Strategy profile

Piotroski F-Score: The 9-Point Balance-Sheet Check | Backtest & Top Stocks 2026

Nine yes/no questions for the balance sheet, one point each, no weighting. Is the company improving fundamentally, or stuck in a downward spiral?

Save the strategy and StockScorer checks its rules for you every day. You'll get a heads-up whenever a stock crosses the upper or lower score threshold.

✓ Refreshed daily✓ Rule-based: no black box✓ Fully customisable
Total return in the backtest10 years to Q2 2026
Strategy
+140.3%
MSCI World
+240.1%

Gap to MSCI World: -99.9 percentage points total, -3.9 per year

81150220290359StartQ2 2017Q3 2018Q4 2019Q1 2021Q2 2022Q3 2023Q4 2024Q2 2026StrategyBenchmark (MSCI World)

Index, start = 100

Past performance is not a reliable indicator of future results.

+9.2%Return p.a. (backtest)
-3.9 ppvs. MSCI World p.a.
16,182Stocks analysed
SmallMidLargeCap classes
Classification of all stocks as of the latest data

What the profile looks like today

As of 11/15/2026
1,348High
4,886Medium
720Low
Classification in the universe
High 8%Medium 30%Low 4%Not rated 57%

Based on all 16,182 stocks with a score. Not rated are stocks that the profile does not classify because of a size limit or an exclusion rule.

Distribution of scores in the market
0
+1
+2
+3
+4
+5
+6
+7
+8
+9
Score distribution as a data table
ScoreNumber of stocksHigh matchMedium matchLow matchNot rated
098002474
+143700185252
+21,04900511538
+31,913088401,029
+42,72201,21901,503
+53,32001,48301,837
+63,15601,30001,856
+72,255904001,351
+81,02537500650
+92076900138
Countries of the high-match stocks
US 30%CN 25%TH 10%HK 5%SE 5%Other 25%
How rules turn into a score

How the scoring works

Every stock runs through the same disclosed rules. The points add up to a score, traceable down to the individual rule.

01
Rules

Each rule checks a metric against a threshold, here for example “Net income positive”.

02
Points & weighting

In this profile, each rule that is met counts +1 point. Exclusion rules take a stock out of the rating regardless of its points: it is then not rated.

03
Score & classification

The sum is the score. That gives three classes: high, medium, low match.

Low match
< 3 points
Medium match
3 – 6 points
High match
≥ 7 points

These terms describe only the match with the criteria, not a recommendation to buy or sell.

What the strategy measures a stock against

What is behind this strategy?

Profile of a stock with a high match
High match · Profitability: 100%High match · Valuation: 100%High match · Quality: 100%High match · Balance sheet & risk: 100%Market average · Profitability: 61%Market average · Valuation: 43%Market average · Quality: 47%Market average · Balance sheet & risk: 42%50%100%ProfitabilityValuationQualityBalance sheet& riskHigh matchMarket average
01
Does the company earn real money?

Net income and operating cash flow must be positive, with cash flow above profit.

02
Is the trend pointing up?

Return on assets, liquidity, gross margin and asset turnover are checked against the prior year.

03
Is debt coming down?

A falling leverage ratio signals a balance sheet getting stronger rather than more fragile.

04
Does my stake stay whole?

No new share issuance: dilution is often the first sign of capital distress.

Excerpt from the rule profile

These exact rules run over every stock daily.

4 of 10 rules
Group:AND
+0 ptsExclusion
Price-to-Book Ratioisgreater than0
Price-to-Book Ratioisat most1.5
All of these conditions must be met
Net Incomeisgreater than0+1 pts
Operating Cash Flowisgreater than0+1 pts
Return on Assetsisgreater thanROA (prior year)+1 pts
+ 6 more rules in the profile

After signing up for free, you can copy the full profile in the rule editor, adjust its thresholds, and save it as your own starting profile.

See and copy all rules for free
What the backtest shows, and what it does not

How has the profile performed?

Strategy: +140.3%Benchmark (MSCI World): +240.1%
81150220290359StartQ2 2017Q3 2018Q4 2019Q1 2021Q2 2022Q3 2023Q4 2024Q2 2026StrategyBenchmark (MSCI World)

Index, start = 100

The backtest shows a total return of +140.3%. The MSCI World reaches +240.1% over the same period.

+9.2%Return p.a.
+13.0%Benchmark p.a.
-28.7%Largest decline
0.57Sharpe Ratio
Spread by start date

The same strategy with the same settings, started at every possible date. Each dot is a separate run over 5 years.

