188 Appendix D: Formulas Used

Bonds

Reference:

Spence, Graudenz, and Lynch, Standard Securities Calculation Methods, Securities Industry Association, New York, 1973.

DIM = days between issue date and maturity date.

DSM = days between settlement date and maturity date.

DCS = days between beginning of current coupon period and settlement date.

E= number of days in coupon period where settlement occurs.

DSC = E DCS = days from settlement date to next 6–month coupon date.

N= number of semiannual coupons payable between settlement date and maturity date.

CPN = annual coupon rate (as a percentage).

YIELD = annual yield (as a percentage).

PRICE = dollar price per $100 par value.

RDV = redemption value.

For semiannual coupon with 6 months or less to maturity:

100(RDV +

CPN

)

 

 

 

 

 

 

 

 

 

DCS

 

CPN

 

2

 

 

PRICE = ⎢

 

 

 

 

 

 

 

 

 

DSM

 

 

YIELD

 

 

2

 

 

 

 

E

 

100 + (

 

 

 

)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

E

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

For semiannual coupon with more than 6 months to maturity:

 

 

 

 

 

 

RDV

 

 

 

 

 

PRICE =

 

 

 

 

 

YIELD N 1+

DSC

 

 

 

E

1+

 

 

 

 

 

200

 

 

 

 

 

CPN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

CPN

 

DCS

2

 

 

 

 

+ ⎢

 

 

 

 

 

 

 

 

 

 

DSC

 

E

K =1

YIELD

K 1+

 

 

2

 

E

 

 

1+

 

 

 

 

 

 

 

200

 

 

 

 

 

 

 

⎣⎢

 

 

 

 

⎦⎥

 

 

 

 

 

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