The market has the perception that the powers that be will not allow the markets to falter ahead of the fall elections.
If that perception fails, look out below.
"Why is my language not clear to you? Because you are unable to hear what I say. You belong to your father, the devil, and you want to carry out your father’s desires. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies."
John 8:43-44