Core Insights - Historical stock market performance can sometimes predict future performance, which is why investors analyze past data [1] - The S&P 500 is on track to achieve a rare milestone of three consecutive years with double-digit percentage gains, a feat accomplished only 11 times in the last century [2][5] Current Performance - The S&P 500 increased by 26% in 2023 and 25% in 2024, with a current gain of over 11% as of October 10, 2025, indicating a potential for a third consecutive year of double-digit gains [4] - Achieving three consecutive years of double-digit returns is historically rare, having occurred only 11 times in the last 100 years [5] Market Sentiment - Current market conditions are influenced by geopolitical tensions, particularly President Trump's threat of additional tariffs on Chinese imports, which is causing investor anxiety [6] - The S&P 500 is trading at record highs, with the Buffett indicator suggesting that the market may be overvalued, leading to concerns about potential corrections [6] Historical Context - Historically, significant market movements often follow periods of strong performance, although future performance remains uncertain [8][9] - In three of the 11 instances where the S&P 500 achieved three consecutive years of double-digit gains, the trend ended abruptly, as seen in the market crash of 1929 following a strong performance [10]