Biggest Stock Losers Today

Today's biggest stock losers are S&P 500 companies with the largest percentage price declines during the current trading session. Sharp drops often reflect earnings misses, guidance cuts, regulatory setbacks, or sector-wide selling — and are frequently accompanied by elevated trading volume.

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S&P 500 · Updates every 5 min during market hours
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About This List

Stock losers are companies whose share price has fallen the most on a percentage basis during today's session. The stocks on this list are sourced from the S&P 500, the 500 largest U.S. companies by market capitalization, ensuring meaningful liquidity and analyst coverage.

A sharp single-day decline is typically triggered by a specific catalyst: an earnings report below analyst estimates, a guidance reduction, a product recall, an adverse legal ruling, or broader risk-off selling across a sector. Understanding the reason behind the drop is critical — a 10% decline on an earnings miss is fundamentally different from a 10% decline due to macro-driven sector rotation.

Contrarian value investors watch losers lists for oversold candidates — stocks that may have fallen beyond what fundamentals justify. Momentum traders who are short the market use this list to confirm ongoing downside pressure. For any holding that appears here unexpectedly, set a Stock Alarm Pro percent-change alert to be notified of further moves in either direction.

Frequently Asked Questions

What are stock losers?
Stock losers are companies whose share price has fallen the most in percentage terms during the current trading session.
How often is this list updated?
Prices update from real-time market data during market hours (9:30 AM – 4:00 PM ET). The list refreshes every few minutes.
Should I buy stocks that are losing today?
Not automatically. A sharp decline may reflect a fundamental problem or a temporary overreaction. Always research the cause of the drop before making any decision.
What does high volume on a loser mean?
Heavy volume on a declining stock confirms broad institutional selling. Low-volume declines may reverse quickly, while high-volume drops often signal sustained selling pressure.
Are these only S&P 500 stocks?
Yes. This list covers the S&P 500 — approximately 500 of the largest U.S. publicly traded companies.

Data is provided for informational purposes only and does not constitute investment advice. Stock prices and rankings update in real time during U.S. market hours. Past performance is not indicative of future results.