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.