Invest Using The O’Shaughnessy Growth II Screening Model (2024)

Invest Using The O’Shaughnessy Growth II Screening Model (1)

This week, we present the strategy used by James O'Shaughnessy, influential investor and president of the investment advisory firm O'Shaughnessy Capital Management. Read on for how we identify stocks possessing the key characteristics O'Shaughnessy utilizes for this strategy and 25 current stock ideas from our Growth II screen. Our O'Shaughnessy Growth II screening model has shown impressive long-term performance, with an average annual gain since 1998 of 16.7%, versus 5.9% for the S&P 500 index over the same period.

The Universe

O'Shaughnessy establishes two base groups of stocks from which to pick investments and that serve as performance and risk benchmarks: all stocks, and those with a large market capitalization. The "all-stocks" universe is determined by selecting stocks with a market cap (shares outstanding times market price) of $150 million or greater. Rather than use all exchange-listed stocks, O'Shaughnessy focuses only on stocks that a professional money manager could buy without too much difficulty due to liquidity. In his book "What Works on Wall Street," O'Shaughnessy based the $150 million market cap cutoff as of December 31, 1994, and adjusted this figure for inflation so that the minimum value was approximately $26.7 million in 1952 for the purposes of backtesting. A revised edition extended its analysis through 1996; however, O'Shaughnessy chose to hold the market-cap range static during those two additional years. We decided to also hold the market-cap floor for the all-stocks universe to $150 million when constructing screens based on O'Shaughnessy's strategies.

Limiting the analysis to stocks with a market cap above $150 million cuts out 25% of the stocks currently traded on U.S. exchanges.

The large-cap universe is determined by selecting stocks with a market cap greater than the average for the overall universe. Typically, a lower percentage of companies pass this filter because very large firms push up the average market cap. Testing reveals that the large-cap group has similar return and risk performance to that of the S&P 500. The market-cap average was $1,597 million when AAII ran its first screen using this strategy on September 30, 1997. As of June 3, 2022, the average market cap of exchange-listed stocks had increased to $9,383 million.

Growth Strategies

Growth strategies try to find companies that will continue to produce above-average earnings growth. O'Shaughnessy tested a number of basic growth strategies including high rates of one- and five-year earnings growth, high profit margins, high returns on equity and high relative strength. Most of these simple growth strategies proved to be very risky. Although growth stocks go through spurts when they produce very high returns, especially during bull markets, they also go through very bearish periods. And over the long term, the returns do not adequately compensate for the high risk. The exceptions, however, were relative strength and persistent earnings growth.

Earnings growth: O'Shaughnessy found that purchasing firms with the largest increases in earnings growth, whether over one year or five years, is a losing proposition. Investors, he says, tend to pay too much for these stocks. On the other hand, stocks that show persistent earnings growth-yearly increases over a five-year period-appear to do well when combined with other screens.

Relative strength (one-year price changes): Stocks with the highest relative strength (the highest price changes over the prior year) produce the highest returns the following year. O'Shaughnessy found this screen to be one of the most effective filters for stocks of all sizes, although he warns that it is a very volatile approach that can severely test investor discipline. Why does a momentum indicator work? O'Shaughnessy speculates that the market is simply "putting its money where its mouth is." Conversely, O'Shaughnessy suggests that investors should avoid the biggest one-year losers, since most likely they will continue to lose.

Growth strategies show more consistent performance with smaller stocks, although O'Shaughnessy prefers not to exclude large firms from consideration. And although the magnitude of growth appears to be of little use in identifying high-returning stocks, persistent earnings growth and high relative strength both provide useful growth screens.

Implementing the Growth II Strategy

With the exception of relative price strength, the growth strategies tested by O'Shaughnessy were not very promising. O'Shaughnessy's single factor test screened for companies with extreme values-factors such as highest earnings growth, highest margins and highest returns on equity. By reducing these extreme growth requirements and establishing moderate value requirements, O'Shaughnessy was able to construct a portfolio that had the desired combination of strong price growth and reasonable risk.

However, the criteria making up his growth screen changed between the first and revised editions of "What Works on Wall Street" without any explanation of the shift. The original growth screen emphasized earnings consistency and relative strength, while the revised screen (Growth II) emphasizes relative strength.

O'Shaughnessy's growth stock screen is based upon the all-stocks universe because smaller stocks have greater growth potential than their large-cap counterparts. The all-stocks universe looks for stocks with a market cap above $150 million. This figure should be adjusted annually for inflation.

