March 4, 2021
Everyone knows the value strategy has been a grave disappointment out-of-sample since, say, 1990, based on realized returns. However, odd as it might sound, the realized average return on a strategy is not necessarily the best estimate of its true long-term expected return. In fact, the right estimate of the true long-term expected return of the value strategy is considerably higher than many might think if they were to just look at simple past returns – especially right now. Why? I explain it in this note (spoiler: it has to do with changes in valuation).
Read moreJune 7, 2019
Can Machines “Learn” Finance?” was named the winner of the 2020 Harry M. Markowitz Award. Machine learning for asset management faces a unique set of challenges that differ markedly from other domains where machine learning has excelled. We discuss a variety of beneficial use cases and potential pitfalls for machine learning in asset management, and emphasize the importance of economic theory and human expertise for achieving success through financial machine learning.
Read moreMarch 1, 2021
This paper studies how echo-chamber effects and fake news can lead to disagreement and misinformation with effects on investors’ portfolios and market prices. It presents a model how an investment idea can propagate through a social network, generating a trading frenzy with high turnover, a bubble in the price, and high price volatility. The paper also presents empirical evidence on the dramatic events related to the GameStop stock in January 2021 and discusses broader economic implications.
Read moreOur Approach
Cliff's Perspectives
March 4, 2021
Everyone knows the value strategy has been a grave disappointment out-of-sample since, say, 1990, based on realized returns. However, odd as it might sound, the realized average return on a strategy is not necessarily the best estimate of its true long-term expected return. In fact, the right estimate of the true long-term expected return of the value strategy is considerably higher than many might think if they were to just look at simple past returns – especially right now. Why? I explain it in this note (spoiler: it has to do with changes in valuation).
Read moreOur History
Strategies
AQR is at the nexus of economics, behavioral finance, data, and technology. Our evolution has been a continuous exploration of what drives markets and how it can be applied to client portfolios.
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