10 Best & Worst Performing Stocks in 2025

Written byDavid Feng
Monday, Dec 22, 2025 4:25 am ET1min read
Aime RobotAime Summary

- 2025 equity markets showed sharp polarization, with storage/memory semiconductors and gold miners leading due to AI infrastructure demand and inflation hedging.

- Top performers benefited from tightening supply chains in data center storage and renewed safe-haven demand for precious metals861124-- amid macroeconomic shifts.

- Underperforming sectors included healthcare861075-- (facing pricing pressures and regulatory risks) and software861053-- (disrupted by AI automation reducing margins and client spending).

- The divergence reflects a broader market trend favoring AI-enabling infrastructure and tangible assets over sectors where AI acts as a disruptive force.

Equity market leadership in 2025 has been sharply polarized, with clear winners driven by hard-asset reflation and AI infrastructure demand, while laggards cluster in healthcare and software sectors disrupted by structural shifts.

On the upside, the year’s top-performing stocks are dominated by storage and memory semiconductor names, alongside precious metals exposure. Companies tied to HDDs, memory chips, and AI-driven data center storage have surged as supply tightened and pricing power returned.

At the same time, rising gold prices and renewed safe-haven demand propelled mining stocks into the top ranks, reinforcing the market’s tilt toward tangible assets and inflation hedges.

In contrast, the worst-performing stocks reveal two consistent weak spots.

Healthcare, particularly large-cap pharmaceuticals and managed care, has struggled amid drug pricing pressure, regulatory risks, and fading post-pandemic tailwinds.

Meanwhile, software and IT services firms have come under pressure as AI automation disrupts traditional business models, compresses margins, and accelerates client spending discipline.

The divergence highlights a broader 2025 theme: markets are rewarding companies leveraged to AI infrastructure and real assets, while punishing sectors where AI acts as a substitute rather than a growth catalyst.

Senior Research Analyst at Ainvest, formerly with Tiger Brokers for two years. Over 10 years of U.S. stock trading experience and 8 years in Futures and Forex. Graduate of University of South Wales.

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