US 30 Year T-Bond Futures Historical Data. Get free historical data for US 30 Year T-Bond Futures. You'll find the closing price, open, high, low, change and %change of the US 30 Year T-Bond Futures for the selected range of dates. The data can be viewed in daily, weekly or monthly time intervals. Get free historical data for United States 10-Year Bond Yield. You'll find the closing yield, open, high, low, change and %change for the selected range of dates. The data can be viewed in daily, weekly or monthly time intervals. At the bottom of the table you'll find the data summary for the selected range of dates.