Sometimes the best investing strategies don't come from the world of investing. Sometimes research that changes the investing world can come from the halls of academia. Partha Mohanram is a great example of this. While academic research has shown that value investing works over time, it has found the opposite for growth investing. Mohanram turned that research on its head by developing a growth model that produced significant market outperformance. His research paper "Separating Winners from Losers among Low Book-to-Market Stocks using Financial Statement Analysis" looked at the criteria that can be used to separate growth stocks that continue their upward trajectory from those that don't. Mohanram is currently the John H. Watson Chair in Value Investing at the University of Toronto and was previously an Associate Professor at the Columbia Business School.
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Since 2006, this portfolio has returned 681.6%, outperforming the market by 516.6% using its optimal tax efficient rebalancing period and 10 stock portfolio size.
Validea used the investment strategy outlined in the paper Separating Winners from Losers among Low Book-to-Market Stocks using Financial Statement Analysis written by Partha Mohanram to create our P/B Growth Investor portfolio.
Mohanram's strategy starts with the lowest twenty percent of stocks using the book/market ratio (the inverse of the price/book ratio). Growth firms, on average, do not beat the market over time, but Mohanram identified eight criteria that can be used to separate the winners from the losers. His criteria are split into three distinct groups. His model looks at profitability using criteria like return on assets and cash flow from operations, consistency using the variance of return on assets and sales, and a willingness to invest for the future using capital expenditures, advertising and research and development. He found that, when combined together, these criteria helped to identify growth firms that are likely to sustain that growth.
Partha Mohanram Strategy Description Video
Performance Disclaimer: Returns presented on Validea.com are model returns and do not represent actual trading. As a result, they do not incorporate any commissions or other trading costs or fees. Model portfolios with inception dates on or after 12/30/2005 include a combination of back tested and live model returns. The back-tested performance results shown are hypothetical and are not the result of real-time management of actual accounts. The back-testing of performance differs from actual account performance because the investment strategy may be adjusted at any time, for any reason and can continue to be changed until desired or better performance results are achieved. Back-tested returns are presented to provide general information regarding how the underlying strategy behind the portfolio performed in our historical testing. A back-tested strategy has the benefit of hindsight and the results do not reflect the impact that material economic or market factors may have had on advisor's decision-making if actual client assets were being managed using this approach.
Optimal portfolios presented on Validea.com represent the rebalancing period that has led to the best historical performance for each of our equity models. Each optimal portfolio was determined after the fact with performance information that was not available at portfolio inception. As a result, an investor could not have invested in the
optimal portfolio since its inception. Optimal portfolios are presented to allow investors to quickly determine the portfolio size and rebalancing period that has performed best for each of our models in our historical testing.
Both the model portfolio and benchmark returns presented for all equity portfolios on Validea.com are not inclusive of dividends. Returns for our ETF portfolios and trend following system, and the benchmarks they are compared to, are inclusive of dividends. The S&P 500 is presented as a benchmark because it is the most widely followed benchmark of the overall US market and is most often used by investors for return comparison purposes. As with any investment strategy, there is potential for profit as well as the possibility of loss and investors may incur a loss despite a past history of gains. Past performance does not guarantee future results. Results will vary with economic and market conditions.