Novo Nordisk (NOVO_B) Trading Hours & Best Sessions

NOVO_B operates on a single Regular session: 07:00 to 17:00 UTC, Monday through Friday, on Nasdaq Copenhagen. There is no pre-market or after-hours trading available through the primary listing. For traders in New York, that translates to 03:00–13:00 ET — meaning the entire session closes before the U.S. afternoon. London-based participants trade from 08:00–18:00 BST (during summer), while traders in Singapore see the window run 15:00–01:00 SGT. The exchange follows Danish public holidays, which differ from U.S. and UK calendars — a detail that caught some algorithmic strategies off-guard during the April 2024 Danish holiday schedule when volumes dropped sharply mid-week.

Peak liquidity for NOVO_B concentrates between 07:00 and 08:30 UTC, when Copenhagen opens alongside Frankfurt and other major European exchanges. Order books fill rapidly during this overlap, and bid-ask spreads typically compress to their tightest levels. A secondary liquidity spike occurs between 14:00 and 15:00 UTC, coinciding with European traders positioning ahead of the U.S. market open at 14:30 UTC — particularly relevant given Novo Nordisk's dual listing on the NYSE as NVO, which creates cross-market arbitrage flow. The mid-session window, roughly 10:00–13:00 UTC, tends to see reduced volume and wider spreads, making it a less favorable period for large orders. Earnings releases and FDA-related announcements — Novo Nordisk issued several in 2023 tied to semaglutide approvals — can override these patterns entirely, with volatility spiking regardless of session timing.

Spreads on NOVO_B follow a predictable intraday curve. At the 07:00 UTC open, spreads are briefly elevated as market makers calibrate to overnight news — this gap typically closes within 5–10 minutes as competing liquidity enters. From 07:10 to approximately 09:30 UTC, spreads reach their daily tightest, often as low as 0.01–0.02 DKK on the primary market. The mid-session lull (10:00–13:00 UTC) sees spreads widen modestly, sometimes doubling, as institutional flow slows. The final 30 minutes before the 17:00 UTC close can also see spread expansion as market makers reduce risk exposure. Pulsar Terminal displays real-time spread data directly on the MT5 chart, making it straightforward to identify when NOVO_B spreads widen outside the optimal early-session window before placing an order.