Treasury auction calendar for June 2026: 10-year and 30-year reopening dates
June 2026 brings a 10-year reopening on June 10, a 30-year reopening on June 11, and a 20-year reopening on June 16. Traders search this window because reopening months show whether duration demand can stay stable after the heavier signaling of May refunding week.
scheduled events in this month
3-year Treasury note auction
Announcement date: June 4, 2026.
Auction date: June 9, 2026.
Settlement date: June 15, 2026.
Treasury's official tentative auction calendar lists the June 2026 3-year note announcement on June 4, auction on June 9, and settlement on June 15.
10-year Treasury note reopening auction
Announcement date: June 4, 2026.
Auction date: June 10, 2026.
Settlement date: June 15, 2026.
Treasury's official tentative auction calendar lists a June 2026 10-year reopening announced June 4, auctioned June 10, and settled June 15.
30-year Treasury bond reopening auction
Announcement date: June 4, 2026.
Auction date: June 11, 2026.
Settlement date: June 15, 2026.
Treasury's official tentative auction calendar lists a June 2026 30-year reopening announced June 4, auctioned June 11, and settled June 15.
20-year Treasury bond reopening auction
Announcement date: June 11, 2026.
Auction date: June 16, 2026.
Settlement date: June 30, 2026.
Treasury's official tentative auction calendar lists a June 2026 20-year reopening announced June 11, auctioned June 16, and settled June 30.
Why reopenings still matter
Reopenings matter because they test demand for existing duration exposure rather than a brand-new issue. That can reveal whether the market still wants the long end once the flash of refunding week is gone.
For traders, that makes June useful as a confirmation month. If auctions go poorly here, the problem is harder to dismiss as one-off positioning noise.
What the cross-asset crowd is watching
A weak June duration auction can leak into TLT, pressure the rate-sensitive parts of SPY and QQQ, and change the tone in USDJPY through the U.S. yield channel. A clean auction can do the opposite and calm the term-premium story.
That is why these dates are not only for bond desks. They matter anywhere duration is part of the regime picture.