To provide an information display device enabling easy and quick retrieval of a desired stock even without specialized knowledge about stock identification information or corporation securities and having enhanced convenience and usability.

In this information display device, a corporation securities information database 5 is provided with a stock market information table for storing stock market information of each stock and a relevant information table for storing keywords such as names and products related to stocks, as relevant information, and in the case a retrieval condition is inputted, a controlling part 3 retrieves the relevant information table to display stock names corresponding to relevant information satisfying the retrieval condition in a list, reads stock market information from the stock market information table about a stock selected by the user among the stock names to display the stock market information.