1. Definition: The Piotroski Score is a metric used to evaluate and screen stocks by assessing their financial strength

2. Purpose: It is used to find value stocks, i.e., those stocks that trade at lower prices than their fundamental suggested values

3. Criteria: The score is based on nine parameters related to profitability, leverage, liquidity, source of funds, and operating efficiency. A point is awarded for every parameter that is met.

4. Interpretation: If a company has a score of eight or nine, it is considered a good value. If a company has a score of between zero and two points, it is likely not a good value.

5. Creator: The Piotroski Score was named after Chicago Accounting Professor Joseph Piotroski, who devised the scale1.