EU Carbon Rebounds Toward EUR 80 as US-Iran Peace Deal Reverses a Week-Old Slide

EU Carbon Rebounds Toward EUR 80 as US-Iran Peace Deal Reverses a Week-Old Slide The Dec 26 EUA contract jumped about 3% to EUR 79.68/t on Monday (2026-06-15) after the US-Iran agreement, with analysts seeing room to clear EUR 80 again. Europe's benchmark Dec 26 EU Allowance contract climbed to an almost two-week high on Monday (2026-06-15), last trading at EUR 79.68/t on ICE Endex, around 3% above the previous Friday (2026-06-12)'s settlement of EUR 77.17/t, after the announcement of a US-Iran peace deal.⁷ The move marked a sharp turn for a contract geopolitics had been pushing in both directions. Only a week earlier, on Monday (2026-06-08), the same allowance slumped to a two-week low.^6,7 That earlier drop came as Middle East tensions rose and a full primary auction schedule weighed on the market, leaving the Dec 26 EUA trading EUR 0.16 lower in early dealing on 2026-06-08.⁶ By the following Monday (2026-06-15) the peace announcement had done the work that auction supply undid a week before.⁷ Analysts told Montel they saw room for EUAs to breach EUR 80/t again within days of the deal.⁷ By midday on Friday (2026-06-19) the allowance was trading near EUR 79, still shy of that mark.⁷ It has hovered just below EUR 80 rather than clearing it cleanly.⁷ The rally capped weeks of whipsaw tied to the conflict. On 2026-05-20, European gas firmed after the US extended a two-week ceasefire with Iran while keeping a blockade on Iranian ports until a deal could be reached.¹ Carbon recovered that same session after Washington rejected an earlier Iranian proposal, and UK Allowances jumped to a three-month high.⁴ Behind the volatility sat a genuine supply scare. Gas and LNG prices had soared in May on fears of disruption to flows through Hormuz, with around 25% of Europe's total gas supply arriving as LNG, according to Chris Wheaton, oil and gas analyst at Stifel.⁵ ICE Brent crude front-month climbed about 3% to a two-week high on 2026-05-18 on the back of the same standoff.³ A durable peace points European energy lower. Easing the supply premium softens gas, and cheaper gas weakens the coal-to-gas switching that pulls emissions and EUA demand higher.⁵ ICE Endex TTF front-month traded near EUR 42 on Friday (2026-06-19), well below May's stressed levels.⁵ On that reading, carbon's rebound looks driven more by improved risk appetite than by tighter emissions fundamentals. There is also an unresolved policy thread. The conflict had been expected to slow Brussels' carbon-market overhaul, with analysts telling Montel on 2026-05-21 that the EU's plan to agree ETS reforms in the first quarter of 2027 looked "extremely challenging."² A settlement removes one source of delay, though nothing yet confirms the reform calendar has moved.² The near-term test is whether the Dec 26 contract can hold above EUR 79 and clear EUR 80, against an auction calendar that dragged it lower earlier in June.^7,6 The bigger risk sits with the deal itself. The same US that announced peace had been blockading Iranian ports only days earlier, and any relapse would put the geopolitical premium straight back into both gas and carbon.¹