Created with the purpose of facilitating investors' day-to-day operations, the structured rollover transaction does not consist of a new contract but rather a mechanism that allows to trade two maturities simultaneously, thus maintaining the features of the contracts unchanged.
Typically, structured rollover transactions are carried out by investors wishing to migrate their positions to a longer maturity date due to, i.e., lack of liquidity in certain maturities. In addition, rollover transactions are also widely used by investors who wish to trade price differentials between maturities when they are seeking arbitrage between them, or even directional speculation.