Can Stocks Defy Gravity in 2026? – Part 2

A person stands on a mountain peak overlooking blue mountains under a clear sky. Text reads: Market Sense by HB Wealth: Can Stocks Defy Gravity in 2026? - Part 2. December 2, 2025.
Bar chart showing S&P 500 forward 12-month returns after extremes in 36-month rolling returns. Returns range from +26.1% at -2 std dev to -3.3% at +2 std dev, with both average and median forward returns shown.

The S&P 500’s 36-Month Rolling Return neared 2 standard deviations from norm in September. The chart below shows what historically happened after extremes were reached in the measure. The more extreme the deviation, the lower the return prospects.

Likewise, such extreme deviations above norm generally lower the probability of a positive return in the forward 12 months. The index was higher about 40% of the time after at least a standard deviation surge beyond norms, while it was higher more than 75% of the time after a drop of at least a standard deviation.

HB Wealth is an SEC Registered Investment Adviser and the information provided is for informational purposes only. Additionally, the information should not be construed as investment advice or a recommendation to buy or sell any security or other financial instrument. Past performance is not indicative of future results. Investing involves risk, including the possible loss of principal. The views expressed are those of the author and do not necessarily reflect the opinions of HB Wealth. Please consult your financial advisor before making any investment decisions.

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Gina Martin Adams, CFA, CMT

Chief Market Strategist, Shareholder

Gina Martin Adams, CFA, CMT, is the Chief Market Strategist for HB Wealth. With more than 25 years of experience at leading global financial institutions, Adams brings deep expertise in market analysis, thematic research, and translating complex economic trends into actionable strategies. She collaborates with HB Wealth’s investment team to deliver timely market perspectives, share actionable insights, and enhance the firm’s visibility as a leading voice in the industry. She contributes to advancing proprietary research, supporting the development of new investment products, and enhancing the client experience through thought leadership and education. She pursues a top-down perspective and model-based approach, leveraging fundamental, technical, and quantitative perspectives to inform investment decisions, and frequently presents her views in the media and at industry conferences, professional associations and investment organizations.

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Matthew Sanders

Senior Investment Research Analyst

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