I thank you…
Yes… I was referring to callable bonds.
Eh…to graph a high coupon callable bond at lower current market yields, the portion of the price/ yield relationsship between the market yield and the coupon rate (on the right end horizontal side of the graph) should be almost parallel higher on the vertical prize axe.
The reasoning is that a bond paying a hight coupon whereas markets, the investors, demanding a lower risk rate should trade at a premium. So you can see visually on the graph that there are less sensitive to interest rates changes.
May you enter into it?