Matthew, it says ITM is only available for per-profitable-trade subscription. My trading sysyem is an intraday trading system, and requires that subscribers get my trade signals instantly, for them to buy at the same price that I am buying at. But, whether I charge by the week, or by per-profitable-trade, I should have the option to select ITM for my subscribers. Email is much too slow for intraday trading.

No, this is a misunderstanding. ITM is available for all trading systems.

I believe what you are referring to is a feature whereby a system vendor that charges per-trade can allow his subscribers to pay only for those signals received when the ITM window is open. (I.E. if the subscriber goes to sleep and closes his ITM window, he won’t be charged for trades while he sleeps.)

In any case, to be clear: All systems can use Instant Trade Messenger (ITM).