when you first encounter a stock screener you re likely to be overwhelmed there will be dozens of categories to view both on the technical side and the fundamental side so before you dive in decide which side of the valley you re on technical or fundamental consider what you re looking for what your priorities are and what types of financial instruments might be of interest then you can begin to explore what the screener has to offer 
if your focus is on the short term you are likely to be drawn to the multiple technical tools available charting alerts momentum studies rsi and more technical studies if you re focused on a particular stock or etf you can set alerts for when that particular stock crosses a set price level or for when its rsi hits overbought sold for example if you re a longer term investor you ll find plenty of fundamental data sometimes referred to as technical data such as eps average daily volume market capitalization and the like such data can help you construct a portfolio keeping in mind that you have a longer term interest in the company beyond just the latest headlines popular stock screenersthere s many stock screeners to choose from below are three of the more widely used stock screeners that have become go to tools for both novice and seasoned investors finviz stands out for its user friendly interface and comprehensive set of features investors can quickly screen stocks based on various criteria visualize data through charts and stay updated with real time market information finviz s heat maps and performance charts add an extra layer of depth to the screening process 1yahoo finance is a household name in financial news but it also offers a robust stock screening tool integrated seamlessly with its extensive financial news and analysis platform yahoo finance s screener allows users to filter stocks based on a wide range of fundamental and technical parameters it also includes analyst recommendations and financial statements 2stockfetcher caters to traders and investors who appreciate the flexibility of creating custom filters with a powerful scripting language stockfetcher enables users to define intricate conditions for screening that may be a little more technical than the options above it s a great choice for those who want to fine tune their strategies and identify stocks that align with specific technical patterns or criteria 3