Also referred to as Indirect Trading Against. Refers to when a floor broker effectively trades opposite his customer in a pair of non-competitive transactions by buying (selling) opposite an accommodating trader to fill a customer order and by selling (buying) for his personal account opposite the same accommodating trader. The accommodating trader assists the floor broker by making it appear that the customer traded opposite him rather than opposite the floor broker. Inflation-Indexed Debt Instrument Generally a debt instrument (such as a bond or note) on which the payments are adjusted for inflation and deflation. In a typical inflation-indexed instrument, the principal amount is adjusted monthly based on an inflation index such as the Consumer Price Index.
Source: Commodity Futures Trading Commission