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A
range forward
(also called a cylinder
or tunnel)
is a costless
collar
used to hedge
a short position in an
underlier.
The name "range forward" is used because the hedge is
used in lieu of a simple
forward
hedge.
Unlike the forward hedge, which locks in a specific
price for the underlier, the range forward locks in a
price range for the underlier. In this way, the holder
participates in small moves in the underlier while being
protected from larger moves. This is illustrated with
payoff diagrams in Exhibit
1. |