Cheap stocks on book value whose finances are improving on at least 8 of Piotroski's 9 tests.
Most cheap stocks are cheap for a reason. Joseph Piotroski showed that among them, the ones with rising profitability, falling leverage and better margins went on to outperform the rest. The F-Score separates value from value traps using only the latest two annual reports.
Based on Value Investing: The Use of Historical Financial Statement Information (Joseph Piotroski, 2000).
$10,000 in this list since 2016
Rebuilt every month from the data public at the time
Per year
+10.8%
All stocks +9.4%, S&P 500 +13.8%
Worst fall from a peak
-48%
All stocks -35%
Months ahead of all stocks
45%
120 months tested
Stocks held, on average
19
Equal weights
Past 12 months
+15.0%
All stocks +4.1%, S&P 500 +12.4%
Volatility, per year
28%
All stocks 22%
Sharpe ratio
0.42
All stocks 0.40; return over cash per unit of volatility
Replaced each month
23%
Share of the list that changes at a rebalance
Live since Oct 19, 2026. Holding the list as published, rebought at each month end: +3.8% against +2.1% for all stocks and +0.7% for the S&P 500, to Oct 30, 2026. Too short a period to read much into.
High F-Score value
All US stocks, equal weight
S&P 500 (price only)
Year by year
Portfolio
2016from Oct 31
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026to Oct 19
This list
+15%
+7%
-11%
+34%
-1%
+48%
-10%
+23%
+3%
+9%
+5%
All US stocks
+12%
+19%
24 stocks on the list today
As of the close on Oct 30, 2026; 1 joined and 1 left since Oct 29, 2026