Why the EU Carbon Market Stayed Liquid Through 2025’s Price Swings

What ESMA’s 2026 report says about trading volumes, liquidity, and market depth

ESMA’s latest carbon-markets surveillance says the EU carbon market kept functioning smoothly, with no significant issue found in integrity or transparency based on 2024 data. That matters because ESMA is not just looking at price moves. It is looking at volatility, price evolution, auctions, OTC trading, liquidity, volumes, and participant behavior.

The clearest sign of depth is the trading mix. In 2023, on-exchange trading reached 9.3 billion tCO2, while off-exchange trading reached 0.9 billion tCO2. Futures accounted for 7.6 billion tCO2 and options for 1.7 billion tCO2. That is not a thin spot market. It is a large derivatives-led compliance market.

Liquidity is also about structure, not just turnover. ESMA says secondary-market dynamics remained largely unchanged and that the market is organized to facilitate the flow of allowances from financial intermediaries to non-financial firms with compliance obligations. That is exactly why industrial buyers, utilities, and carbon-intensive manufacturers can keep trading even when prices move fast.

Volatility fell even as prices still moved materially. ESMA’s 2024 report showed historical volatility at 1.9% and intraday volatility at 1.0% in 2023, down from 3.3% and 1.5% in 2022. Lower volatility did not mean static pricing. It meant the market absorbed shocks without losing depth.

The next question is why that resilience held. The answer starts with scale. The EU ETS is large enough to attract persistent balance-sheet support and risk capital, which is what keeps liquidity alive when prices swing.

Why a 777 Billion Euro EU ETS market matters for global carbon market confidence

Scale is part of the confidence story. The Commission’s 2025 carbon-market reporting says the EU ETS had raised over €245 billion by mid-2025 and €38.8 billion in 2024 alone. That shows the market is not niche. It is a major industrial-finance channel.

The verified point is not a single headline number. The verified point is that auction revenues, compliance coverage, and derivatives turnover place EU ETS among the world’s largest regulated carbon markets. That scale supports confidence in EUA pricing and settlement.

Size matters for buyers because it improves execution. Utilities, steelmakers, refiners, cement producers, and trading desks can hedge multi-quarter exposure without dominating the tape. That usually means better pricing quality and lower execution risk.

Policy credibility matters just as much. The Commission’s 2026 allowance-cap update and MSR actions show the EU is still actively managing supply, with the Market Stability Reserve continuing to absorb surplus allowances. That makes the EU ETS look like a rules-based market, not a discretionary one.

Large markets can still be volatile. The reason this one stayed liquid is that financial intermediaries, market makers, and proprietary desks kept absorbing shocks so compliance buyers could still execute when prices repriced quickly.

How financial firms help absorb volatility in a compliance market

Financial firms act like buffer inventory in the EU ETS. ESMA says the market is structured to move allowances from financial intermediaries to non-financial compliance entities. In practice, that is the role of brokers, banks, and market makers in a commoditised carbon market.

The participant mix shows how central they are. In 2023 secondary-market trading volumes were dominated by investment firms and credit institutions at 56%, while compliance entities and other non-financials accounted for 31%. That means banks and financial firms are not peripheral. They are core liquidity providers.

The auction side shows the same pattern. ESMA reported 44 auction participants in 2023, including 14 financials and 30 non-financials, with a 202% coverage ratio. That points to sustained demand, competitive bidding, and a functioning pipeline from primary issuance to secondary hedging.

For buyers and processors, the practical effect is execution quality. Financial firms enable block trades, spread compression, and continuous two-way quotes. That matters when procurement teams need to layer allowances around budget cycles or emissions verification milestones.

Once financial intermediation is doing its job, price swings become more informative. They start to show hedging demand, basis risk, and the microstructure of EUA futures and options.

What price swings reveal about hedging, risk management, and market structure

Price movement is often a sign of active risk transfer, not dysfunction. ESMA’s 2024 report says prices fell in 2023 to an average of €83/tCO2, after reaching €100/tCO2 for the first time in February 2023, while volatility remained low overall.

The derivative mix matters for hedging strategy. Futures accounted for 7.6 billion tCO2, while options accounted for 1.7 billion tCO2. That suggests heavy reliance on forwards for compliance coverage, portfolio protection, and budget certainty, especially for utilities and industrials with quarterly emissions exposure.

ESMA did not find a major functioning issue, but it did flag that transaction reporting for simultaneous purchase-and-sale strategies could be improved. Better reporting would help identify trading strategies and make it easier to separate hedging from speculative activity.

For buyers, the lesson is practical. Price swings can signal when layered hedges, staggered buying windows, and risk limits are needed, especially when gas prices, industrial activity, and policy supply changes move EUA sentiment in the same direction.

The final layer is policy. Liquidity will keep depending on how supply, compliance demand, and market rules evolve next.

The policy signals investors and industrial buyers should watch next

The first signal is supply management. The EU confirmed the 2026 cap reduction by 27 million allowances and continued Market Stability Reserve adjustments, so supply control remains central to price formation and liquidity expectations.

The second signal is demand reshaping. In covered sectors such as cement, aluminium, fertilisers, hydrogen, and iron and steel, CBAM will gradually replace free allocation from 2026 onwards. That changes how industrial buyers plan EUA procurement and cross-border competitiveness.

For investors, the key question is whether market depth keeps absorbing regulatory change. ESMA’s latest report and the Commission’s revenue data both suggest the market is still functioning smoothly, but liquidity could tighten if compliance demand rises faster than free allocation falls.

For industrial buyers, the watchlist is straightforward: auction coverage, the pace of MSR absorption, and any sign that financial intermediaries are reducing risk appetite. Those are the variables most likely to affect forward curve steepness and quarterly hedging costs.

The core conclusion is simple. The EU carbon market stayed liquid not because prices were calm, but because rules, scale, intermediaries, and hedging infrastructure kept matching supply and demand through volatility. The next policy cycle will test that structure again.