In this chapter we show how machine learning, more specifically support vector machine/regression (SVM/R, can help building global tactical asset allocation (GTAA) portfolio. First, we will present a quick literature review on GTAA, explaining the different families of asset allocation. We will then go through a historical perspective of tactical asset allocation in the last 50 years, introducing the seminal concepts behind it. Section 11.3 will explain the definition of support vector machine (SVM) and support vector relevance (SVR). Section 11.4 will present the machine learning model used for tactical asset allocation and will discuss the results.
Running the risk of stating the obvious, the objective of asset allocation is to obtain the best expected return‐to‐risk portfolio (Dahlquist and Harvey, 2001). The authors distinguish three families of asset allocation: (i) benchmark asset allocation, (ii) strategic asset allocation, (iii) GTAA (see Figure 11.1). The investment portfolio strategy built in this chapter belongs to the third class of model where predictions models use today's information set in order to forecast asset returns.