Your IP address can reveal several pieces of information. Primarily, it can give a rough estimate of your geographical location, often to city-level precision. It can also be used to identify your Internet Service Provider (ISP). By knowing the ISP, one could potentially determine the type of services (DSL, cable, mobile) you're using. Additionally, if used maliciously, IP addresses can potentially be leveraged for hacking purposes. However, they do not reveal personal details like your name, exact address, or financial information directly.