GurusTheir tests. Today's market.
Graham and others wrote their tests down.
Counted 11 Sep 2026. Prices of 10 Sep 2026.
Market count
Safe zone> 2.99A quarter to a half of the 2,861 US-listed companies with a Z-score fall in it.
A bankruptcy score from 1968: five ratios, weighted and summed, fitted on manufacturers that went bankrupt or did not.
- Five ratios, each scaled by assets or liabilities, weighted and added into one score.
- Zones commonly quoted: below 1.81 distress, above 2.99 safe, grey between.
- Fitted on publicly traded manufacturers, not on banks, utilities or service firms.
Source: Journal of Finance, 1968.
Open the page ›Messod Beneish
Flag zone> -1.78A tenth to a quarter of the 3,030 US-listed companies with an M-score fall in it.
A score built from eight measures on two years of accounts, estimated to flag likely earnings manipulators.
- Eight measures: receivables, margin, asset quality, sales growth, depreciation, overheads, debt, accruals.
- Commonly quoted cut-off: a score above minus 1.78 flags a likely manipulator.
- Fast, honest growth can raise the score too.
Source: Financial Analysts Journal, 1999.
Current ratio≥ 2A quarter to a half of the 3,645 US-listed companies with a current ratio meet it.
Seven tests for a defensive investor: size, balance sheet, earnings, dividends, growth and two on price.
- A current ratio of at least 2, and long-term debt within net current assets.
- Some earnings in each of ten years, and twenty years of dividends.
- A price at most 15 times three-year earnings, and 1.5 times book.
Source: The Intelligent Investor, 1973, ch. 14.
Open the page ›High score≥ 8Fewer than a twentieth of the 3,630 US-listed companies with an F-score fall in it.
A nine-test score, built from a company's own filings, for sorting cheap stocks into stronger and weaker ones.
- Nine yes-or-no tests: profit, cash, debt, liquidity, new shares, margin, turnover.
- He called a score of 8 or 9 high, and 0 or 1 low.
- He tested it only inside the fifth of stocks cheapest against book value.
Source: Journal of Accounting Research, 2000.
Open the page ›Tweedy, Browne
Price to book≤ 1A tenth to a quarter of the 3,385 US-listed companies with a price to book ratio meet it.
A booklet collecting over fifty studies of cheap, small and fallen stocks, and the five traits the firm looked for.
- Five traits: cheap on assets, cheap on earnings, insider purchases, a fallen price, small size.
- Only the first sets the firm's own level: below book or net current assets.
- About half the studies it collected were outside the United States.
Source: What Has Worked in Investing, 1992, revised 2009.
No market count
Warren Buffett
Returns and debt, in words.
Shareholder letters that judged a business by owner earnings, returns on capital and little debt, in words.
- Owner earnings: profit after the spending needed just to hold its ground.
- A high return on equity, earned without undue debt or accounting tricks.
- A fine business can still cost too much, as the letters warn.
Source: Berkshire Hathaway shareholder letters, 1979 to 2014.
David Dreman
Ranks the cheap end.
Four contrarian strategies, each ranking large companies by one price ratio and taking the cheapest end.
- Four separate sorts: price against earnings, book value, cash flow and dividends.
- A rank takes the cheapest end, however high or low the market is.
- The cheapest end is where the market is least enthusiastic.
Source: Contrarian Investment Strategies: The Next Generation, 1998.
Philip Fisher
Fifteen points, in words.
Fifteen questions about a business and its people, answered mostly by asking around, not by reading accounts.
- Margins counted against the same industry, read over a series of years.
- A company could miss a few points, but never integrity.
- He allowed three reasons for a sale; a high share price was not one.
Source: Common Stocks and Uncommon Profits, 1958.
Ranks companies, no pass mark.
Two factors, earnings yield and return on capital, each used to rank the market rather than to filter it.
- Earnings yield: operating profit against enterprise value.
- Return on capital: operating profit over net working capital and net fixed assets.
- Financial companies and utilities left out, above a size floor.
