Quote from Pekelo:
You don't have to be up all night, that is the beauty of it. I am not sure what timezone you are in, but the huge upgap was already present at 9 pm Eastern, so all you had to do is go short with a target limit order close to the gap. Everything else was automatic, while you were sleeping.
Another way to get ready for a possible 2nd gap is that you just put a limit order somewhere where you think the market might trade up overnight. The close was around 1091, so a short limit order around let's say 1096 would have been good expecting an at least 5 pts upgap. Now it isn't guaranteed that your limit order gets filled (there might be no upgap or it is only 4 points) but the whole point is that you don't have to sit there and wait it out, you just go to sleep and see what you have fished by the next morning.
A 3rd way is that you go immediately short at the close. If there is an upgap, you are pretty much guaranteed that eventually there will be no loss, because the market will return to this price. So you can average into the position if it goes up. But if it goes down overnight, you are already short from the close, thus profit....
Quote from Eko_Trader:
Tech is the major thing holding the market. I'm not bullish here much nor bearish. I just think 6-7% in as many days is a bit excessive, let's see if the market agrees.
Quote from Pekelo:
I posted an explanation in the ES Gapfill Journal, I will quote it for explaining it further, although I think, it is pretty obvious...
The 2nd gap rule "guarantees" that after a gap, the closing price will be visited again sometimes during the next day (if there is a same direction 2nd gap) with high probability (90%)...