Piotroski F-Score: How Value Investors Avoid Value Traps

Piotroski F-Score explained: what it measures, why it matters for value investing, and how investors use it to screen for improving fundamentals.

What is the Piotroski F-Score?

The Piotroski F-Score is a 0–9 scoring system designed to identify financially strong value stocks by evaluating profitability, leverage/liquidity, and operating efficiency.

Why it matters

  • Improving fundamentals reduce the chance of value traps
  • Pairs well with cheap valuation screens
  • Helps prioritize quality among value candidates

Use scores with valuation

Combine intrinsic value and margin of safety with quality signals.

FAQs

Is a high F-Score enough to buy a stock?▼

No. It is a screening tool. Always consider valuation, business model, and risk.

What score is “good”?▼

Many investors prefer higher scores (e.g., 7–9), but it depends on the strategy and context.

Related

Intrinsic Investor is for education and research only. Not financial advice.