Explanation

This bond is callable and trades close to par, which are key characteristics. When yields decrease sharply:

• Callable bonds exhibit negative convexity because as interest rates fall, the likelihood of the bond being called increases
• The issuer is likely to call the bond when rates fall, limiting the bond's price appreciation
• This creates a price ceiling effect where the bond price cannot rise much above the call price
• Negative convexity means the bond's duration decreases as yields fall (opposite of normal bonds)

Modified duration and effective duration would typically decrease rather than increase in this scenario due to the call feature. Positive convexity is characteristic of non-callable bonds, not callable bonds trading near par.