It seems that the Federal Reserve will likely pivot away from its hawkish monetary policy as global US dollar liquidity is now in the "danger zone where bad stuff happens," Morgan Stanley's Mike Wilson said in a note.

Just like the Bank of England had to intervene last week by purchasing long-dated bonds to control soaring gilt yields, the Fed will also likely have to intervene similarly, whether that means a pause in rate hikes or full-out quantitative easing.

"The first question to ask is, when does the US dollar become a US problem? Nobody knows, but more price action of the kind we've been experiencing will eventually get the Fed to back off," Wilson said.

According to Wilson, the earnings decline will be led by several macro risks that firms have been forced to navigate in recent months, including China's COVID lockdowns, a soaring US dollar, higher interest rates, and weakness in Europe's economy. 

"We suspect the uncertainty that these factors foster will lead to both guidance pulls and lowered guidance, both headwinds for forward earnings estimates," Wilson said. And the expected decline in earnings expectations could be big because so far, forward earnings estimates have fallen by just 1% since mid-June.

"It takes a long time for next twelve months EPS to fall for the S&P 500 because it's a very high quality, diversified index and companies are loathe to throw in the towel on the future quarters until they have to. It appears that more companies are reaching that point where they can't fight it anymore," he explained.

Wilson hopes the S&P 500's forward EPS estimates will fall to $225 or below, combined with either a rising equity risk premium or falling ISM PMIs, before he gets confident that a sustainable low has been made in the stock market. The forward EPS estimate for the S&P 500 is currently at $237. 

"Bottom line, in the absence of a Fed pivot, stocks are likely headed lower. Conversely, a Fed pivot, or the anticipation of one, can lead to a sharp rally especially because we are so oversold... Just keep in mind that the light at the end of the tunnel you might see if that happens is actually the freight train of the oncoming earnings recession that the Fed cannot stop at this point," Wilson concluded.