A sell/buyback does not require any special legal documentation while a repo generally requires a master agreement to be in place between the buyer and seller (typically the SIFMA/ICMA commissioned Global Master Repo Agreement (GMRA)). For this reason, there is an associated increase in risk compared to repo. Should the counterparty default, the lack of agreement may lessen legal standing in retrieving collateral. Any coupon payment on the underlying security during the life of the sell/buyback will generally be passed back to the buyer of the security by adjusting the cash paid at the termination of the sell/buyback. In a repo, the coupon will be passed on immediately to the seller of the security.