Investors and traders aggressively sold off the 30-year Treasury bond Wednesday morning, sending its yield up by as much as 8.3 basis points to an intraday high of 5.046%. Strategists said long-run factors like the supply of Treasurys and stubborn inflation were playing important roles in Wednesday’s selloff. The last time the 30-year rate ended the New York session above 5% was last Friday. Meanwhile, the 10-year rate also jumped around 5 basis points to around 4.89% as the selloff took hold in securities starting with the 3-year note.