A significant increase in bond yields occurred, reaching levels not seen in almost three years. This change followed an announcement from the Treasury Department regarding its plans to purchase government bonds. The operation's size was disclosed, with a maximum value of $6 billion.

Investor reaction to the news was notable, with yields rising after the announcement. The 10-year Treasury yield reached a particular percentage, marking its highest point since a specific previous date.

Further information about the bond buybacks and their potential impact is available, including details about the standard operation and recent changes to its size.