We wrote last week that stock selection by construction, e.g., using factors such as stock fundamentals, does not trade off risk and return but does explicitly and transparently tilt a portfolio toward the desired stock characteristics or risk factor(s). When we just trade off risk and return, such as is the case when volatility minimization is used to build a low-volatility portfolio, the methodology does not take into account the individual stocks’ characteristics. As a consequence, the methodology could be adding unwanted risk(s) that come from the stock characteristics “preferred” by the risk-return methodology. The risk-return methodology of portfolio construction,