This morning we were all trying to get long on the OR trade you can see in this chart - because the market was gap down and the VAL was 4.5 points above the ORH. The 2 white dotted lines are the OR and the yellow lines are +1 and -1 above and below this range.

So people were bidding orders from 1279.50 to 1280.50. The question was: How long do you leave that order in place before the concept of Opening Range trade is over?

I believe that the answer is: "Once the market had moved above the ORH+1 the long from below the ORL was defunct and the limit order should be killed."

If anybody has a better explanation or more details then please add to this topic.