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11. Which of the following statement is correct about the option adjusted spread ( OAS ):
& o! t! l; f+ U" VA. OAS is Z-Spread minus the option cost.
4 ?) I) y* Z6 k mB. OAS is the value of the embedded option. ( }, B& F/ a' I( D4 ^
C. OAS is Z-spread plus the option cost. V9 |* r0 ^$ H+ E, u2 k
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4 T' x% ~- D3 v2 e1 Z: C0 ^12. The difference between Z-spread and nominal spread will most likely be the most significant for a:
`8 R2 W+ T3 I% KA. Treasury security with short maturity in a flat yield curve environment
2 c0 `& h. c1 W. t- OB. zero coupon Treasury security. " A( a! O6 C( l- L& G4 S# K( b
C. mortgage-backed security in a steep upward-sloping yield curve environment. S: x( D+ Q, ^4 h
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: _7 k" I- M( W9 M9 Q13. All else being the same, the difference between the Z-spread and the nominal spread for a non-Treasury security will be greater when:
. K# P4 ?/ n( Z4 W# Y% i9 I; u/ fA. maturity of the security is longer. $ ?! c7 `/ b; s4 o3 p g4 R! l7 e4 u
B. yield curve is flatter. + w) N/ e4 q3 F! A1 I) n5 @
C. security has a bullet maturity rather than an amortizing structure.
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! U6 Q0 j, a2 k& l14. A semiannual-pay bond is callable in five years at $106. The bond has an 8% coupon and 15 years to maturity. If the bond is currently trading at $98 today, the yield to call is closest to:
+ A9 s' _& p' @! c( P7 jA. 8.22%
3 K! ^) X2 F# R! j: D+ w9 M- zB. 8.49%. 4 ~3 P. [1 ~1 c% j& F# Y
C. 9.48%.9 i6 J) x. a3 ]3 @* m$ R k9 p+ d4 @
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15. A 10% annual coupon bond with 3 years to maturity is currently trading at $1,010. The bond is callable in one year at a call price of $1,008 and in two years at a call price of $1,005. The bond’s yield to worst most likely occurs when the bond is:5 P4 s& `6 z, I# D1 g
A. held until maturity in 3 years. + d# H% b# _! f+ p; o7 W8 N
B. called in year 1.
3 E6 x5 h& R( [9 Q% G6 KC. called in year 2.
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