The CXF Price Index tracks CarbonXFuture's indicative assessments for waste-oil carbon credits (CXF US Gulf, CXF Re-refining) alongside major voluntary registry benchmarks. Marks are set by the desk, not exchange-traded prices — see the methodology note below.
Methodology. CXF marks are indicative assessments set by the CarbonXFuture desk based on bids, offers and completed desk transactions in waste-oil carbon credits, cross-checked against public registry benchmark levels. They are published for information only: they are not exchange-traded settlement prices, not an offer to buy or sell, and not financial advice. Registry benchmark levels (Verra, Gold Standard, ACR/CAR, Plan Vivo) are desk observations of the broader voluntary market. History accrues weekly from the date each mark is first published; revisions are not made retroactively.