Target Redemption Forwards and TARNs

A regular forward contract locks in one exchange rate for one future date. A target redemption forward (TARF), sometimes called a TARN in the broader family of "target redemption notes," instead strings together a whole series of forward settlements — often monthly — where the client typically receives a favorable rate compared to the plain market forward on each settlement, in exchange for giving up the contract entirely once cumulative gains hit a pre-agreed target.

Here is the trade-off that makes these products notorious: if the currency moves in the client's favor, gains accumulate settlement by settlement until the target is reached, at which point the whole structure knocks out early — capping how much the client can ever make, no matter how far the currency moves afterward. But if the currency moves against the client, there is often no equivalent early exit; the client can be obligated to keep settling losing forwards, sometimes at double the notional on the losing side, for the full original term. The payoff is asymmetric by design: capped, early-terminating upside paired with open-ended, uncapped downside.

These structures became widely known after corporates and exporters who used them to hedge routine FX exposure — expecting a modestly better rate than a plain forward — instead accumulated large realized losses when currencies moved sharply against them, since the "cheap" improved rate was compensation for exactly that tail risk, priced into the structure from the start.