答案里的4.6%啥意思啊？

NO.PZ2020033002000062 问题如下 A six-yeC on a AAA-rateissuer is offere100with semiannupayments assuming no couterparty risk. The annualizeLIBOR rate paievery six months is 4.8% for all maturities.If the yielon a six-yeannucoupon bonof this issuer is 7%, is there any arbitrage opportunity? If yes, how muis the return of the arbitrage strategy? A.No, there is no arbitrage opportunity. B.Yes, buy the bonanthe C with a risk-free gain of 2.2%. C.Yes, buy the bonanthe C with a risk-free gain of 1.2%. Yes, short the bonansell C protection with a risk-free gain of 1.2%. C is correct.考点C解析Because LIBOR is flat, the fixecoupon yielis also 4.8%, creating a spreof 700−480=220bp700-480=220bp700−480=220on the bon Going long the bonanshort cret via buying the C yiel annuprofit of 220−100=120bp220-100=120bp220−100=120bp. 能看懂一直到，我买债券是能赚2.2%（risk premium），然后这个2.2里面有1通过C转移出去了。所以是应该考虑，我还剩1.2%损失的风险，还是应该考虑我还能赚1.2%？知道C的定价是通过无套利原理来定价的，但是没有理解到，题目这种情况是怎么个套利法？

NO.PZ2020033002000062 问题如下 A six-yeC on a AAA-rateissuer is offere100with semiannupayments assuming no couterparty risk. The annualizeLIBOR rate paievery six months is 4.8% for all maturities.If the yielon a six-yeannucoupon bonof this issuer is 7%, is there any arbitrage opportunity? If yes, how muis the return of the arbitrage strategy? A.No, there is no arbitrage opportunity. B.Yes, buy the bonanthe C with a risk-free gain of 2.2%. C.Yes, buy the bonanthe C with a risk-free gain of 1.2%. Yes, short the bonansell C protection with a risk-free gain of 1.2%. C is correct.考点C解析Because LIBOR is flat, the fixecoupon yielis also 4.8%, creating a spreof 700−480=220bp700-480=220bp700−480=220on the bon Going long the bonanshort cret via buying the C yiel annuprofit of 220−100=120bp220-100=120bp220−100=120bp. 为什么买C是SHORT CRET,谢谢~~

NO.PZ2020033002000062问题如下 A six-yeC on a AAA-rateissuer is offere100with semiannupayments assuming no couterparty risk. The annualizeLIBOR rate paievery six months is 4.8% for all maturities.If the yielon a six-yeannucoupon bonof this issuer is 7%, is there any arbitrage opportunity? If yes, how muis the return of the arbitrage strategy? A.No, there is no arbitrage opportunity.B.Yes, buy the bonanthe C with a risk-free gain of 2.2%. C.Yes, buy the bonanthe C with a risk-free gain of 1.2%. Yes, short the bonansell C protection with a risk-free gain of 1.2%. C is correct.考点C解析Because LIBOR is flat, the fixecoupon yielis also 4.8%, creating a spreof 700−480=220bp700-480=220bp700−480=220on the bon Going long the bonanshort cret via buying the C yiel annuprofit of 220−100=120bp220-100=120bp220−100=120bp. 怎么确定什么时候调整利率？复利还是单利

NO.PZ2020033002000062问题如下 A six-yeC on a AAA-rateissuer is offere100with semiannupayments assuming no couterparty risk. The annualizeLIBOR rate paievery six months is 4.8% for all maturities.If the yielon a six-yeannucoupon bonof this issuer is 7%, is there any arbitrage opportunity? If yes, how muis the return of the arbitrage strategy? A.No, there is no arbitrage opportunity. B.Yes, buy the bonanthe C with a risk-free gain of 2.2%. C.Yes, buy the bonanthe C with a risk-free gain of 1.2%. Yes, short the bonansell C protection with a risk-free gain of 1.2%. C is correct.考点C解析Because LIBOR is flat, the fixecoupon yielis also 4.6%, creating a spreof 700−480=220bp700-480=220bp700−480=220on the bon Going long the bonanshort cret via buying the C yiel annuprofit of 220−100=120bp220-100=120bp220−100=120bp. 可否将这题重新讲一遍，不太懂

NO.PZ2020033002000062 您好，C的premium是半年一付，不用把所有的coupon rate 和 Libor调整到半年吗？