TMF, in particular, plays yields on the longer end of the curve with its focus on benchmark Treasury notes that exceed 20 years in duration. Traders continue to see inflation as a key driver for the capital markets these days, and bets on inflation being non-transitory have translated into an uptick for the Direxion Daily 20+ Year Treasury Bull 3X Shares (TMF). Meanwhile, TMF notched a 2% gain the last five days as yields headed downward.