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There have been recent incidents of individuals and groups falsely claiming to be associated with AQR on social media platforms. These imposters have engaged in a variety of unauthorized conduct, including soliciting customers to carry out trading activities with them, impersonating AQR using the genuine names of AQR senior executives or employees to offer investment opportunities, claiming to offer investment training courses that are supposedly provided by AQR or claiming that AQR is backing certain initial coin offerings or is otherwise engaged in crypto related trading activity. There have also been fake websites and mobile applications that claim to be AQR (or associated with AQR) when in fact they are not. These are scams and not authorized by AQR in any way.

Please be aware that AQR does not engage in any investment activities, provide training or financial services, or conduct other regulated activities through social media platforms or messaging apps. Similarly, AQR, its executives and employees do not contact prospects, clients or members of the public via social media platforms or messaging apps such as WhatsApp, Discord and Telegram to offer investment opportunities. AQR does not offer direct investments in cryptocurrencies or other digital assets, it does not provide a trading platform to members of the public, it does not have a mobile app, and it does not offer investment training courses to the public.

AQR and its partners, employees, directors, officers, advisors, successors, and agents are not responsible for any conduct by unauthorized parties and channels, nor are they responsible for the services or information provided by such unauthorized parties and channels. If you have any questions or wish to ascertain whether you are communicating with an authorized representative of AQR, please contact us at https://www.aqr.com/Contact-Us. If you believe that you or someone you know has been a victim of fraud, please report the matter to your local law enforcement or other relevant authorities. For India residents, you may lodge a report at the national cybercrime reporting portal (https://cybercrime.gov.in).

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White Paper

Active Extension

November 24, 2025 - Jeffrey Cao Peter Hecht Dave Kershner Bill Latimer Peihan Zhao

This paper explores how Active Extension (AE)—a long-short framework—may enhance portfolio performance. By allowing skilled managers to short unattractive stocks and overweight more attractive ones, AE offers a liquid, capital-efficient path to improved active returns and long-term wealth outcomes.

Journal Article

Rebuffed: An Empirical Review of Buffer Funds

August 11, 2025 - Cliff Asness Jeffrey Cao Antti Ilmanen Daniel Villalon

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.

White Paper

Portable Alpha: Why Now?

February 20, 2025 - Peter Hecht Jeffrey Cao

As stock market valuations continue to rise and expected returns correspondingly fall, many investors are hoping to rely more on alpha from active management to make up for a potential future return gap. Unfortunately, long-only active management has struggled during recent history. We review why portable alpha may be an attractive alternative solution in today’s market environment. We also discuss what aspects of a portable alpha solution are important for investors to consider when selecting between implementations.