The Small-Cap Investing Handbook Part Three: Size Matters

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Jacob Wolinsky
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Updated on

This is part three of a ten-part series on small-cap investing and the small-cap premium.

Throughout this series, I’m looking at both the benefits, and drawbacks of investing in small caps, considering all of the evidence available to us today for both sides of the debate.

When completed we are planning to turn the series into an e-book, which we hope will be a comprehensive guide to investing in small caps.

The series is a collaboration between ValueWalk and ValueWalk’s new small-cap investing magazine Hidden Value Stocks.

  1.  Handbook Part One: Introduction
  2.  Handbook Part Two: The Premium

Hidden Value Stocks is a quarterly publication which profiles two top-notch small-cap focused hedge funds in each issue. Within each issue, the managers discuss their investing process as well as to small-cap ideas each. To find out more, head over to


small-cap premium The Small-Cap Investing Handbook Part Three: Size Matters – small-cap premium

As covered in parts one and two of this series, there has been some debate as to whether or not the small-cap premium (whereby small-cap stocks outperform their larger peers) still exists. Some studies appear to show that this effect has disappeared but a paper entitled “Size Matters If You Watch Your Junk” by Cliff Asness, Andrea Frazzini, Ronen Israel, Tobias Moskowitz, And Lasse H. Pedersen published in 2015 confirms that the small-cap premium does still exist for high-quality companies.


Small caps are known to be high-risk investments, which is why no one expects every single small-cap to outperform. With this being the case, a study looking at the performance of high-quality small caps may be the best way of trying to understand whether or not the small-cap premium does still exist.

The authors of the paper separate the good companies from the “junk” by using several simple measures of “quality” which they described in an earlier paper. These measures are:

“Profitability (margins, free cash flow, profits per unit of book value, etc)

The 5-year growth rate in profits (again using a broad range of measures of earnings)

“Safety”, which is based on both the volatility of the stock, the volatility of the underlying profits, and the amount of leverage

How much profit is returned to shareholders rather than retained or spent, with higher payout ratios signifying higher “quality”

Separating small caps according to these factors produces some astonishing results. The authors found that around one-third of the smallest companies in the sample fall in the bottom of the rankings when it comes to things like profitability, sales growth, and earnings volatility. Overall, the typical small-cap company has far worse fundamentals than the average company in the broader stock market universe with a less than 10% of the small caps considered between 2010 and 2012 actually meeting high-quality standards. As the chart below shows, most of the firms with the worst fundamentals are small.


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Jacob Wolinsky is the founder of HedgeFundAlpha (formerly ValueWalk Premium), a popular value investing and hedge fund focused intelligence service. Prior to founding the company, Jacob worked as an equity analyst focused on small caps. Jacob lives with his wife and five kids in Passaic NJ. - Email: jacob(at) FD: I do not purchase any equities to avoid conflict of interest and any insider information. I only purchase broad-based ETFs and mutual funds.

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