Source: The Little Book That Beats the Market, 2005.
Open the page ›Bruce Greenwald
Earnings power, not computed.
Value in three tiers: assets at reproduction cost, earnings power with no growth, and growth last.
- For a business worth entering, assets at what rebuilding them would cost.
- Earnings power: sustainable earnings over the cost of capital, no growth.
- Growth without a barrier to entry adds no value, they argued.
Source: Value Investing: From Graham to Buffett and Beyond, 2001.
Seth Klarman
Margin of safety, in words.
Klarman held that safety lies in the price paid, well below a conservative estimate of value.
- Three valuation methods: future cash, liquidation, and market comparisons.
- When the methods disagreed, he leaned to the lower value.
- Risk came from the price paid, not from price swings.
Source: Margin of Safety, 1991, ch. 8.
Peter Lynch
P/E against growth.
One Up on Wall Street: price weighed against earnings growth, a balance sheet benchmark, and checklists by type.
- Six types of company, each judged by the tests that suit it.
- Fair price, in his rule: a P/E equal to the earnings growth rate.
- A normal balance sheet, in his book: three quarters equity, a quarter debt.
Source: One Up on Wall Street, 1989.
Howard Marks
Cycles and risk, in words.
Marks asked what the price already assumes, and where the market stands in its cycle.
- The question was what the price assumes, not only whether the business is good.
- Risk meant permanent loss, which no price series measures.
- The useful question was where the cycle stands, not what comes next.
Source: The Most Important Thing, 2011; Mastering the Market Cycle, 2018.
Charlie Munger
Quality at a fair price.
Munger preferred a good business at a fair price to a mediocre one at a bargain price.
- Over decades, returns follow the business's return on capital, he argued.
- Little debt, kept so credit held in any conditions.
- Management and understanding mattered, and neither shows up in a filing.
Source: Berkshire Hathaway 2014 annual report; a 1994 talk at USC.
John Neff
P/E below the market's.
A low P/E against the market, with earnings growth and a dividend weighed together against the price.
- A P/E judged against the market's, not against a fixed number.
- Growth plus yield, over the P/E: the return weighed against the price.
- Very fast growth read as a warning, not a reason to pay more.
Source: John Neff on Investing, 1999.
Robert Novy-Marx
A sort into fifths.
Gross profits over total assets as the measure of profitability, and his evidence that it complemented value.
- Gross profit, before overheads and financing, divided by total assets.
- Sorted into fifths each June on NYSE breakpoints; no level was published.
- In his sample, profitable firms looked expensive, so profitability complemented value.
Source: Journal of Financial Economics, 2013.
James O'Shaughnessy
Two fund screens.
Wrote What Works on Wall Street; his funds' SEC prospectus spelled out two screens condition by condition.
- Price to sales below 1.5: market value over the latest twelve months of sales.
- Fixed rules, fifty stocks, equal weights, rebalanced once a year.
- The final step was a rank, on price gain or on yield.
Source: O'Shaughnessy Funds prospectus, October 1996.
Walter Schloss
Book value, wary of debt.
A short list of factors that uses book value as a starting point and warns against borrowing.
- Book value as the starting point for what a company is worth.
- His reason: assets usually change slowly, and earnings can change fast.
- A standing warning to be careful of borrowing.
Source: Factors needed to make money in the stock market.
Terry Smith
Cash returns, in words.
An owner's manual that sets out in words what the fund seeks: high returns in cash, no need to borrow.
- Quality: a high return on capital, sustained, and counted in cash.
- Earnings per share set aside, because they ignore the capital employed.
- Price judged by free cash flow yield against bond yields.
Source: Fundsmith Equity Fund Owner's Manual, 2025 edition.
John Templeton
Sixteen rules, many markets.
Templeton's sixteen rules called for bargains among quality companies, judged on value, not market trends or the outlook.
- He looked for low prices where most investors were pessimistic.
- Each company was judged on its own value, not on market trends.
- His rules called for diversification: safety in numbers.
Source: 16 Rules for Investment Success.
Research tool, not investment advice.
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