The yield of 10-year and 30-year treasury bond bonds of the United States closed at about 5.31% and 5.66%, the highest level since 2002. Anatole Kaletsky, co-founder of Gavekal Research, is optimistic about 10-year and 30-year US Treasury bonds. Bianco Research founder Jim Bianco has turned to long-term US Treasury bonds, believing that their absolute returns are attractive. TLT, with a scale of approximately $47 billion, has recorded a net inflow of approximately $5.3 billion this year.