Abstract: Market manipulation remains the biggest concern of clients in today’s securities market, despite fast and strict responses from regulators and exchanges to market participants that pursue such practices. The existing methods in the industry for detecting fraudulent activities in securities market rely heavily on a set of rules based on expert knowledge. In this paper we use authenticated data structure(ADS) to ensure integrity of data. By use of authenticated data structures, we can prevent this market manipulation done on the cloud in the form of stock bashing, pump and dump and runs etc. Solution to prevent clients buyers from this fraud or false information is that the server need to give a digest , proof of the information along with query answer to the client. And the client on the other hand can verify the information to be legitimate or not by the help of query, digest, proof, public key.
Keywords: Market manipulation, ADS, Cloud, Client.