System Requirements
The thinkorswim system is designed to work on virtually all modern computer systems (which have a Java 2 runtime environment) but before you download and attempt to install the software platform make sure your computer meets our minimum hardware and operating system requirements.

If your computer meets our requirements, click here to log in/register and then proceed to download the software.

Required Recommended
Operating System1 Win 2000 10.4 XP 10.4
Processor PIII 1Ghz G4 800 Mhz 2 Ghz Intel compatible G5 2Ghz
HD Free Space 50MB2
Display Resolution 1024 x 768

1We also have clients who successfully run the software on Linux, Solaris and other Unix variants. Manual update of the software is currently required on these systems and we have no official support for configuring these operating systems.

2210MB is required for installation on PC due to the size of the included Java Virtual Machine. The application only requires 50MB to operate.

Internet Connection
Ideally you should use a broadband internet connection (DSL, Cable, or faster) but if necessary, you can run the software over a standard dial-up connection.

Access From Multiple Locations
All of your personal data is stored securely on our servers. Therefore, you can login and access your account(s) from any computer that has installed our software.

NOTE: If you attempt to login on multiple computers simultaneously, your access to live quotes will be adversely affected. Exchange regulations prohibit us from disseminating live quotes to the same user at multiple locations simultaneously. If you have a legitimate need for this feature please contact us and we can help you determine an appropriate solution.

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