piotroski
Piotroski F-Score Across 15 Markets: Where It Works, Where It Doesn't
We ran the Piotroski F-Score on 15 exchanges with MOC execution and data quality guards. Spread is positive on 9, negative on 6. Score 8-9 beats the local benchmark on 10 of 15. Range: +12.0% (Thailand) to -7.2% (India). Avoidance works on 12 of 15.