Novo Nordisk shares slide about 17% in Copenhagen after weak 2026 guidance

Novo Nordisk B shares fell about 17% in early Copenhagen trading on 4 February 2026, wiping out the stock's gains for the year. The drop followed the company's guidance for a 5% to 13% fall in 2026 adjusted sales and profit. The decline was the main market reaction to the outlook.

• About 17% decline in early Copenhagen trading on 4 February 2026
• Trigger: 2026 guidance of a 5% to 13% fall in adjusted sales and operating profit
• The stock had been up for the year before the guidance