The US Treasury's 30-year auction hit a high yield of 5.216% on Thursday, up from the 5.058% high in the previous auction.
The bid to cover ratio for the auction was 2.39, below the 2.44 ratio in the previous auction.
Dealers represented 53.50% of the bids, with direct bidders at 14.17% and indirect bidders at 32.33%.
For takedown, dealers took 11.51%, with direct bidders at 21.64% and indirect bidders at 66.85%.