Line chart showing the change in two-year Treasury note yields daily from March 13, 2003, to March 13, 2023, in basis points. From 2003 to 2008 the daily change fluctuated between -30 and 30 bps. The 2008 recession caused numbers to go as high as 50 and as low as -50, before going back to the prior fluctuations. On March 13, 2023, yields fell by 57bp, the largest fall in many years.