Despite the S&P 500 doubling investor money since 2023, persistent concerns about inflation, interest rates, and AI-driven market risks continue to shape investor sentiment and challenge long-term decision-making
Since the start of 2023, the S&P 500 has delivered a string of strong returns, defying a steady drumbeat of investor anxiety. Even as the index posted double-digit gains for three consecutive years and continued to climb in 2026, many investors remain preoccupied with risks ranging from inflation to the uncertain impact of artificial intelligence. This disconnect between market performance and investor sentiment highlights a recurring challenge: how to make rational decisions when fear, uncertainty, and doubt are ever-present.
For those who invested $10,000 in an S&P 500 exchange-traded fund at the beginning of 2023, the value of that investment would have roughly doubled by mid-2026. Yet, despite these results, optimism is not the prevailing mood. Instead, many market participants are focused on what could go wrong, rather than what has gone right.
Persistent Sources of Investor Anxiety
Market history shows that there is rarely a time when investors are free from worry. In the current environment, inflation remains a top concern. Although price increases have moderated from their 2022 peaks, the Federal Reserve's 2% inflation target remains elusive, and the path of future interest rates is a constant topic of speculation. The central bank's decisions on rates directly affect borrowing costs, consumer spending, and corporate profits, making them a focal point for both professional and individual investors.
At the same time, the rapid expansion of artificial intelligence has introduced new uncertainties. Companies are investing heavily in AI, but the long-term returns on these investments are unclear. Some analysts warn of potential bubbles, while others point to possible disruptions in the labor market and shifts in consumer behavior. These factors add to the sense of unpredictability, even as the market continues to rise.
Market Performance Versus Sentiment
Despite the ongoing concerns, the S&P 500's performance since 2023 has been remarkable. According to reporting by The Motley Fool, the index delivered total returns of 26% in 2023, 25% in 2024, and 18% in 2025. As of late July 2026, the year-to-date return stands at 9%. These figures reflect both price appreciation and dividends, and they underscore the difficulty of timing the market based on short-term fears.
Historically, periods of strong market returns have often coincided with heightened anxiety. In the 1990s, for example, the S&P 500 posted five consecutive years of returns above 20%, yet investors still worried about emerging market crises, rising rates, and geopolitical tensions. The lesson is that markets can thrive even when the news cycle is dominated by uncertainty.
For context, the Federal Reserve's target federal funds rate has remained above 5% since mid-2023, while core inflation has hovered between 2.5% and 3% for much of 2025 and 2026, according to the Bureau of Labor Statistics. These conditions have contributed to both market volatility and the ongoing debate about the sustainability of recent gains.
Building Resilience for the Long Term
Experienced investors recognize that fear, uncertainty, and doubt are constants in the financial markets. Rather than trying to eliminate these feelings, successful long-term investors focus on managing their reactions and maintaining a disciplined approach. This often means sticking to a well-defined investment plan, regularly reviewing asset allocation, and resisting the urge to make impulsive decisions based on headlines or short-term volatility.
While it is tempting to seek out the next big trend or to react to every new risk, research consistently shows that investor behavior-especially the ability to stay invested during turbulent periods-plays a critical role in long-term outcomes. Upgrading one's mindset and understanding the psychological aspects of investing can be as important as analyzing financial statements or economic data.
One key concept for investors is the distinction between volatility and risk. Volatility refers to the frequency and magnitude of price swings, while risk is the possibility of a permanent loss of capital. Markets can be volatile without being fundamentally risky for long-term investors who are diversified and have a clear time horizon. Recognizing this difference can help investors avoid costly mistakes and stay focused on their goals, even when headlines are unsettling.
