5 U.S. Stocks That Have Been Cut in Half in 2025 — and Could Rebound in September

The U.S. stock market has held firm through most of 2025, with major indexes pushing higher. But not every stock has shared in the gains. In fact, 19 companies with market caps above $1 billion have seen their share prices slashed by 50% or more this year.

Big declines often reflect real challenges, but sometimes investor pessimism overshoots reality. Here are five beaten-down stocks — C3.ai (NYSE: AI), The Trade Desk (NASDAQ: TTD), Freshpet (NASDAQ: FRPT), Six Flags Entertainment (NYSE: FUN), and Sweetgreen (NYSE: SG) — that may have room to bounce back this September.

1. C3.ai (AI) – Down 51%

Artificial intelligence is booming, but C3.ai hasn’t been able to ride the wave. The enterprise AI software provider, best known for its early energy sector wins, has struggled to expand into other industries.

• Revenue for the July fiscal quarter is projected at $70.2M–$70.4M, marking a rare year-over-year decline.
• Net losses have continued to widen for four straight years.
• Leadership uncertainty looms, with the company searching for a new CEO.

Despite the challenges, the stock has already priced in much of the bad news. With expectations set low ahead of earnings, even modest improvements in strategy or communication could spark a rebound.

2. The Trade Desk (TTD) – Down 53%

Perhaps the biggest surprise on this list, The Trade Desk has long been a Wall Street favorite thanks to its disruptive role in digital advertising. But 2025 has been a wake-up call.

• The company delivered its first-ever guidance miss since going public.
• A single earnings update this summer sent shares crashing 39% in one day, its worst decline in nearly a decade.
• Growth is slowing: Q2 revenue rose 19% YoY, its weakest pace in five years, with Q3 guidance calling for just 14% growth.

Still, The Trade Desk remains a market share leader in programmatic advertising. At 26x forward earnings, the stock looks far cheaper than in years past, making it attractive for long-term investors.

3. Freshpet (FRPT) – Down 62%

The pandemic pet boom should have been a golden era for companies like Freshpet, which sells premium refrigerated pet food at major retailers. But 2025 hasn’t been kind to the sector.

• Despite the slump, Freshpet still reports double-digit sales growth.
• Recent earnings were a bright spot: profits came in at 2x analyst expectations.
• Valuation remains steep at 85x trailing earnings, though forward estimates drop the multiple to a more manageable 28x.

If execution improves and margins stabilize, Freshpet could claw back some of its losses as pet ownership trends remain strong.

4. Six Flags Entertainment (FUN) – Down 53%

Six Flags merged with Cedar Fair last year in a bid to combine operational expertise with popular brands and attractions. The integration, however, hasn’t delivered the magic investors expected.

• The theme park operator has pared back some operations and faced lackluster summer attendance.
• Wall Street expects slight revenue and profit declines for Q3 2025.
• Seasonal business means investors may need to wait until summer 2026 for a full recovery.

Still, with profitability and growth forecasted to return in 2026, Six Flags could offer patient investors a chance to get in while the stock is heavily discounted.

5. Sweetgreen (SG) – Down 72%

Sweetgreen was supposed to benefit from workers returning to offices, driving a surge in lunch sales. Instead, the premium salad chain has had one of its toughest years yet.

• Same-store sales dropped 7.6%, with traffic down 10% in the latest quarter.
• Competitive pricing pressure is hurting margins.
• Shares are now trading in the single digits after a steep decline.

But there are green shoots: Sweetgreen recently launched a loyalty program and reported encouraging signs from its summer menu rollout. Even a modest recovery could lift the stock sharply given how far it has fallen.

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