#ES is trading below yesterday low, I expect the buyers to show up only because we are in a bullish trend. Also I expect to create a lower low during today in ES futures.
#NQ is weaker and below mid-point of the regression channel.
#YM is even weaker than #NQ, this is key, a change for the last 23 days. If buyers do not show up here, this could develop, in a few days, into a larger movement than the one I expect today.
Remember than most of the past battles were won by the bulls. Market internals can give more info 15 min after the open.