisions
Independent, data-driven investment research designed to help investors make informed decisions through objective, transparent, and repeatable analysis.
Latest Release
Episode 2
Does the Ranking Matter?
Episode 2 tested whether the BRASS® ranking itself mattered. Using the same trading rules across different ranked portfolios, the results showed that higher-ranked companies produced substantially stronger historical outcomes, while broader portfolios provided greater diversification.
Explore GDI Research
📘 Smart Investing Made Easy
A practical guide to the Options Wheel Strategy for generating consistent investment income.
📊 Featured Research
Explore Episode 001 and download the Companion Guide.
🎥 Educational Videos
Watch educational videos on investing, quantitative research, and systematic trading strategies.