Stock Screening Tools Explained: An Educational Guide

There are tens of thousands of listed companies worldwide. A stock screener is a research tool that narrows that list down using criteria you choose, so you have a shorter list to study in detail.

How a screen works

A screen applies filters to company data. Typical filters include:

• Size: market capitalisation.
• Valuation: measures such as price-to-earnings or price-to-book.
• Quality: profitability, debt levels and cash flow.
• Region and sector: where a company is listed and what it does.

The result is a list of companies that match the filters. It is a starting point for research, not a recommendation.

Using screens sensibly

• Understand what each measure means before filtering on it.
• Read the underlying company reports; data can be out of date or incomplete.
• Remember that a company passing a screen says nothing certain about its future share price.
• Keep diversification and risk in mind for whatever you research.

Limits of screening

Screens rely on historical, reported data. Markets look forward, and circumstances change. No screen removes investment risk.

Learning more

Alpesh's education programme teaches how screening fits into a wider research process. If you would like an educational look at your current holdings, the Free Portfolio Review is free and takes a few minutes to request.

Important information

Investor education only, not financial advice. Alpesh Patel is not a pension adviser. Investments can go down as well as up. Past performance is not a guide to future returns.

Request your Free Portfolio Review or book a 20-minute call.