Government borrowing costs hit multi-decade highs, 10s +4bp

desk brief, Tue 18 Aug 2026

Treasuries (close 2026-08-17): 2s 4.19% (+2.0bp), 10s 4.72% (+4.0bp), 30s 5.31% (+6.0bp).

Tape (close 2026-08-17): VIX 15.19, 2s10s +53bp.

Narrative: Trump Threatens Oman, Rejects Iran Truce Extension | Daybreak Europe 8/18/2026

What mattered:

Government borrowing costs hit multi-decade highs
Long-Term Debt Costs Soar to Highest in Decades as Bonds Slump
Bond Rout Sends Long-Term Borrowing Costs to Highest in Decades
GB: Employment Change (3M): 83K
30-year Treasury yield tops 5.33%, new 19-year high, on inflation and spending concerns

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