A plunge of more than 20% in U.S. stocks is looking more like a real possibility, according to Morgan Stanley strategists led by Michael Wilson.
While it's still a worst-case scenario, the bank said that evidence is starting to point to weaker growth and falling consumer confidence.
In a note on Monday, the strategists laid out two directions for U.S. markets, which they dubbed as "fire and ice." In the fire outcome, the more optimistic view, the Federal Reserve pulls away stimulus to keep the economy from running too hot.
"The typical 'fire' outcome would lead to a modest and healthy 10% correction in the S&P 500," they wrote.
But it's the more bearish "ice" scenario that's gaining traction, the strategists said, laying out a picture in which the economy sharply decelerates and earnings get squeezed.
Stocks globally fell on Monday on concern that the debt crisis at China Evergrande Group could impact the broader financial system. U.S. futures pointed to a drop of about 1% at the market open. Still, the S&P 500 is just about 2% off its all-time highs.