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The London Metal Exchanges publishes two types of open interest reports. Exchange open interest (EOI) and market open interest (MOI).
Both EOI and MOI are reported in lots by contract, by prompt and in the case of options and TAPOs, by strike and by call or put.
Exchange open interest
EOI shows total number of all clearing member “open” positions - i.e. non-closed out contracts - expressed in lots, per metal.
Market open interest
Published daily, reflecting positions held at close of business two days prior.
Market Open Interest (MOI) shows the total number of open member and market participant long positions that have not yet settled, expressed in lots per metal.
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