On September 5, 2017 you buy two US Treasury Notes: you buy $5,000,000 in par value of the 1.3750% 9/30/2023 @ 97-19+ and buy $5,000,000 in par value of the 2.000% 11/15/2026 @ 99-19.
On October 3, 2017 you mark the values of each of your Notes using the now current market prices of 96-6 for the 1.3750% 9/30/2023 and 97-16 for the 2.000% 11/15/2026.
What total rate of return did you earn on your investment in this 2-Note portfolio over this holding period?