This study aims at investigating the impact of the expansion of price limits on the volatility of Damascus Securities Exchange, by comparing the fluctuations of the market under three different price limits systems, since the opening of the market until the end of 2014. Results of the study showed that the price limits expanding in the Damascus Securities Exchange leads to an increase in the volatility of stock returns. Consequently, setting narrower price limits will reduce the volatility, and this confirms the effectiveness of the system of price limits in reducing the volatility of Damascus Securities Exchange.