Linking All Averages

Brinson Attribution was originally conceived as a single-period evaluation of the impact of sector effects vs. issue effects. Its development has moved along two dimensions. The first is its expansion to include multiperiod evaluations. The second is toward a clearer understanding of its purpose as an evaluation of controllable investment decisions.

BOSTON--(BUSINESS WIRE)--Opturo, Inc., has created a new web-based deployment of its Investment Analytics software, which it calls ODIN. Users of ODIN have access to Opturo's wide range of performance, attribution and risk analytics with the portability, scalability and ease-of-use of the web.

How should a performance modeler address the following?Is the return of a short, considered itself as a financial instrument or derivative investment vehicle, the return of its underlying (i.e., the shorted holding), implying that when the short loses money that “the return of the short” itself is positive? That is, if a short lost money…