Financial statement information is useful for investors, by analyzing the results of the company's performance, where one measure of success is the profitability of the company's management. Profitability ratios will provide an overview of the effectiveness of the management of the company. The larger the ratio, the better, because the prosperity of the owner of the company increased with greater profitability. The purpose of this research was to examine the effect of working capital, liquidity, activity, company size, and leverage on profitability.
The population of this research is manufacturing companies listed on the Stock Exchange the period 2012-2014, a total sample of companies amounted to 81 samples were taken by using purposive sampling method. The type of data used is secondary data, using the method of data collection documentation. The method of analysis in this research is multiple regression analysis.
These results indicate that the efficiency of working capital is a significant positive effect on profitability. Liquidity is not positive and significant impact on profitability. The ratio of the activity is a significant positive effect on profitability. Company size is not positive and significant impact on profitability. Leverage a significant negative effect on profitability.

Keywords: Working Capital, Liquidity, Activities, Company Size, Leverage and Profitability