is calculate by increase the yield by 1 base point, and decrease the yield by 1 base point, the apply formula of duration, or is just trade price - price after 1 base point increase of yield? Thanks.
is calculate by increase the yield by 1 base point, and decrease the yield by 1 base point, the apply formula of duration, or is just trade price - price after 1 base point increase of yield? Thanks.