Compliance carbon and physical lumber are moving in opposite directions, and October is the month that divergence became hard to ignore. European Union allowances touched €88.30 per metric ton on October 12, their highest level since January, and the Regional Greenhouse Gas Initiative set an all-time auction record on September 9. At the same time, the US Census Bureau reported housing starts falling again in September, builder sentiment sank to its lowest reading in 14 years, and trade reporting put lumber futures near a two-year low, even after Washington cut the duty rate on Canadian softwood. The cost of emitting carbon and the demand for building anything with wood are no longer moving together.
Compliance carbon: a slow climb with a policy fight underneath it
European Union Allowances for the nearest December contract traded at €88.30 per metric ton on October 12, 2026, the highest print since the end of January, according to ICE data reported by Carbon Pulse. That continues a climb through the back half of the year: EUAs averaged €82.30 in August and €85.60 in September, up from a narrower €82 to €84 range earlier in the summer. Compliance buying is part of the story, since firms had until the end of September to surrender permits covering 2025 emissions and free allocation transfers for 2026 were still incomplete as of September 24.
The bigger driver is a live fight over how the Market Stability Reserve itself works. The Council of the European Union adopted a negotiating position on September 23 that would suspend the cancellation of allowances above the reserve’s current 400 million invalidation threshold through the end of 2030, keeping those allowances in the system rather than permanently removing them, then raise the threshold itself to 800 million starting January 1, 2031. More than 3 billion allowances have been cancelled under the invalidation mechanism since it began in 2023, so a multi-year pause is a meaningful supply decision. The Council aims to conclude talks with the European Parliament by the end of 2026. Separately, Italy and the Czech Republic pushed at the October 15 and 16 European Council summit to suspend the transfer of roughly 190 million allowances into the reserve between September 2026 and August 2027, a parallel effort to loosen supply that traders have cited as a reason prices could soften from here. The Carbon Border Adjustment Mechanism, in its definitive regime since January 1, 2026, prices its certificates off EU ETS auction levels, but it still covers only cement, iron and steel, aluminum, fertilizers, electricity, and hydrogen. It does not reach wood products, and LBM readers should not assume otherwise.
North American compliance markets moved the same direction. The Regional Greenhouse Gas Initiative’s 73rd auction, held September 9, cleared at $37.65 per allowance, the highest clearing price in the program’s history, moving all 28,537,847 allowances offered on bids totaling 2.6 times the initial offering and raising $1.07 billion, the first time a single RGGI auction has cleared that mark. California and Quebec’s 48th joint cap-and-trade auction, held August 19, settled current-vintage allowances at $32.48, with both current and advance auctions fully subscribed.
Voluntary carbon: buyers are paying up for a label, not for volume
The voluntary market’s story this month is less about price and more about which credits buyers will touch at all. Carbon Pulse reported on October 14, citing data from AlliedOffsets, that issuances of credits approved under the Integrity Council for the Voluntary Carbon Market’s Core Carbon Principles rose 64 percent year over year in the first half of 2026, while issuances under methodologies the Integrity Council has rejected fell 67 percent over the same period. Combined retirements at Verra and the Gold Standard, the two largest registries, totaled about 67.4 million credits in the first half of 2026, down roughly 9.3 percent from 74.3 million a year earlier, with Verra accounting for more than 49 million of that total. Overall demand is softer. Demand for labeled supply is not.
Forest credits saw two moves that reinforce the pattern. Singapore’s National Environment Agency added Verra’s VM0010 improved forest management methodology to its International Carbon Credit Framework on October 13, the third Verra forest methodology the agency has accepted against the country’s compliance carbon tax. And in August, the Integrity Council extended Core Carbon Principles approval to version 1.3 of the American Carbon Registry’s Improved Forest Management on Non-Federal US Forestlands methodology, a label now covering more than 9 million already-issued credits. Buyers increasingly treat a recognized quality label, whether from the Integrity Council’s own process or a sovereign buyer like Singapore, as the baseline requirement for a credit to be considered at all, not a premium feature.
When the label decides the price, you need to see the label
This month’s data shows CCP-approved credits pulling away from the rest of the voluntary market while overall volume cools. CearioTrader lets you filter live carbon markets by registry, methodology, and integrity label side by side, so you can see which credits are actually moving before you commit capital.
Timber: tariff relief meets a demand slump
The US Department of Commerce closed its seventh administrative review of antidumping and countervailing duties on Canadian softwood lumber on October 14, cutting the combined rate most producers pay to 24.75 percent from 35.16 percent, with final results published in the Federal Register on October 19. A separate, long-running dispute closed the same week: a North American Free Trade Agreement binational panel affirmed Commerce’s original 2017 countervailing duty determination on October 5, ending nine years of litigation, though a parallel challenge to the original antidumping determination remains open. Neither development removes the 10 percent tariff imposed under Section 232 of the Trade Expansion Act of 1962, which still applies on top of the antidumping and countervailing rate and keeps the effective combined burden near 34.75 percent, down from roughly 45 percent before the AR7 cut but still more than double where it stood before Section 232 took effect a year ago.
That relief is arriving into a market that is not asking for more lumber right now. The Census Bureau’s September report, released October 20, put seasonally adjusted housing starts at 1,221,000 annualized units, down 5.2 percent from a revised August figure of 1,288,000 and down 7.4 percent from September 2025. The National Association of Home Builders’ confidence index fell to its lowest level in 14 years, and trade press reporting this week described CME lumber futures as approaching a two-year low. Builders are not short on lumber. They are short on reasons to build.
Cross-market read
The pattern across every market this month is the same one that has been building for several cycles: the cost of carbon compliance keeps rising through policy engineering, from the European Union’s reserve mechanics to RGGI’s increasingly thin cost containment buffer, even as the market for physical building materials softens on weak housing demand. That is not a contradiction. Carbon prices and lumber prices answer to different supply levers. The EU and the Northeast’s compliance markets are tightening supply by design, while the physical materials market is simply watching demand fall as elevated mortgage rates and affordability concerns keep builders on the sidelines. A lower softwood lumber duty rate does not translate into a healthier materials market this quarter, because the rate cut addresses a cost problem for importers at exactly the moment the volume problem has gotten worse.
The voluntary market adds a third thread, and it is not simply following the compliance markets upward. It is bifurcating, with CCP-labeled supply commanding real demand growth while unlabeled or rejected-methodology credits lose share even as overall retirement volume contracts. A buyer, developer, or specifier moving between these three markets this quarter needs three separate mental models: compliance carbon prices driven by deliberate supply tightening, voluntary carbon demand driven by quality discrimination rather than price, and physical lumber markets driven by a housing slowdown that tariff relief alone cannot fix.
What to watch next month
Four things will shape how this divergence resolves. First, whether the European Council and Parliament move toward concluding their Market Stability Reserve trilogue, targeted for the end of 2026, and whether Italy and the Czech Republic’s push to suspend reserve intake gains traction against the Council’s narrower proposal. Second, the European Union and United Kingdom’s planned November 20 summit on linking their carbon markets, which could add a new demand channel for EUAs if talks progress. Third, the Census Bureau’s October housing starts report, due in mid-November, which will show whether September’s decline was a one-month dip or the start of a longer slide. Fourth, full-year 2026 retirement and issuance data from Verra, Gold Standard, and Core Carbon Principles trackers, due in early 2027, which will show whether the bifurcation between labeled and unlabeled credits held through the back half of the year.
We’ll be back with the November Barometer in the third week of the month.