Concordance Based Stock Index Prediction

Measures: Tau = 0.297839, Gini = 0.621352 and Rho = 0.433018 Predictor: S&P (1/29/1969 to 12/8/1969), Forecast: S&P (from 5/2/2016 to 5/20/2016)

Note poor concordance score for tau indicating that the recent period is not very similar to past behaviors.

Graph showing concordance over full periods, scaled for percent change, plus forecast.

Graph showing concordance over last 67 days including 15 day forecast.