Master’s Thesis from the year 2015 in the subject Business economics - Banking, Stock Exchanges, Insurance, Accounting, grade: %86.20, Islamic University of Gaza, language: English, abstract: This study aimed to predict stock prices in Palestine Stock Exchange (PEX) by testing group of financial ratios and find a quantitative model, in which can be relied upon to predict the stock price for each sector. This model will help investors make rational decisions when they make investment decision in the financial market. To achieve this purpose, (17) financial ratios from (35) listed companies were tested using the available data for period 2009-2013. These ratios were analyzed using multiple regression to find the best model for each sector of (PEX). Several financial ratios can be used to predict the stock price in the industry sector, which are (earning per stock, market price on book value, days sales outstanding, fixed assets turnover, return on equity and profit margin). In the investment sector, the following ratios (market price on book value, assets turnover, market price on cash flow and fixed assets turnover) can be used to predict the stock price. Adding to that, the ratios of (earning per stock, market price on book value and return on equity) can predict the stock price of service sector. In the insurance sector, the ratios of (earning per stock, return on assets, debt ratio and assets turnover) can be used in predicting stock price. Finally, the ratios of (market price on book value, earning per stock, return on equity, basic earning power and fixed assets turnover) predicting the banking sector stock price. The study recommended the need to increase attention and caring when preparing the financial statements and must be prepared according to the Palestinian Stock Exchange standards, and the investors can rely on financial analysis of the financial statements when making financial investment decisions.