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Journal Article
Fact, Fiction, and Factor Investing: Practical Applications
September 1, 2023
This piece distills the central concepts and practical takeaways of our Fact, Fiction, and Factor Investing article, which examined many claims about factor investing, referencing an extensive academic literature and performing simple, yet powerful, analysis to address those claims.
Working Paper
Financial Machine Learning
August 1, 2023
In this survey the nascent literature on machine learning in financial markets, we highlight the best examples of what this line of research has to offer and recommend promising directions for future research.
Perspective
Volatility Laundering
January 6, 2023
While not alone, I have become one of the chief gadflies of the private equity industry. But I’m a selective gadfly. The illiquidity and non-marking that comes with private investments used to be acknowledged as a bug. These days, however, this same bug is sold as a feature – and sometimes, as in a recent Institutional Investor op-ed, brazenly so. My response in II covers what I think are the increasingly harmful ramifications of taking as reality the unrealistically smoothed returns that private strategies are all-too-happy to report.
Alternative Thinking
Should Your Portfolio Protection Work Fast or Slow?
Q4 2022
2022’s drawdown provides a clear picture for the types of strategies that can actually deliver in a “slow burn” market downturn. While some options-based strategies have generated positive returns, in many cases they have disappointed. In contrast, trend following strategies have generally posted very strong returns. Looking ahead, many of the macro conditions that have been advantageous to trend following are still in place—and have historically tended to persist.
Journal Article
Fact, Fiction, and Factor Investing
December 22, 2022
Factor investing has been around for several decades, backed by an enormous body of literature, and yet it is still surrounded by much confusion and debate. We examine many of the claims about factor investing, referencing the academic literature and performing simple, yet powerful, analysis to address them.
Quick Takes
Quick Clips: New Rules of Diversification
September 9, 2022
Hear from AQR's Portfolio Solutions Group on the the prospects for stock and bond markets, the impact of macroeconomic risks on a range of investments, and the use of diversifying investments to fortify portfolios.
Alternative Thinking
New Rules of Diversification
Q3 2022
During the first half of 2022, equity markets tumbled around 20% from their peak, with losses on typical stock/ bond portfolios almost as large. More worryingly, this type of downturn may be unfamiliar to many younger investors: with inflation still high, there is little prospect of central banks riding to the market’s rescue. We assess the prospects for stock and bond markets after the H1 selloff, consider the impact of macroeconomic risks on a range of investments, and explore the use of diversifying investments to fortify portfolios.
Journal Article
ESG Ratings: A Compass without Direction
August 2, 2022
We examine the recent concerns about the reliability of the assessments of ESG ratings providers. We review the demand for ESG information, the stated objectives of ESG ratings providers, how ratings are determined, the evidence of what they achieve, and structural aspects of the industry that potentially influence ratings. We find that while ESG ratings providers may convey important insights into the nonfinancial impact of companies, significant shortcomings exist in their objectives, methodologies, and incentives which detract from the informativeness of their assessments.
Quick Takes
Quick Clips: The Stock/Bond Correlation
Q2 2022
For the past two decades, the stock/bond correlation (SBC) has been consistently negative, and investors have been able to rely on their bond investments for portfolio protection when equities sell off. However, macroeconomic changes – like heightened inflation risk – could push this key asset allocation input into positive territory.
Journal Article
A Changing Stock-Bond Correlation
Q1 2023
For the past two decades, the stock/bond correlation – a fundamental detriment of risk in traditional portfolios – has been consistently negative. However, this hasn’t always been the case, and a positive stock/bond correlation could reappear due to macroeconomic changes. In this article, we assess the broad implications this would have for investors and set out practical steps to prepare for such an outcome.