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Well-constructed alternative risk premia (ARP), or style premia, strategies have delivered positive, uncorrelated returns at modest fees over the long run. After gaining popularity in the 2010s for their academic grounding, diversification properties, transparency, and low fees, the category faced a challenging period during the "Quant Winter" of 2018–2020. While some investors lost faith in the concept, many strategies subsequently experienced a strong recovery, and we continue to believe style premia can make a valuable contribution to investor portfolios.
In this paper, we revisit the concept and benefits of style premia investing through the lens of "academic alpha"—sources of return grounded in well-established academic research. We discuss why identifying robust and implementable factors within the so-called "factor zoo" requires substantial manager skill, and how practitioners can improve and expand upon academic ideas through better signal measurement, broader asset-class applications, portfolio construction and risk management.
We also explore how continued innovation—including new signals and techniques, expanded investment universes, and advances in portfolio implementation—is making the boundary between academic and proprietary quantitative strategies increasingly blurred. More sophisticated academic alpha strategies may offer investors a powerful diversifier with liquidity, transparency and a source of uncorrelated returns.
This document is not intended to, and does not relate specifically to any investment strategy or product that AQR offers. It is being provided merely to provide a framework to assist in the implementation of an investor’s own analysis and an investor’s own view on the topic discussed herein.
Publisher disclaimer
This document has been provided to you solely for information purposes and does not constitute an offer or solicitation of an offer or any advice or recommendation to purchase any securities or other financial instruments and may not be construed as such. The factual information set forth herein has been obtained or derived from sources believed by the author and AQR Capital Management, LLC (“AQR”) to be reliable but it is not necessarily all-inclusive and is not guaranteed as to its accuracy and is not to be regarded as a representation or warranty, express or implied, as to the information’s accuracy or completeness, nor should the attached information serve as the basis of any investment decision. This document is not to be reproduced or redistributed to any other person. The information set forth herein has been provided to you as secondary information and should not be the primary source for any investment or allocation decision. Past performance is not a guarantee of future performance. Diversification does not eliminate the risk of experiencing investment losses. This material is not research and should not be treated as research. This paper does not represent valuation judgments with respect to any financial instrument, issuer, security or sector that may be described or referenced herein and does not represent a formal or official view of AQR. The views expressed reflect the current views as of the date hereof and neither the author nor AQR undertakes to advise you of any changes in the views expressed herein. The information contained herein is only as current as of the date indicated, and may be superseded by subsequent market events or for other reasons. Charts and graphs provided herein are for illustrative purposes only. The information in this presentation has been developed internally and/or obtained from sources believed to be reliable; however, neither AQR nor the author guarantees the accuracy, adequacy or completeness of such information. Nothing contained herein constitutes investment, legal, tax or other advice nor is it to be relied on in making an investment or other decision. There can be no assurance that an investment strategy will be successful. Historic market trends are not reliable indicators of actual future market behavior or future performance of any particular investment which may differ materially, and should not be relied upon as such. Diversification does not eliminate the risk of experiencing investment losses. The information in this paper may contain projections or other forward-looking statements regarding future events, targets, forecasts or expectations regarding the strategies described herein, and is only current as of the date indicated. There is no assurance that such events or targets will be achieved, and may be significantly different from that shown here. The information in this document, including statements concerning financial market trends, is based on current market conditions, which will fluctuate and may be superseded by subsequent market events or for other reasons.
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Key arguments
- Well-constructed alternative risk premia strategies have delivered positive, uncorrelated returns at modest fees over the long run.
- Identifying robust and implementable factors within the 'factor zoo' requires substantial manager skill.
- Practitioners can improve upon academic ideas through better signal measurement, broader asset-class applications, portfolio construction and risk management.
- Continued innovation is blurring the boundary between academic and proprietary quantitative strategies.
- Sophisticated academic alpha strategies may offer investors a powerful diversifier with liquidity, transparency and uncorrelated returns.
Risks
- The 'Quant Winter' of 2018-2020 challenged the category, causing some investors to lose faith.
- Factor zoo complexity may lead to false discoveries if not properly managed.
- Style premia strategies may underperform in certain market conditions.