The development of Islamic capital markets illustrates that the Islamic capital market has attracted the attention of various circles of society. With the birth of the Islamic Sharia principles in the financial industry turned out to be very positive impact on the world of investment, especially in the capital market. The purpose of this study was to analyze the influence of fundamental factors, inflation and Gross Domestic Product (GDP) on stock prices of companies listed in JII during 2012 - 2015. By using a multiple linear regression analysis to measure the influence of independent variables on the dependent variable. Concluded that the variable PER, NPM, inflation and GDP have a relationship that is not in line with the movement of the stock price or in other words have a negative relationship. While the variables PBV, EPS, ROA and DER have a positive relationship or the direction of the stock price movement. Through t test with significance level of 5% is known that only the variables PBV, EPS, ROA and DER have a significant effect on stock price movements, while the rest did not significantly influence stock prices. Meanwhile, through the F test shows that that together - the variables PER, PBV, EPS, NPM, ROA, DER, Inflation and GDP have a significant effect on stock prices, where the variable EPS has the most dominant contribution of 48.3%. A total of 91.7% of change or variation in stock prices can be explained by the variable PER, PBV, EPS, NPM, ROA, DER, Inflation and GDP, while the remaining 8.3% is explained by other variables that are not described in this study. 
Keywords: Fundamental Factors, Inflation, GDP, the stock price.