Free stock calculators

Frequently asked questions

• What is the best tool to analyze stocks?

  The one that matches the decision. For idea generation, a stock screener that filters on fundamentals; for valuing a specific company, discount-rate calculators like the WACC and cost of equity tools here; for income planning, a dividend calculator working from real payout history. For ranking many stocks at once, systematic scoring like MonkScore, which grades 8,000 companies on 149 fundamental ratios, replaces hours of manual comparison.

• What are some free stock analysis tools available?

  The five calculators on this page — WACC, cost of equity (CAPM), dividend income, dividend reinvestment and Kelly position sizing — are free with no signup and pre-filled with real company data. Beyond calculators, most brokers include a basic screener and charting for free, and SEC EDGAR gives every investor free access to the underlying financial statements.

• Can AI or ChatGPT analyze stocks?

  Language models are good at summarizing filings, news and earnings calls, but they do not reliably compute: they predict text, so figures can be plausible rather than correct, and their training data lags the market. Treat AI chat as a reading assistant and keep the arithmetic in systems built to calculate — these calculators for single questions, and systematic scoring like MonkScore for grading whole markets from reported financial data.

• What is the 3-5-7 rule in stocks?

  A trader's money-management heuristic: risk no more than 3% of your capital on any single trade, keep no more than 5% exposed across all open positions, and aim for average winners about 7% larger than average losers so the math survives a losing streak. It is a rule for managing trades, not a method for analyzing businesses — fundamental analysis asks what a company is worth, not how much to risk on a price move.

• How can beginners start analyzing stocks before buying them?

  Start with businesses you understand and read the numbers before the story: revenue growth, margins, debt and free cash flow from the financial statements. Use free calculators like these to turn those numbers into decisions — what return the stock must clear, what its dividend stream is worth — and keep a watchlist so you compare candidates instead of judging one in isolation. A scoring system helps most at this stage: it shows how a stock ranks on the same ratios professionals use, before any money is at risk.

• What is the best free stock calculator?

  It depends on the question. For dividend income, the dividend calculator (and the DRIP calculator for reinvestment); for discount rates in a valuation, the WACC and cost of equity calculators; for position sizing, the Kelly calculator. All are free, with no signup, and pre-filled with each company's real reported data.