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513 Research Articles

Combining Equity Sector and Factor Investing

Are equity sector and factor investing complementary? In their May 2017 paper entitled “Factors vs. Sectors in Asset Allocation: Stronger Together?”, Marie Briere and Ariane Szafarz compare efficient sector investing (diversifying economic risks) and efficient factor investing (diversifying across risk factors) for U.S. stocks, and then assess advantages of combining the two approaches. They first construct two efficient… Keep Reading

Ex-U.S. Equity Factor Model Horse Race

Which equity factor model is best among non-U.S. global stock markets? In other words, what market/accounting variables are most important to investors screening non-U.S. stocks? In his February 2020 paper entitled “A Comparison of Global Factor Models”, Matthias Hanauer compares eight widely used equity factor models on a common dataset spanning stocks from 47 non-U.S…. Keep Reading

Idiosyncratic (Pure or Residual) Momentum as a Stock Return Predictor

Does stock momentum purified of market, size and book-to-market factor risks (idiosyncratic or residual or pure momentum) distinctly outperform conventional momentum? In their April 2017 paper entitled “The Idiosyncratic Momentum Anomaly”, David Blitz, Matthias Hanauer and Milan Vidojevic revisit idiosyncratic past stock return as a return predictor. They specify conventional momentum as total return from 12 months ago… Keep Reading

Investment Factor Diversification

Is diversification across stock and bond factors superior to diversification across asset classes? In their August 2013 report entitled “Investing in Systematic Factor Premiums”, Kees Koedijk, Alfred Slager and Philip Stork measure the gross performances of widely used stock and bond factors and pit portfolios diversified across those factors against portfolios diversified across asset classes. For… Keep Reading

Overview of Equity Factor Investing

Is equity factor investing a straightforward path to premium capture and diversification? In their October 2014 paper entitled “Facts and Fantasies About Factor Investing”, Zelia Cazalet and Thierry Roncalli summarize the body of research on factor investing and provide examples to address the following questions: What is a risk factor? Do all risk factors offer attractive premiums? How stable and robust are these… Keep Reading

When to Look for Momentum and Reversal Intraday

Do stock return momentum and reversal strategies work better when focused on certain intraday intervals rather than close-to-close, according to whether trades are primarily exploiting information or supplying liquidity? In his April 2017 paper entitled “Reversal, Momentum and Intraday Returns”, Haoyu Xu examines intraday versions of momentum and reversal anomalies, with focus on the first two… Keep Reading

Factor/Smart Beta Portfolio Implementation Details

How should factor-based (style) investors proceed after picking a factor to exploit? In their September 2017 paper entitled “Craftsmanship Alpha: An Application to Style Investing”, Ronen Israel, Sarah Jiang and Adrienne Ross survey style portfolio implementation options. They start with a brief discussion of style portfolios types and then focus on portfolio design and implementation. They note trade-offs associated… Keep Reading

Timing Stock Factor/Smart Beta Strategies

Is stock factor timing attractive? In their September 2016 paper entitled “Timing ‘Smart Beta’ Strategies? Of Course! Buy Low, Sell High!”, Robert Arnott, Noah Beck and Vitali Kalesnik investigate whether timing of stock factor (long-short) and smart beta (long-only) strategies is attractive. They consider eight widely used factors and eight smart beta strategies. Each factor portfolio is long (short)… Keep Reading

Predicted Factor/Smart Beta Alphas

Which equity factors have high and low expected returns? In their February 2017 paper entitled “Forecasting Factor and Smart Beta Returns (Hint: History Is Worse than Useless)”, Robert Arnott, Noah Beck and Vitali Kalesnik evaluate attractiveness of eight widely used stock factors. They measure alpha for each factor conventionally via a portfolio that is long (short)… Keep Reading

Factor Overoptimism?

How efficiently do mutual funds capture factor premiums? In their April 2017 paper entitled “The Incredible Shrinking Factor Return”, Robert Arnott, Vitali Kalesnik and Lillian Wu investigate whether factor tilts employed by mutual fund managers deliver the alpha found in empirical research. They focus on four factors most widely used by mutual fund managers: market, size, value and momentum…. Keep Reading