Get historical data for the CBOE Interest Rate 10 Year T No (^TNX) on Yahoo Finance. View and download daily, weekly or monthly data to help your investment decisions. 10 Year Treasury Rate - 54 Year Historical Chart. Interactive chart showing the daily 10 year treasury yield back to 1962. The 10 year treasury is the benchmark used to decide mortgage rates across the U.S. and is the most liquid and widely traded bond in the world.