Top Losers: The Biggest Stock Declines in North America and Why
October 15, 2026 | ATN Trade & Finance
October has already delivered several sharp single-session drops across sectors — from bankruptcies to drug trial failures to post-earnings sell-offs on margin concerns. Here are the most significant declines and the stories behind them.
Getty Images (GETY): -69% on Chapter 11 Filing
The biggest collapse of the month came from the stock photography giant. On October 12, Getty Images announced a prepackaged Chapter 11 bankruptcy and a go-private deal in which affiliates of the Getty family and Koch Equity Development committed up to $533 million in new equity — leaving existing shareholders with nothing. OTC shares fell 69% to $0.0147. The story had been unfolding all year: Getty abandoned its $3.7 billion Shutterstock merger in June after UK regulators demanded Shutterstock sell its editorial business. The failed deal cost over $100 million in fees and financing. Underlying the crisis was AI disruption — annual subscribers fell from 321,000 to roughly 241,000 — and a widening net loss of $85.8 million in Q2 on revenue of $229.1 million. The NYSE had suspended trading on September 30 after the share price fell to 12 cents.
Bank of America (BAC): -7.3% on Regulatory Settlement
The October 14 earnings miss hit BAC hard at the open. EPS of $1.08 fell short of the $1.11 estimate, weighed down by a $1.2 billion non-deductible regulatory settlement with the OCC and FinCEN. Revenue came in at $29.96 billion versus $30.58 billion expected. Underlying fundamentals — NII up 8%, average loans up 6% — were solid, but the settlement dominated the tape.
Caribou Biosciences (CRBU): -43% on Pipeline Shutdown
On October 7, Caribou Biosciences fell 43% after canceling both its allogeneic CAR-T cell therapy programs — vispa-cel (B-cell lymphoma) and CB-011 (multiple myeloma). The company cited difficulty raising capital for allogeneic CAR-T therapies, announced significant workforce reductions, and said its board was reviewing strategic alternatives including a possible sale.
TSMC (TSM): -4.1% Despite Record Earnings
Taiwan Semiconductor reported record Q3 profit on October 15 but still dropped approximately 4.1% as investors fixated on a sequential dip in gross margin. The result also dragged down the broader AI chipmaker complex, compounding Wednesday's tech-sector sell-off.
Rocket Lab (RKLB): -10% on Launch Delay
Rocket Lab fell approximately 10% in premarket trading on October 15 after the company announced a delay to the debut of its Neutron medium-lift rocket — a program key to its growth thesis.
What this means for investors: This week's losers span a wide range: structural disruption (Getty), regulatory one-off (Bank of America), biotech pipeline failure (Caribou), and sell-the-news reactions to strong results (TSMC). The TSMC reaction is particularly notable — markets are increasingly scrutinizing margin trajectories in AI-adjacent hardware names, not just headline revenue growth.
Sources:
- After Failed Shutterstock Merger and NYSE Delisting, Getty Plans Chapter 11 Bankruptcy — StockTwits/Markets
- Caribou Biosciences Stock Falls 43% — RTT News
- TSMC's Record-Breaking Quarter Somehow Triggers a 7.3% Stock Plunge and an Asian Chip Selloff — Crypto Briefing
- October 2026 Stock Losers on News, MTD — Stock Titan
- Stock Market Today (Oct. 15, 2026): Dow Edges Higher as Tech Sell-Off Pivots — TheStreet