Data Set
May 29, 2026
We have updated and extended our data set for “Time Series Momentum" (Moskowitz, Ooi and Pedersen, 2012), in which we document an asset-pricing anomaly that is consistent across different asset classes and markets. We update the returns monthly.
Perspective
April 8, 2026
As the correlation between stocks and bonds has turned positive, many investors have questioned whether bonds still provide meaningful diversification and have looked to alternative "replacements." This perspective argues that most popular substitutes add more equity risk, not less, and shows that true diversification still requires strategies with genuinely low or negative equity beta—not simply abandoning bonds.
Journal Article
March 31, 2026
In an interview with the editor of The Journal of Private Markets Investing, Cliff Asness reiterates his views on the numerous flaws embedded in private assets, and what investors should keep in mind when assessing the role of privates in their own portfolios.
Perspective
March 25, 2026
I push back on claims that I predicted recent turmoil in private markets, clarifying that my prior work focused on long‑term issues like volatility mismeasurement, illiquidity, and expected returns—not short‑term market calls. While privates play a real economic role, I argue investors shouldn’t confuse smoothed valuations and perceived stability with lower risk or superior long‑run performance.
Journal Article
February 28, 2026
In a comprehensive interview, AQR Principal Jordan Brooks outlines his thoughts on building multi-asset portfolios – including investing across a range of assets, incorporating low-correlation strategies, designing portfolios to be resilient, and more.
Alternative Thinking
January 14, 2026
We update our estimates of medium-term (5- to 10-year) expected returns for major asset classes. We also include a discussion on currency risk and currency hedging, with particular considerations for U.S. and European investors.
White Paper
November 3, 2025
Part 10: This paper examines how investor biases and performance-chasing behaviors can undermine the benefits of long/short diversifying alternatives. We explore why such strategies often feel disappointing in bull markets, yet remain vital for long-term portfolio resilience.
Journal Article
August 31, 2025
Equity investing is hard: volatility can be high, returns are unpredictable, and drawdowns can be painful. “Defined outcome” strategies such as buffer funds are the latest in a decades-long lineage of products promising equity-like returns with less downside risk. Like their predecessors, a closer look at these strategies reveals they fall short both empirically and theoretically.
Perspective
August 11, 2025
Our latest piece on Buffer Funds appears in the current issue of the Journal of Portfolio Management. Once again, and with more analysis (and co-authors) than our two previous posts on the topic, we find these products don’t hold up to scrutiny, either empirically or theoretically. Buffer funds by and large have sold investors the promise of comfort, cloaked in complexity, at the cost of risk-adjusted returns. Our paper shows there are simpler, less expensive, and more effective ways to deal with the risk of equity markets.
White Paper
July 31, 2025
In a portfolio whose investment horizon is forever, do diversifying investments add any value? In this short paper, we illustrate the surprising power of diversification for ultra-long-term investors.
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