Persistently high yields would make borrowing more expensive and pressure US stocks, housing and the government. Treasury tripled its bond buyback to $6 billion, yet the 10-year yield climbed to 4.85%, its highest since November 2023, after last month's doubled $4 billion buyback had cut the 30-year yield by nearly 10 basis points. Oil above $100, rising US debt and inflation fears are pushing yields higher. x.comÂ