The Tell: Wall Street analysts are souring on stocks. That could mean the S&P 500 is poised for a 15% rally, B. of A. says.

Wall Street analysts are souring on U.S. stocks. Historically, that has meant that the market is likely to climb during the coming months, with gains sometimes breaking into double-digit percentage territory.

Bank of America’s sell-side indicator, a gauge of Wall Street analysts’ expectations for U.S. stock-market performance, declined by 37 basis points to 53.1% in October while the S&P 500 fell by 2.2%, according to a report by Bank of America’s Savita Subramanian obtained by MarketWatch on Wednesday.

The…