i need to protect some positions. if one could put in a limit order to sell short er2 or es futures at a set price; can this be guaranteed to actually work in a gap down event? if so, would a standard gtc order be the best route? if anyone from ib or someone with experience trying to do this is out there; it would be very appreciated.
It can probably be done with a "stop" order. If you're long and want out when the price drops to a certain point, you would do a "sell stop" order. With IB, you have to make sure that your "outside of regular trading" hours is set in the configuration. The market isn't open 24/7, so if it gapped between sessions your stop order could be elected at a much different price than you placed your order at. Ask IB to be sure.