Stax Labs

Fundamental Stock Screener for Strategy Builders

A good stock screen is not just a list of tickers. It is the first rule in a strategy. Stax helps you screen companies and then connect those filters directly to testing and monitoring.

Screen StocksLearn Screening
Stax Labs stock screening workflow showing company filters and validation before a backtest.

What users get

Universe
5,000+ stocks
Filters
Fundamentals
Use
Screen to backtest

The job it solves

Screen stocks by fundamentals, sectors, valuation, growth, quality, and strategy rules before running a backtest.

Built for the actual investing workflow

Stax is strongest when a visitor can move from learning to building to testing without switching tools or losing the original idea.

Find companies that match a clear investment thesis.

Filter by business quality, valuation, growth, leverage, and sector.

Avoid random watchlists by turning screens into repeatable strategy rules.

Use the same filters in a backtest to see whether the idea had historical merit.

How it works

A practical path from an idea to evidence, then from evidence to practice.

  1. 1

    Define what a company must look like to enter the universe.

  2. 2

    Apply metrics such as profitability, valuation, growth, and balance-sheet strength.

  3. 3

    Inspect the companies that pass and refine overly broad or narrow filters.

  4. 4

    Send the screen into a strategy, ranking model, and backtest.

Built for strategy creation, not just one-off ticker discovery.

Filters feed into backtesting so users can test the screen as a rule.

Plain-English explanations help beginners understand why a metric matters.

Learn the concepts behind the tool

Stock Screening FundamentalsHow to Build a Stock StrategyHow to Use P/E Ratio in InvestingHow to Use FCF Yield in InvestingHow to Use D/E Ratio in Investing

Start with a template

Value Growth Strategy TemplateA stock strategy template for finding companies with profitable growth, reasonable valuation, and enough momentum to confirm market interest.Momentum Rotation Strategy TemplateA stock strategy template for rotating into stocks with stronger recent price momentum while keeping position and drawdown controls visible.Dividend Quality Strategy TemplateA stock strategy template for finding dividend-oriented companies with quality fundamentals instead of chasing yield alone.

Questions people ask

What makes a stock screener useful for strategy building?

A strategy-ready screener lets you reuse the same filters inside a backtest instead of treating screening as a separate research chore.

Can I screen by fundamentals?

Yes. Stax is designed around fundamental filters such as profitability, valuation, growth, and balance-sheet quality.

Should beginners start with screening?

Screening is a good start if the user understands that filters are assumptions. The next step is testing whether those assumptions worked historically.

Ready to use fundamental stock screener for strategy builders?

Start with a clear idea, test the rules, and keep the risk visible before the decision gets emotional.

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