Treasury
3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp 3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp 3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp 3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp 3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp 3-MO 4.12% -2bp 6-MO 4.20% -2bp 1-YR 4.40% -5bp 2-YR 4.67% -7bp 3-YR 4.75% -7bp 5-YR 4.78% -8bp 7-YR 4.86% -8bp 10-YR 4.94% -7bp 20-YR 5.32% -7bp 30-YR 5.29% -6bp
US Treasury par yield curve · Sep 17 · Source: U.S. Treasury
Thursday, September 17, 2026
U.S. Edition
MONEY & WORLD
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Aon financing

Aon issues $13.5bn of notes to help fund USI acquisition

Money & World
The Editorial Team ·
Escalators cross the atrium of the Aon Centre at the Leadenhall Building in London.
Photo: It's No Game / Wikimedia Commons (CC BY 2.0)

Aon issued $13.5bn of senior notes across seven tranches, with maturities running from 2029 to 2056.

Six tranches totaling $11.5bn are designated as USI acquisition notes in Thursday's Form 8-K. The seventh is $2bn of notes due in 2056.

The filing puts net proceeds at about $13.40bn. Aon intends to use them for general corporate purposes, including acquisition consideration, repayment or redemption of some USI debt and transaction costs, alongside a planned term loan and other liquidity.

The deal terms have a backstop. If the acquisition fails under the filing's stated conditions, the $11.5bn of acquisition notes must be redeemed at 101 percent of principal plus accrued interest. The 2056 notes are excluded.

The document: Aon plc Form 8-K, $13.5bn senior notes, September 17, 2026.

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