Stockopedia | Share Prices, Share News and Company Research

+ Create a Screen Read the Guide Watch the Video

Short Selling Screens

UK Data
5 strategies sorted by
Altman Z-Score Screen

This is a short-selling strategy based on the Altman Z-score which combines five weighted business ratios to estimate the likelihood of financial distress. The idea is that, if the Altman Z-Score is close to or below 3, it is wise to do some serious due diligence. The Z-score results usually have the following "Zones" of interpretation: any Z-Score above 2.99 is considered to be a safe company. Anything below 1.80 is in the distress zone, with a strong likelihood of the company going bankrupt within the next two years, while anything between 1.80 and 2.99 is in a "grey zone". In line with Altman's result, this work is based on last annual reported results and does not factor any interim updates. According to the research, the Altman score does experience false positives (i.e. classifying the firm as bankrupt when it does not go bankrupt) in approximately 15-20% of cases. more »

Short Selling
Annualised Return: -1.3%
James Montier Trinity of Risk Screen

This is a screen for short sellers (avoiding stocks on these lists is advisable). James Montier suggested this screen based on the writings of Benjamin Graham. Graham proposed three primary sources of risk to your investment in shares or any other asset - Valuation Risk, Earnings Risk and Financial Risk - each of which should be seriously considered when purchasing a new position. This screen looks for a Graham and Dodd PE of greater than 16x (valuation risk), it must have current EPS greater than twice the ten year average (business/earnings risk), and it must also have an Altman Z score of less than 1.8 (balance sheet/financial risk). more »

Short Selling
Annualised Return: -1.3%
Beneish M-Score Screen

This is a short-selling strategy based on Professor Beneish's M-Score - this is a mathematical model that uses eight financial ratios from the company's financial statements to assess the degree to which the earnings may have been manipulated. It is similar to the Altman Z-Score, but it is focused on detecting earnings manipulation rather than bankruptcy. The research suggests that a score less negative than -1.78 indicates a strong likelihood of a firm being a manipulator. Here is the link to the original Detection of Earnings Manipulation paper as well as the subsequent paper - The Relation between Accruals and Earnings Manipulation. The screen below highlights companies that have had a M-score above the threshold for two years in a row in order to reduce the likelihood that a given year's result is coincidental or a rogue data input error. more »

Short Selling
Annualised Return: -9.1%
James Montier 'Cooking the Books' Screen

James Montier (former Soc Gen global equity strategist) aimed to create a simple scoring system that would highlight companies that may be 'cooking the books'. The C-Score was the result. It measures six inputs including the divergence between net income and cash-flow, increasing days sales outstanding, increasing days sales of inventory, increasing current assets to revenues, declining depreciation relative to PPE and high total asset growth. Montier found that companies with high C-Scores under performed the market by 8% per annum, generating a mere 1.8% return between 1993 and 2007. He recommended using it in tandem with a high valuation measure. A C Score = 5 used in tandem with a Price/Sales Ratio > 2 generated a negative absolute return of 4% p.a. in the US. For a full review of the C Score please click here. more »

Short Selling
Annualised Return: -9.6%
James Montier 'Unholy Trinity' Screen

This is a three point short selling screen based on the approach outlined by James Montier in 2008 to identify potential candidates in weak markets.   1. High Valuation (Price to Sales Ratio > 4) - Calling the Price to Sales ratio 'insane' as a valuation measure due to its lack of focus on profitability,  Montier first screened for companies trading at a multiple of at least 4 times sales. 2. Weak Fundamentals  (F Score < 4) -  With the valuation side covered, he then qualified this list by screening for the financially weak companies having a Piotroski F Score of 3 or less.  3. Poor Capital Discipline (Asset Growth > 10%) -  But unsatisfied with only focusing on high valuation and weak fundamentals, Montier also showed that company executives were often wasteful capital allocators; research showing that companies with low asset growth rates highly outperform companies with high asset growth rates by 13% annually.  more »

Short Selling
Annualised Return: -13.7%
5 strategies sorted by