Investing in Global Markets: Big Data and Applications of Robust Regression

• Main Author: John eGuerard
• Format: Article
• Language: English
• Published: Frontiers Media S.A. 2016-02-01
• Series: Frontiers in Applied Mathematics and Statistics
• Subjects: big data; outliers; Portfolio Management; Robust Regression; portfolio selection
• Online Access: http://journal.frontiersin.org/Journal/10.3389/fams.2015.00014/full

In this analysis of the risk and return of stocks in global markets, we apply several applications of robust regression techniques in producing stock selection models and several optimization techniques in portfolio construction in global stock universes. We find that (1) the robust regression applications are appropriate for modeling stock returns in global markets; and (2) mean-variance techniques continue to produce portfolios capable of generating excess returns above transaction costs and statistically significant asset selection. We estimate expected return models in a global equity markets using a given stock selection model and generate statistically significant active returns from various portfolio construction techniques.