The Forward Rate Volatility Structured Transaction (VTF) is a mechanism offered by B3 to trade in a single transaction the Futures and Options on One-Day Interbank Deposit Rate in quantities representing a delta-neutral portfolio. Therefore, the investor is exposed to the volatility of the underlying asset, thus eliminating the execution risk when trading each product in segregated order books.
The VTF is not a new contract, but rather an execution facilitator for structured transactions. Thus, there are no open interest in VTF, as trades will be automatically segregated into Futures and Options on One-Day Interbank Deposit Rate Contracts.