Stock market outlook 2026: JPMorgan says retail investors will drive next big rally - heres what it means for investors

US stock market prediction 2026: Retail investors are fueling a stock market rally, pouring billions into ETFs, a trend JPMorgan Chase predicts will continue into 2026. Despite warnings of AI bubbles and high valuations from seasoned investors like Warren Buffett and Stanley Druckenmiller, everyday traders remain active, buying dips and chasing gains, keeping markets vibrant.