Stock Screener for Beginners: How to Shortlist Stocks Using Filters

Key Takeaways

1. A stock screener narrows thousands of listed stocks down to a short list based on the filters you choose.
2. Filters such as revenue growth, profit growth, debt-to-equity, return on equity and P/E ratio help you apply fundamental analysis in a structured way.
3. A screener gives you a starting list, not a buying decision. Each shortlisted stock still needs a closer look.
4. Using too many filters, or very strict ones, can remove good businesses from your list.
5. Comparing shortlisted stocks within the same sector gives a fairer picture than comparing across sectors.

Thousands of stocks are listed on Indian exchanges, and reading the annual report of every company is not possible for a beginner.
 

This is where a stock screener helps. It lets you set a few conditions and see only the stocks that meet them.
 

This blog explains  what a stock screener is, which filters can support  fundamental analysis, and how beginners can build a shortlist step by step.

What Is a Stock Screener?

A stock screener is an online tool that filters stocks based on financial and market data. You choose the conditions available as per the screener and its data coverage. Some examples of the conditions include minimum profit growth or maximum debt, and the screener shows only the companies that match.
 

It works like the filters on a shopping website, turning a long list into a manageable one.

Screeners may use  quarterly results, balance sheets, financial ratios and price data. Some also offer technical filters based on price movements and trading activity. Investors can choose fundamental or technical filters depending on their research approach. 

Why Fundamental Analysis Matters While Screening

Fundamental analysis involves  studying a company's business and financial position and valuation  to assess its performance and prospects. It looks at factors such as sales, profits, debt, cash flow and valuation.

A screener speeds up the first part by removing companies that do not meet your basic standards.

Key Filters to Use in a Stock Screener

Here are common filters beginners can start with. Any values used should be adjusted to your goals and the sector you are studying.

1. Market Capitalisation

Market capitalisation indicates the market value  of a company’s outstanding shares. Investors may use it to group companies by size, but company size alone doesn’t determine business quality or investment risk.

2. Revenue Growth

Revenue growth shows how a company's sales have changed over time. Reviewing three to five years of data can help you assess the trend, but also consider the reasons behind the growth and whether it is likely to continue.

3. Profit Growth

Compare profit growth with revenue growth. If sales rise but profits fall, it may indicate higher costs, pressure on margins or other factors that need further investigation.

4. Return on Equity (ROE)

ROE measures a company’s profit relative to  shareholders' equity. Reviewing ROE over several years can help you assess its performance, but also check the company's debt levels and compare ROE with companies in the same sector.

5. Debt-to-Equity Ratio

The debt-to-equity ratio compares a company's debt with its shareholders' equity. A lower ratio may indicate lower reliance on borrowing, but appropriate levels vary by sector. Review this ratio alongside cash flow and the company's ability to meet its debt obligations.

6. Price-to-Earnings (P/E) Ratio

P/E ratio compares a company’s share price with its earnings per share. Compare it with the company’s past valuations and similar companies in the same sector. A low P/E doesn’t automatically mean a stock is undervalued, and the ratio may not be useful when earnings are negative. 

Here's a simple way to read these filters:

How to Shortlist Stocks Using a Stock Screener: Step by Step

Step 1: Decide your goal. Steady long-term businesses and fast-growing smaller companies need different filters.

Step 2: Start with three or five filters. Begin with criteria such as revenue, size, profit growth, ROE and debt. You can add other filters based on your goals and the sector you are studying.

Step 3: Review the results. If your stock screener returns too many companies, adjust a filter to narrow the list. If it returns very few, review whether your criteria are too restrictive. Keep the filters relevant to your research rather than changing them only to get a particular number of results.

Step 4: Compare within sectors. A bank and a software company have very different balance sheets, so group your shortlist by sector.

Step 5: Study each company further. Read the annual report, review management commentary, examine cash flow and valuation, and consider the company's business risks before making an investment decision.

Common Doubts About Using a Stock Screener

Does a stock screener tell me which stock to buy?

Not necessarily. It simply indicates which stocks qualify based on your criteria. You need to analyse each company in more detail before making an investment decision.

Can I rely on past numbers alone?

Past data shows how a company has performed, but it does not guarantee future results.

Should I use as many filters as possible?

Not really. Too many strict filters can remove good companies that miss one condition by a small margin.

Are the same filter values right for every sector?

No. Suitable filter values can vary by sector. Banks, for example, have different balance-sheet structures from non-financial companies, so their debt levels should not be assessed in the same way. Compare companies with similar business models and use sector-appropriate measures.

How mastertrust Helps With Stock Research

mastertrust offers a trading and demat account, along with research updates and market insights. These resources can support your stock research.

Once you have a shortlist from your  stock screener, you can use the available mastertrust platform features to monitor stock prices and place orders. You can also read our guide on how to pick stocks using fundamental analysis and learn how to compare stocks of the same sector.

Final Thoughts

A stock screener helps beginners narrow a large list of stocks to companies that match their selected criteria. Treat the results as a starting point, and use fundamental analysis, sector comparisons and your investment goals to assess each company before making a decision.

Frequently Asked Questions (FAQ)

1. What is a stock screener used for?

A stock screener filters listed stocks based on conditions you set, such as profit growth, debt or valuation, to help you build a shortlist.

2. Which filters should a beginner start with?

Market cap, profit growth, ROE and debt-to-equity are simple filters to begin with. You can add valuation filters like P/E later. Suitable filters depend on the sector and the investor's research goals.

3. Is a stock screener enough for fundamental analysis?

No. It covers the first step. You still need to study annual reports, cash flow, management quality and business outlook.

4. How often should I run a stock screener?

You can review your stock screener after quarterly results and when new company information becomes available. The frequency depends on your research approach and how often the screener updates its data.

5. Can screener results be different on different platforms?

Yes. Platforms may use different data sources, update timings or ratio formulas, so small differences are possible.

6. Can I buy shortlisted stocks through mastertrust?

Yes. You can place orders for eligible stocks through a mastertrust trading account, subject to account opening, KYC, verification and applicable trading requirements.