The market thought it said something positive about negotiations. The market goes up.
The market thought he said something negative about the negotiations progress, or that there are basically no negotiations. The market goes down.
He is playing yoyo with the market. The pressure to act rises as shortage and inflation rise, and recession looms.
The guy is competent in financial and economics theory. But in the reality he is facing, he does not understand that the opposition has already decided and made its move, and that the ball is in his court now. He cannot handle this.