These problems appear to have occurred in Thinkorswim’s Portfolio Margin Accounts during the beginning of August 2011. Additionally, it appears that many traders were forced to meet margin calls and those that were unable to do so were forced to sell positions (incurring additional damages).
The White Law Group continues to investigate the software problems recently encountered by TD Ameritrade and Thinkorswim.īased on the information gathered thus far, it appears that a software glitch may have precluded options traders using Thinkorswim’s trading platform from executing certain trades.
