European energy markets have entered a new era.
In April 2026, Intercontinental Exchange (ICE) significantly expanded trading hours for its European natural gas and power contracts from a traditional 10-hour window to a 21-hour trading day.
This is more than a technical adjustment. It represents a structural shift in how energy markets operate, bringing them closer to a more global, near continuous market.
The trading landscape
Natural gas and power in Europe are traded mainly through two exchanges: EEX and ICE, as well as over the counter (OTC) via brokers. Liquidity varies by product maturity and venue. Broadly, long term positions are mainly traded OTC, while short term positions are predominantly executed on exchanges.
As exchanges operate within defined opening hours, market liquidity is concentrated during these windows, reinforced by price formation mechanisms. In a continuous market, liquidity is linked to how exchanges determine daily reference prices. Most traders try to beat those indexes, particularly the VWAP (Volume‑Weighted Average Price), which reflects all transactions over the day, weighted by volume, and the end-of-day index, focusing on trades closed between 5:00pm and 5:30pm.
Following ICE’s implementation, key European benchmarks now trade almost continuously throughout the day, with prices increasingly influenced by international flows, global participants and multiple time zones.
A continuous European energy ecosystem
The move from a 10-hour to a 21-hour trading window reflects a deeper transformation already underway: Europe is moving from a regional market to a global system.
European gas markets, led by the Dutch TTF benchmark, have evolved into a global pricing hub, influenced as much by LNG cargo flows in Asia and the US as by local supply and demand.
A restricted daytime trading window created an artificial disconnect: US markets moved after Europe closed; Asian demand shifted before Europe opened; and critical information accumulated during “dark hours”.
Extending trading effectively removes that disconnect, allowing Europe to operate as part of a continuous global pricing loop.
What this signals for the future
The move to 21-hour trading is a step toward something bigger.
This change is likely to strengthen European market liquidity over the long term, particularly through increased participation from US and Asian traders, however the evolution of liquidity throughout the day will need to be monitored to assess the actual impact for clients.
In the short term, liquidity is likely to remain concentrated around existing trading hours. Traders will continue to observe the full market across OTC, ICE and EEX, and trading habits are likely to remain aligned with current price index formation mechanisms.
Until now, when a major incident occurred outside office hours, traders often had no choice but to wait for markets to reopen and liquidity to return, forcing them to react later and absorb the price impact. Going forward, extended or near continuous trading hours are likely to change this behaviour, allowing participants to take positions much quicker after an event.
As a result, the market may increasingly expect faster reactions and require more continuous, 24/7 trading and operational services to manage situations effectively.
While ICE has moved first, similar developments could follow across other European venues. EEX may consider comparable adjustments as cross-regional participation, algorithmic trading and global hedging strategies continue to grow.
For decades, European energy trading operated within a predictable rhythm: a 10-hour window anchored to European business hours. That rhythm has gone.
Now, the market is moving toward a more interconnected and continuously operating European energy ecosystem.
With ICE extending trading for European gas and power contracts, the market has crossed a critical threshold; one that signals not just longer hours, but a fundamental redefinition of how energy markets function.
Considerations for energy traders
A 21-hour market requires a rethink of trading operations. Staffing models might need to change, with an adoption of shift-based coverage or global desks. Risk management will require continuous monitoring, rather than an end-of-day review, and there will be an increased reliance on automation and algotrading.
Indeed, many firms may need to adopt “follow-the-sun” trading models or outsource overnight coverage.
Key takeaways
- The move to a 21-hour trading window on ICE is a structural shift toward near continuous European energy trading. A market that previously shut down at 6pm now runs almost around the clock
- It opens the door for US and Asian trading firms to participate more actively in European energy markets
- Market participants need more robust automation, systems and operational coverage to handle the longer trading day
Energy One: Your partner for continuous global trading
To find out how Energy One can support your business following this structural change, please get in touch.