0%5%10%15%20%Start Q2 2016: 6.7% p.a., MSCI World 13.5% p.a.Start Q3 2016: 2.1% p.a., MSCI World 13.2% p.a.Start Q4 2016: 5.6% p.a., MSCI World 13.8% p.a.Start Q1 2017: -0.2% p.a., MSCI World 11.8% p.a.Start Q2 2017: 6.1% p.a., MSCI World 9.9% p.a.Start Q3 2017: 9.6% p.a., MSCI World 9.4% p.a.Start Q4 2017: 9.2% p.a., MSCI World 8.7% p.a.Start Q1 2018: 6.8% p.a., MSCI World 11.0% p.a.Start Q2 2018: 7.4% p.a., MSCI World 10.6% p.a.Start Q3 2018: 7.9% p.a., MSCI World 9.5% p.a.Start Q4 2018: 4.8% p.a., MSCI World 13.8% p.a.Start Q1 2019: 3.9% p.a., MSCI World 13.2% p.a.Start Q2 2019: 4.5% p.a., MSCI World 13.3% p.a.Start Q3 2019: 5.0% p.a., MSCI World 12.8% p.a.Start Q4 2019: 7.4% p.a., MSCI World 13.0% p.a.Start Q1 2020: 19.8% p.a., MSCI World 16.8% p.a.Start Q2 2020: 16.5% p.a., MSCI World 13.7% p.a.Start Q3 2020: 19.6% p.a., MSCI World 14.6% p.a.Start Q4 2020: 16.2% p.a., MSCI World 13.4% p.a.Start Q1 2021: 16.0% p.a., MSCI World 10.8% p.a.Start Q2 2021: 12.9% p.a., MSCI World 12.5% p.a.Q2 2016Q4 2018Q2 2021
  • Strategy
  • MSCI World
  • Median 7.4%
Median
7.4%
Mean
8.9%
Range
-0.2% to 19.8%
Standard deviation
5.7 percentage points
Ahead of MSCI World
8 of 21 runs

The periods overlap heavily, neighbouring runs share almost all periods. The spread therefore looks smaller than it would for independent periods. Past results say nothing about future ones.

Strategy calculated without fees and taxes, dividends reinvested.

Point-in-time composition since June 30, 2009: each period uses the members at that time. Stocks that left the market early may be missing, which favours the result.

Historical period, quarterly rebalancing. Past performance is not a reliable indicator of future results.

Which stocks fit best today

Stocks with a High Match

Purely mechanical rule application, no curated-list effect: stocks with a high match can fall just like any other stock.

P/E, P/B, ROE and equity ratio are already visible publicly per stock. After signing up for free, you'll see additional metrics such as margin and debt, plus the live score history.
The way of working this profile suits

Who is this strategy for?

For safety-conscious fundamental investors, and as a quality filter before value investments: a low price is worthless if the substance is eroding. If you screen optically cheap stocks, this is where you see whether the balance sheet confirms the story.

Adopt this strategy for free
What people usually ask before starting

Frequently asked questions

Is this the Piotroski F-Score?
The check follows Joseph Piotroski's F-Score principle (2000): nine binary criteria, one point each, applied to the top book-to-market quintile (reconstructed here via a P/B exclusion rule). The buy threshold of 7 points is a practitioner convention, not a rule from the paper itself.
Why do missing values earn no point?
The system is deliberately conservative: a criterion only counts as met when the data proves it. Patchy data can therefore never produce an artificially high match.
Is this a recommendation to act?
No. StockScorer provides automated, rule-based assessments for information only. Nothing here replaces individual financial advice or constitutes a solicitation to buy or sell securities.
Can I swap out individual criteria?
Yes. After free registration you can copy the profile and adjust it in the rule editor: criteria can be removed, weighted or extended with your own thresholds.

Method & Criteria

The 9-point balance-sheet check assesses a company's financial condition with nine strictly binary criteria. Each one met earns exactly one point. The blueprint is the F-Score that Joseph Piotroski developed at the University of Chicago in 2000: he applied the score explicitly to the top book-to-market quintile only, meaning classic value stocks. StockScorer reconstructs that quintile through an exclusion rule on a P/B up to 1.5. Especially within this cheaply valued segment, the unweighted sum of weak individual signals reliably separates companies with real substance from those burning capital internally. The accrual check is particularly revealing: if operating cash flow exceeds net income, the profit is backed by real money, not by accounting effects.

How does the 9-point check work?

An exclusion rule first ensures that only value stocks are scored: a P/B up to 1.5 (an approximation of Piotroski's top book-to-market quintile; a stock without a P/B is not scoreable). Only then do the nine yes/no questions count, each worth exactly one point, deliberately unweighted. The empirical research behind the F-Score principle shows that it is precisely the unweighted accumulation of many weak signals that maximises predictive power for financial stability. Missing data conservatively earns no point.

Four criteria test profitability (positive profit, positive cash flow, rising return on assets, cash flow above profit), three the capital structure (long-term debt over total assets down versus the prior year, rising liquidity, no dilution), two operating efficiency (rising gross margin and asset turnover). The upper threshold is a uniform 7 points across all size classes, with priority given to small caps: Piotroski's Table 4 finds the effect statistically insignificant for large caps, so a stricter hurdle there is not warranted.

The nine criteria

Value gate (exclusion rule): P/B up to 1.5, an approximation of the original's top book-to-market quintile.

Profitability: (1) net income positive, (2) operating cash flow positive, (3) return on assets above prior year, (4) operating cash flow above net income (earnings quality).

Capital structure: (5) long-term debt over total assets below prior year, (6) current ratio above prior year, (7) share count not increased.

Efficiency: (8) gross margin above prior year, (9) asset turnover (revenue/total assets) above prior year.

Strengths, limits and deviations from the original

The check is a trend instrument: it measures improvement over the prior year, not absolute levels. A solid but stagnant company can therefore score lower than one improving rapidly; by design, because those improvers have historically delivered the excess returns in the cheap end of the market.

Fidelity update as of 23 August 2026: the leverage trend now follows the paper via long-term debt over total assets instead of the debt-to-equity ratio. The buy threshold of 7 points is a practitioner convention, not an original requirement: Piotroski's own paper contrasts the extremes of 8 to 9 points against 0 to 1, without naming a fixed "buy from 7" rule.

Who is this strategy for?

For anyone who wants to check balance-sheet quality systematically, standalone, or as a second filter next to a valuation strategy such as Two-Factor Value + Quality.