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Investing 101 - Module 5.1
GuruFocus· 2025-10-16 16:57
In this module, you'll learn how to use Guru Focus's professional-grade research tools to identify stocks that meet your unique approach. We'll discuss things like screeners, model portfolios, and trade data from top investors and company insiders. First, we have to talk about stock screeners.Screeners are incredibly powerful tools that let you quickly filter through thousands of stocks and identify just the ones that meet the criteria you're most interested in. By setting different parameters such as valua ...
GuruFocus Back-testing Tool Explained: Test Before You Invest
GuruFocus· 2025-06-17 21:24
Back Testing Methodology - Back testing involves using pre-existing screeners, such as a high-quality screener, with filters already set [1] - The process includes selecting a number of stocks, exemplified by selecting 20 stocks in this case [2] - Ranking is based on factors like return on equity and 10-year median, with options for largest or smallest values over the last three years [3] - Rebalancing can be set at intervals, such as every 12 months [3] - The system calculates performance over each rebalance period, generating performance charts [3] Performance Metrics - The back testing tool calculates alpha, beta, and Sharpe ratio [4] - Parameters can be adjusted based on existing screeners, allowing for modification [4]