Template:M summ EUA Annex Transactions
The two major types of transaction in EUAs are Allowance Forward Transactions: an agreement now to buy (and sell) later of some Allowances at a price agreed now that is expected to reflect their price later, as that price is agreed now — and Allowance Option Transactions, at which one has the right to buy (or sell) later some emissions at a price agreed now that is expected to reflect their price later, as that price is agreed now