Quote from pokerpal:
There are a number of positive factors about IB, but integrity is not one of them.
3-4 years ago they said I made a trade I did not make. Their position was, more or less, "prove you didn't enter that trade"...an impossible task. Anyway, I sold out that position I didn't enter for about a six thousand buck loss.
Contrast that with E Trade foul up. That firm failed to execute on a stop order. They admitted the mistake and the next day credited my account for Ten thousand.
CONCLUSION: The latter firm had integrity, the former firm doesn't have any.