PS · Composite accounting · Piotroski (2000)

Piotroski F-score

Long minus short decile portfolio, value-weighted, market-adjusted. Quarterly, 1972Q1 to 2024Q4.

Expected return · posterior mean, % per year, averaged over the window
Next quarter
2026Q4
8.22%
95% interval 0.84% to 15.41%
Next year
2026Q4–2027Q3
8.23%
95% interval 0.72% to 15.41%
Next five years
2026Q4–2031Q3
8.28%
95% interval 0.24% to 15.50%

Forecast made 16 Sep 2026, conditioning on this portfolio's OAP returns, which end 2024Q4. The 7 quarters between then and 2026Q4 are unobserved and are integrated out under the model.

Cumulative market-adjusted return

+6,935% since 1972Q1 · log scale

Past performance, annualized

Window Mean Vol. Sharpe t
1972Q1–2024Q4 10.97% 24.73% 0.44 3.23
2020Q1–2024Q4 −2.50% 27.88% −0.09 −0.20
2024Q1–2024Q4 32.45% 26.57% 1.22 1.22

Forecast Sharpe ratio, annualized

Window Mean 95% interval P(neg)
2026Q4 0.33 0.03 – 0.62 0.01
2026Q4–2027Q3 0.33 0.03 – 0.62 0.02
2026Q4–2031Q3 0.31 0.01 – 0.61 0.02
Category
Composite accounting
Form
Continuous
Data
Accounting
Sorted on
High minus low
Names per leg
117 long / 133.5 short median · 64 at the 10th pctile
Original sample
1976–1996