A momentum indicator suggests that the S&P 500 may not reach its peak until next year. This indicator, known as the Relative Strength Index (RSI), is a popular tool used by investors to gauge the strength of a stock or index. Currently, the RSI for the S&P 500 (NYSEARCA:SPY) indicates that there is still room for growth before reaching a peak. This suggests that the bull market may continue for some time before showing signs of slowing down. Investors should keep an eye on the RSI for the S&P 500 to help them make informed decisions about their investments in the coming months.