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Holding Our Breadth
February 6, 2023
Regular readers probably noticed I’ve been talking a lot about value lately. While I’m all for shining the spotlight onto the value dislocation, my colleagues also continue to produce a great breadth of research worth adding to your non-value-reading-list. I preview some of my recent favorites.
Quick Takes
Quick Clips: 2023 Capital Market Assumptions for Major Asset Classes
January 27, 2023
Hear from Pete Hecht and Thomas Maloney as they provide short soundbytes based on our Q1 2023 Capital Market Assumptions for Major Asset Classes
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.
Working Paper
Machine Learning and the Implementable Efficient Frontier
August 18, 2022
We propose that investment strategies should be evaluated based on their net-of-trading-cost return for each level of risk, which we term the "implementable efficient frontier." While numerous studies use machine learning return forecasts to generate portfolios, their agnosticism toward trading costs leads to excessive reliance on fleeting small-scale characteristics, resulting in poor net returns. We develop a framework that produces a superior frontier by integrating trading-cost-aware portfolio optimization with machine learning
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.
Working Paper
Climate Finance
October 29, 2020
The paper reviews the literature studying interactions between climate change and financial markets, including various approaches to incorporating climate risk in macro-finance models as well as the empirical literature that explores the pricing of climate risks across several asset classes.
Journal Article
Tail Risk Hedging: Contrasting Put and Trend Strategies
July 8, 2020
The sharp market fall and speedy recovery during the eventful first half of 2020 has kept tail risk hedging topical: investors have both fresh memories of a painful loss and renewed fears of a repeat. We try to offer a balanced overview of the strengths and weaknesses of direct and indirect tail hedging strategies.
Journal Article
Portfolio Protection? It’s a Long (Term) Story…
April 23, 2020
Investors have a natural urge to protect their portfolios from sudden crashes, even though bad outcomes that unfold over longer periods are more detrimental to reaching long-term goals. We show risk-mitigating and diversifying strategies have added value more consistently than options-based hedging over the more important, longer drawdowns.
Journal Article
Enhanced Portfolio Optimization
March 2, 2020
We show how to identify the portfolios that cause problems in standard mean-variance optimization (MVO) and develop an enhanced portfolio optimization (EPO) method that addresses the problems. Applying EPO on several realistic datasets, we find significant gains relative to standard benchmarks.
Journal Article
Tax-Efficient Portfolio Transition: A Tax-Aware Relaxed-Constraint Approach to Switching Equity Managers
March 2, 2020
For a taxable investor with a highly appreciated equity portfolio, replacing the portfolio manager is likely to trigger substantial tax liabilities. We find that a tax-aware relaxed-constraint post-transition strategy significantly outperforms a traditional tax-agnostic long-only strategy in its ability to preserve and grow the investors after-tax wealth over the long term.