Johnny
2024-06-26 12:56Convexity Adjustment是什么意思呢?講義上似乎沒有?
"For large parallel changes in interest rates, we make a convexity adjustment to improve the accuracy of the estimated price change. We believe that parallel shifts in the yield curve are relatively rare; therefore, duration by itself is inadequate to capture the full effect of changes in interest r
所屬:CFA Level III > Fixed-Income Portfolio Management 視頻位置 相關試題
來源: 視頻位置 相關試題
1個回答
Tom助教
2024-06-27 09:33
該回答已被題主采納
同學您好,這部分內容在教材中沒有展開講解,但在課程中做過補充說明。在傳統(tǒng)的免疫策略中,我們匹配了資產(chǎn)和負債的duration,但duration并不能解釋100%的價格變動,還有一小部分變動是因為convexity。我們可以通過匹配資產(chǎn)和負債的convexity讓免疫策略變得更加精準。如果要增加convexity,做法包括:買入putable bonds賣出callable bonds,買入barbell賣出bullet等,如果要降低convexity,則方向相反。
還有另一種思路是,我們可以通過調整convexity來獲得超額收益:在市場平穩(wěn)時,convexity沒用,此時應該買入convexity低的債券(價格更便宜);而在市場波動劇烈時,convexity有用(漲多跌少),此時應該買入convexity高的債券。
