岳同學(xué)
2020-10-15 16:39In a convertible bond arbitrage strategy, the manager strives to extract “cheap” implied volatility by buying the relatively undervalued convertible bond and taking a short position in the relatively overvalued common stock. 請(qǐng)問(wèn)為什麼 CB arbitrage strategies 可以strives to extract “cheap” implied volatility ?
所屬:CFA Level III > Alternative Investments for Portfolio Management 視頻位置 相關(guān)試題
來(lái)源: 視頻位置 相關(guān)試題
1個(gè)回答
Chris Lan助教
2020-10-15 17:52
該回答已被題主采納
同學(xué)你好
因?yàn)閏onvertable bond相當(dāng)于pure bond+ call stock option。
而期權(quán)是有波動(dòng)的。可轉(zhuǎn)債套利是做多可轉(zhuǎn)債,因此也相當(dāng)long embedded option。所以也相當(dāng)于long implied volitility。
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追問(wèn)
為什麼是 IV 會(huì) Cheap? ?
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追答
同學(xué)你好
我在原版書上找到的解釋如下:
Because the equity option value is embedded within such thinly-traded, complex securities, the embedded options within convertibles tend to trade at relatively low implied volatility levels compared to the historical volatility level of the underlying equity.
大體意思是,embedded call option是嵌入在交易較少、結(jié)構(gòu)復(fù)雜的證券中,與標(biāo)的股票的歷史波動(dòng)水平相比,可轉(zhuǎn)換證券中的嵌入期權(quán)往往以相對(duì)較低的隱含波動(dòng)率水平進(jìn)行交易。他的大概意思是說(shuō)嵌入在可轉(zhuǎn)債中的期權(quán)中的波動(dòng),由于可轉(zhuǎn)債本身的交易就少,所以定價(jià)存在過(guò)時(shí)價(jià)格問(wèn)題,因此就低估了波動(dòng)。我是這么理解的。
