The top-down approach is a method of analyzing the macro environment first when making investment decisions. It starts with the big picture of the overall economy and markets, then narrows down to industry analysis, and finally selects potentially successful companies to invest in. This approach can effectively screen out underperforming industries and identify promising companies.

Macro analysis guides capital allocation
The top-down approach analyzes macroeconomic factors like GDP growth, interest rates, inflation etc first. Strong macro growth often indicates more investment opportunities. After determining the allocation to different asset classes like stocks and bonds, further analysis is done at the sector and industry level based on growth prospects.
Industry analysis spots high-growth areas
Analyzing industries within growing sectors can uncover promising opportunities. For example, software and renewable energy are expected to see continued growth. Within these industries, the top-down approach identifies companies with competitive advantages, strong management and growth runways.
Fundamentals identify winning stocks
After identifying high-growth industries, individual companies are analyzed based on financial metrics like revenue, earnings growth, margins etc. Companies with accelerating growth rates, quality management and reasonable valuations often make good investments.
The top-down approach provides a framework to methodically analyze the macro picture down to the most promising investment prospects. It helps allocate capital to provide the best risk-adjusted returns.