PT - JOURNAL ARTICLE AU - Leon Chen AU - Zhi Da AU - Ernst Schaumburg TI - Implementing Black-Litterman Using an Equivalent Formula and Equity Analyst Target Prices AID - 10.3905/joi.2015.24.1.034 DP - 2015 Feb 28 TA - The Journal of Investing PG - 34--47 VI - 24 IP - 1 4099 - https://pm-research.com/content/24/1/34.short 4100 - https://pm-research.com/content/24/1/34.full AB - We examine an alternative and equivalent Black and Litterman [1992] formula using classical multivariate analysis, which is easier to interpret and allows more general view formulations than the original formula. Specifically, the equivalent formula provides a more intuitive explanation under the limiting case of deterministic views, and makes it easier to show the resulting optimal portfolio as a combination of the market portfolio and a long–short view portfolio. The equivalent formula also allows for more convenient empirical implementations when views and expected return priors are correlated. We then use a numerical example to illustrate the equivalent formula, and we also implement the formula in an optimal asset-allocation setting, using equity analysts’ 12-month-ahead target price forecasts for the period 1999–2010. We show that the optimal portfolio outperforms the market (S&P 500) and this result is robust across different time periods and model parameter choices.TOPICS: Security analysis and valuation, quantitative methods, portfolio construction