Retail Investors’ FOMO: 48% Admit Emotion-Driven Buys in 2026

Retail investors’ emotional rollercoaster isn't just a Wall Street story—it's a consumer behavior story playing out in brokerage apps and shopping carts. As 48% of respondents admit to FOMO-fueled trades, the same psychology that drives impulse clothing purchases now moves billions in tech stocks. For retailers, decoding this crossover unlocks new ways to design rewards, gamified shopping experiences, and authentic engagement that channels FOMO into brand affinity rather than portfolio churn.

The 2026 retail investing landscape is defined by a stark emotional contradiction: while only 20% of U.S. retail investors label themselves as emotional, nearly a third admit to trading on sentiment, and a striking 48% have made FOMO-driven investment decisions. This gap between self-perception and behavior, revealed in a new MarketWise survey of 1,002 retail investors, exposes the powerful tug-of-war between fear and hype that now dominates retail trading floors – increasingly located on smartphones and social feeds. The findings are set against a year of sharp market swings fueled by interest-rate uncertainty, AI stock frenzy, and an always-on social media narrative that amplifies every tick.

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Goldman attributes the shift to a market rally, easing geopolitical tensions, and soaring corporate confidence, with AI-related spending projected to drive about 40% of S&P 500 earnings growth this year.

The survey arrives as the S&P 500 oscillates between extremes. Goldman Sachs Research documented a dramatic sentiment flip: its U.S. investor sentiment gauge was negative in late March 2026, only to swing positive by late April – a full reversal in a matter of weeks. Goldman attributes the shift to a market rally, easing geopolitical tensions, and soaring corporate confidence, with AI-related spending projected to drive about 40% of S&P 500 earnings growth this year. This environment creates a perfect storm for emotional decision-making: the same AI hype that lifts portfolios can just as quickly crush them when reality does not meet inflated expectations.

Nvidia’s May 2026 earnings report perfectly illustrates this dynamic. The chipmaker at the heart of the AI boom delivered record numbers that beat Wall Street’s revenue and profit estimates and raised its forward guidance. Instead of rallying, the stock fell – marking the fourth straight quarter that a stellar report was followed by a sell-off. Retail investors had piled in ahead of the announcement, driven by AI mania and social media chatter. When the news landed, the FOMO turned instantly into a fear-driven rush for the exits. This ‘sell-the-news’ pattern highlights a structural behavioral flaw: pre-event hype creates overbought conditions, and any event – even good news – becomes a trigger for profit-taking or panic.

The survey data point to deeper vulnerabilities. The 20% vs. 31% vs. 48% mismatch shows that many investors are unaware of or unwilling to acknowledge their emotional triggers. This cognitive dissonance leaves them unprotected against whipsawing markets. The result is a measurable cost – not only in missed gains but in real dollars lost to ill-timed entries and exits. MarketWise’s research aims to quantify that cost, though detailed dollar figures were not included in the syndicated excerpts. Nevertheless, the implications are clear: emotional trading erodes long-term returns, widens bid-ask spreads, and contributes to market inefficiencies.

Compounding the issue is the growing reliance on AI tools for reassurance and guidance during high-stress moments. The survey notes that many retail investors now turn to AI as a second opinion, essentially outsourcing emotional regulation to algorithms. While AI can provide data-driven insights, it may also reinforce biases if investors use it selectively to confirm pre-existing fears or FOMO impulses. This raises critical questions about financial literacy, the responsibility of platform providers, and the need for regulatory frameworks that address AI-driven advice in retail investing.