First off - it is not a 10Y T-bill. T-bills extend to 52 weeks. From that point through 10Y are "notes" and everything longer are bonds.
Second anyone involved professionally in the markets understands the duration (not maturity) of bonds and how coupon rate and market interest rate will effect the price of said bond. [those interested can google terms like 'modified duration']. So there is absolutely no shock that the price of 10yr paper with a 50bp coupon would be near 80 in the current rate environment.
First off - it is not a 10Y T-bill. T-bills extend to 52 weeks. From that point through 10Y are "notes" and everything longer are bonds.
Second anyone involved professionally in the markets understands the duration (not maturity) of bonds and how coupon rate and market interest rate will effect the price of said bond. [those interested can google terms like 'modified duration']. So there is absolutely no shock that the price of 10yr paper with a 50bp coupon would be near 80 in the current rate environment.