Originally, his growth strategy focused on earnings consistency, rather than relying on high earnings growth levels. A screen for five years of consecutive earnings growth was specified and proved to be very restrictive. The revised edition requires that current annual earnings only be higher than the previous year. The revised growth screen looks for a positive change in earnings per share for the latest four quarters compared to the previous four quarters. About half of the stocks pass this criterion, compared to less than 10% of all stocks for the earnings consistency screen.

O'Shaughnessy balances the growth requirement by establishing a maximum price-to-sales (P/S) ratio ceiling of 1.5. The price-to-sales ratio is the current price divided by the sales per share for the most recent 12 months. It is a measure of stock valuation relative to sales. A high ratio might imply an overvalued situation; a low ratio might indicate an undervalued stock. When used independently as a value screen, more restrictive ceilings of 0.75 or 1.0 are common. The price-to-sales ratio is loosened for the growth screen to allow more growth-oriented companies to pass yet filter those companies with extreme valuations.

O'Shaughnessy then screens for the 50 companies with the highest relative price strength over the last year. Relative price strength is a price momentum indicator; it confirms investor expectations and interest by comparing the performance of a stock relative to the market.

25 Stocks Passing the O'Shaughnessy Growth Screen II


The stocks meeting the criteria of the approach do not represent a "recommended" or "buy" list. It is important to perform due diligence.

This article was written by

Charles Rotblut, CFA is the editor of the AAII Journal, the flagship publication of The American Association of Individual Investors (AAII). Charles provides both insight about individual investor sentiment and market analysis. He is also the author of "Better Good than Lucky: How Savvy Investors Create Fortune with the Risk-Reward Ratio" (W&A Publishing/Trader's Press).

Analyst’s Disclosure: I/we have no stock, option or similar derivative position in any of the companies mentioned, and no plans to initiate any such positions within the next 72 hours. I wrote this article myself, and it expresses my own opinions. I am not receiving compensation for it. I have no business relationship with any company whose stock is mentioned in this article.

Seeking Alpha's Disclosure: Past performance is no guarantee of future results. No recommendation or advice is being given as to whether any investment is suitable for a particular investor. Any views or opinions expressed above may not reflect those of Seeking Alpha as a whole. Seeking Alpha is not a licensed securities dealer, broker or US investment adviser or investment bank. Our analysts are third party authors that include both professional investors and individual investors who may not be licensed or certified by any institute or regulatory body.

I'm an experienced financial analyst with a deep understanding of investment strategies and market dynamics. My expertise in this field is demonstrated by my extensive knowledge of various investment models and the ability to analyze and interpret financial data effectively.

Now, let's delve into the concepts mentioned in the article about James O'Shaughnessy's investment strategy. O'Shaughnessy, an influential investor and president of O'Shaughnessy Capital Management, employs a Growth II screening model that has shown impressive long-term performance. Here are key concepts from the article:

  1. Universe Definition:

    • O'Shaughnessy establishes two base groups of stocks for performance and risk benchmarks: all stocks and those with large market capitalization.
    • The "all-stocks" universe includes stocks with a market cap of $150 million or greater.
    • Liquidity is a key consideration, focusing on stocks that professional money managers could buy without difficulty.
  2. Market Cap Criteria:

    • O'Shaughnessy uses a $150 million market cap cutoff based on data as of December 31, 1994, adjusted for inflation.
    • The large-cap universe comprises stocks with a market cap greater than the average for the overall universe.
  3. Growth Strategies:

    • O'Shaughnessy explores various growth strategies, including high rates of one- and five-year earnings growth, profit margins, returns on equity, and relative strength.
    • Persistence in earnings growth and relative strength (one-year price changes) are identified as effective filters for stocks.
  4. Relative Strength:

    • Stocks with the highest relative strength (one-year price changes) tend to produce the highest returns in the following year.
    • O'Shaughnessy suggests that this approach can be volatile but effective, as it reflects market sentiment.
  5. Implementation of Growth II Strategy:

    • O'Shaughnessy adjusts growth requirements, balancing strong price growth with reasonable risk.
    • The Growth II strategy focuses on the all-stocks universe, looking for stocks with a market cap above $150 million.
    • Criteria include a positive change in earnings per share over the latest four quarters and a maximum price-to-sales ratio ceiling of 1.5.
  6. Stock Selection:

    • O'Shaughnessy screens for the 50 companies with the highest relative price strength over the last year.
  7. Cautionary Note:

    • The article emphasizes that stocks meeting the criteria do not represent a "recommended" or "buy" list, highlighting the importance of performing due diligence.

This information provides insights into O'Shaughnessy's approach to identifying stocks with growth potential while managing risk within specified criteria. It's crucial for investors to conduct thorough research and due diligence before making investment decisions.

Invest Using The O’Shaughnessy Growth II Screening Model (2024)
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