This study aims to determine the effect of BI rate rate, exchange rate, and Gross Domestic Product tehadap LQ45 Index and to find out which dominant variables have an effect LQ45 index in Indonesia Stock Exchange.This study uses time series data from 1995-2014 obtained from the Capital Market Information Center (PIPM) Pekanbaru, Central Bureau of Statistics (BPS), and Bank Indonesia Pekanbaru a…