A two-month surge in the S&P 500 index, which was followed by a 2.64% decline on Friday, has triggered a rare, historically flawless bullish signal that could point to massive stock market gains over the next year.
Unprecedented Momentum
The S&P 500 recently logged an explosive advance, climbing more than 19% within a two-month window. Carson Group Chief Market Strategist Ryan Detrick said in an X post that “The S&P 500 just had one of the best two-month rallies ever, as it was up 19.5% in two months on 5/29/06.”
While the index recently suffered a sharp drop on Friday—marking its worst single day of the year so far—market historians urge investors to look at the bigger picture.
Following such a 19% rally over two months, stocks were “never lower 1 month, 3 months, 6 months, or a year later.”
Looking out over a 12-month horizon, the index boasts an average gain of more than 40%. Evaluating the data, Detrick could not hide his optimism. “My oh my,” he remarked regarding the potential 40% average gain ahead.
Historical Precedent
The real story lies in the forward-looking data. Historical market tracking shows that a two-month surge of this magnitude is incredibly rare, having occurred only seven other times since 1950.
Detrick noted that even during the market’s healthiest cycles, sharp pullbacks are completely normal. “Good time to remember that even the best years have a bad day or two (or more),” Detrick posted, reassuring investors that market breadth remains remarkably resilient.
Strong Underlying Breadth
Even with a 2.5% weekly drop, underlying market mechanics remain heavily skewed toward the bulls. Data shows that “6 sectors were green and more stocks on the S&P 500 gained than fell last week.”
History shows that in 1997, the S&P 500 “fell nearly 7% and still gained more than 30% for the year,” proving that temporary volatility rarely derails powerful, historic bull runs.
Detrick stated that 22 times the index gained more than 20% for the year, the average worst day was 3.5%, placing the recent drop in standard historical context.
How Have Markets Performed In 2026?
The S&P 500 index has advanced 7.66% year-to-date. Similarly, the Nasdaq Composite index was up 10.65%, and the Dow Jones gained 5.13% YTD.
The SPDR S&P 500 ETF Trust (NYSE:SPY) and Invesco QQQ Trust ETF (NASDAQ:QQQ), which track the S&P 500 and Nasdaq 100, respectively, closed lower on Friday. The SPY ended down 2.58% at $737.55, while the QQQ was lower by 4.80% to $705.06.
Meanwhile, Dow tracker, State Street SPDR Dow Jones Industrial Average ETF Trust (NYSE:DIA), closed 1.35% lower on Friday.
Disclaimer: This content was partially produced with the help of AI tools and was reviewed and published by Benzinga editors.
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