Treasury yields surged Monday morning, led by short-term rates, as traders reacted to hotter-than- expected inflation data last week.

The two-year rate went up more than 10 basis points to its highest level in seven years. The 10-year Treasury yield rose, last trading at about 3.1762%, with the two edging closer to an Inversion, which can signal a recession. A basis point is the difference between the yield and the price.

TICKER COMPANY YIELD CHANGE %CHANGE
U.S. 3 Month Treasury1.3830.020
U.S. 1 Year Treasury2.5750.0680
U.S. 2 Year Treasury3.1930.1440
U.S. 5 Year Treasury3.3550.1020
U.S. 10 Year Treasury3.2210.0640
U.S. 30 Year Treasury3.2480.050

The yield curve has flattened because of short-term rates moving more in the last few days.

The Federal Reserve is expected to announce a half-point rate hike on Wednesday. The Fed has raised rates twice this year, including a 50-basis-point increase in May.

The Bureau of Labor Statistics reported Friday that the US consumer price index rose by 8.6% in May on a year-over-year basis. The economists were expecting a gain of 8%. The so-called coreCPI, which excludes volatile food and energy prices, increased by six percent.

The University of Michigan consumer sentiment reading fell to a record low, which may have accelerated the selling of bonds at the end of the week.

There are no data releases on Monday.

CNBC's Jesse Pound and SAM MEREDITH REPORTED.