HP 12C, Руководство пользователя

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258 Appendix E: Formulas Used
File name: HP 12c Pt Converted_user's guide_English_HDP0F123E02_080207 Page: 276 of 281
Printed Date: { 2007/8/2Dimension: 14.8 cm x 21 cm
Bonds
Reference:
Jan Mayle, TIPS Inc.,
Standard Securities Calculation Methods , Volume 1, Third
Edition, Securities Industry Association Inc., New York, 1993.
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:
⎥⎦
⎤
⎢⎣
⎡
× −
⎥
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎢
⎣
⎡
× +
+
=
2
)
2
( 100
)
2
( 100
CPN
E
DCS
YIELD
E
DSM
CPN
RDV
PRICE
For semiannual coupon with more than 6 months to maturity:
⎥⎦
⎤
⎢⎣
⎡
× −
⎥
⎥
⎥
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎢
⎢
⎢
⎣
⎡
⎟
⎠
⎞
⎜
⎝
⎛ +
+
⎥
⎥
⎥
⎥
⎥
⎦
⎤
⎢
⎢
⎢
⎢
⎢
⎣
⎡
⎟
⎠
⎞
⎜
⎝
⎛ +
=
∑
=
+ −
+ −
E
DCS CPN
YIELD
CPN
YIELD
RDV
PRICE
N
K
E
DSC
K
E
DSC
N
2
200
1
2
200
1
1
1
1