Investors may want to keep a close eye on their portfolios as one of Bank of America’s most respected market gauges edges closer to a warning sign. The bank’s Sell Side Indicator, which functions as a contrarian tool, is currently teetering on the brink of a sell signal. This specific metric operates on the logic that when sentiment becomes excessively bullish, it often signals that the market is overextended and due for a correction. According to a recent note to clients, the indicator climbed to 57.2 percent in September, leaving it just 0.3 percentage points away from officially entering sell territory.
This current reading marks the highest level seen since March 2022, raising alarms among those who track long term performance trends. Historical data analyzed by Bank of America suggests that once this signal flashes red, the S&P 500 tends to underperform significantly. While the index hasn’t always crashed immediately, it has averaged gains of only 3 percent over the ensuing twelve months compared to its typical ten percent historical average. In fact, looking back at data starting from 1985, there were times when the benchmark actually saw negative returns more than a third of the time after hitting these levels.
The caution comes at a time when broader economic pressures are mounting across Wall Street. Rising bond yields have become a primary concern for analysts, with both 10 year and 30 year yields hitting twenty four year peaks this week due to various fiscal worries. Higher yields typically act as a drag on riskier assets like stocks, making equities less attractive by comparison. Even though major indices remain near all time highs, experts warn that this strength is deceptive because it is being driven by a handful of artificial intelligence and tech giants rather than broad growth.
Beneath the surface of these record breaking numbers, signs of fragility are appearing throughout the rest of the market. Analysis from firms like Ned Davis Research indicates that market breadth has hit record lows relative to where the S&P 500 stands today. Furthermore, research from Rosenberg Research shows that the median stock within the index has actually dropped fifteen percent from its fifty two week high. Together with Bank of America’s looming sell signal, these factors suggest that while the headlines look positive, many individual companies are already feeling the strain_
