The thinkBack tool is a thinkorswim feature designed for option back-testing. It stores nearly a decade of historical option trade data and allows you to back test strategies by entering hypothetical trades in this virtual trading environment.

Backtesting is the evaluation of a particular trading strategy using historical data. Results presented are hypothetical, they did not actually occur and there is no guarantee that the same strategy implemented today would produce similar results.

You may also like
Analyze preview
The interfaces of the Analyze tab provide you with analysis techniques of many kinds, ...
Risk Profile preview
Risk Profile
The Risk Profile interface enables you to estimate risk probability based on risk curves. These ...
Add Simulated Trades preview
Add Simulated Trades
The interface of the Add Simulated Trades tab may be quite reminiscent of that of All Products. ...