%0 Journal Article %A David Blitz %T Factor Investing Revisited %D 2015 %R 10.3905/jii.2015.6.2.007 %J The Journal of Index Investing %P 7-17 %V 6 %N 2 %X This paper takes another look at the recommendation of Blitz [2012] to allocate strategically to the value, momentum, and low-volatility factor premiums in the equity market. Five years of fresh data show that such a factor investing strategy continued to deliver out-of-sample. The potential added value of the two new factors in the Fama–French five-factor model, operating profitability and investment, is investigated and found to depend critically on the performance metric that is considered most important. The paper also reviews the role of small-cap stocks, factor timing, longonly versus long-short portfolio construction, international evidence, and factor investing beyond equities.TOPICS: Factor-based models, portfolio construction, volatility measures %U https://jii.pm-research.com/content/iijindinv/6/2/7.full.pdf