Watch for reversal. Taking into account large volume of trade is a good idea.
I have many reasons to believe that the upward trend is over. But I'm not going to do anything until the black channel will not be broken.
Already there are stocks that have closed the gap. Earlier than SPY. This means that even if SPY continues to rise, it will not influence.
The picture is so clear. I would not be surprised if today will limit the short positions.