The S&P 500 index is expected to close near its all-time high in 2025, marking the third consecutive year of double-digit growth for the index. A series of major events occurred that year: President Trump's inauguration for a second term, a historic moment when the stock price of the world's most valuable company plummeted 20% in a single day, and Bitcoin's price briefly surged past a historic high of $109,000 before falling more than 30%. Large technology companies invested over $300 billion in artificial intelligence, while startups attracted more than $150 billion in investments.