The purpose of this report is to elaborate trends that are followed today in investment banking around the globe. This report will put light on investment banking in US and foreign countries, how they raise capital for their clients and instruments that they popularly use. We will make discussion about trends, their pros and cons etc. Investment banks are financial institutions that help individuals, corporations and governments in raising capital by underwriting or issuing securities on behalf of them. They also assist companies whom are involved in merger or acquisition with any other authority and provide them with services of market making, equity securities, foreign exchange and fixed income instruments etc. These banks are mainly involved in two services, one is trading securities by exchanging them with cash or other securities and other is promoting securities in order to sell them to public. In this ways investment banking involves buying and selling side components, so that they can increase client’s annual turnover and make huge profits for them