The failure of uncovered interest parity can be ascribed to the existence of a risk premium. The size of this risk premium may shrink to zero over sufficiently small intervals of time. In contrast, because no interest is paid on intradaily positions and interest is instead paid discretely at the...

This paper considers new options on Treasury and stock futures than expire each Wednesday and Friday. I examine the volatilities implied by these options as of the night before expiration, and compare the volatilies just before FOMC days and employment report days with the volatilities on other...