U.S. Treasury yields fell Wednesday as a downturn in Credit Suisse once again pressured bank shares, prompting a flight to traditionally safer bonds.

The yield on the 10-year Treasury was down by nearly 16 basis points to 3.477%. The 2-year Treasury yield was trading at 3.919% after falling by just over 30 basis points. It had posted its largest three-day decline since the October 1987 stock market crash following the Silicon Valley Bank's failure last week.