Quote from GTC:
According to IB CSR, there is no minimum activity fee if there was no non-free data subscription to start with for the whole month. However, it would be very impractical and quite clumsy to try to trade with different order types. Without the data, it would be like trading blindfolded.
There IS a monthly activity fee. Where did you get such info from?
Monthly Activity Fee Minimums
IB caters to professional traders and investors and requires its customers to spend a monthly activity fee minimum which may include commissions, market data fees, and other fees. Those customers spending less than the activity fee minimums (as stated below) in any given month will be charged the difference between the minimum and the amount spent in a month.
In addition to monthly fee minimums we pass through market data fees from the exchanges for any real-time market data service in which a customer subscribes. Customers choosing to subscribe to US non-professional real-time market data will have the USD 10 (or USD equivalent) monthly fee waived if they spend USD 30 (or USD equivalent) or more in activity fees for the month.
Activity Fee Minimum: USD 10 per month
Ref: http://www.interactivebrokers.com/en/accounts/fees/minimumDeposits.php?ib_entity=llc#balance
