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bzs728 · 2025年04月23日

Bfloating怎么判断

NO.PZ2024061801000098

问题如下:

Consider the following information:

$1 million notional value, semiannual, 18-month maturity.

Spot SOFR rates: 6 months, 2.6%; 12 months, 2.65%; 18 months, 2.75%.

The fixed rate is 2.8%, with semiannual payments.

Which of the following amounts is closest to the value of the swap to the floating rate payer, assuming that it is currently the floating-rate reset date?

选项:

A.

$1,026.

B.

$1,026.

C.

$12,416.

D.

$12,416.

解释:

B fixed = ($14,000 / 1.0260.5) + ($14,000 / 1.02651) + [($1,000,000 + $14,000) /1.02751.5] = $13,821 + $13,639 + $973,566 = $1,001,026

Note that we are at a (semiannual) reset date, so the floating-rate portion has a value equal to the notional amount.

Vswap = (Bfixed Bfloating) = $1,001,026 $1,000,000 = $1,026

为什么 “we are at a (semiannual) reset date, so the floating-rate portion has a value equal to the notional amount."? present value of floating要怎么计算呢?

1 个答案

李坏_品职助教 · 2025年04月23日

嗨,从没放弃的小努力你好:


如果是在期初或者在利率重置日(reset date, 同时也是现金流发生的日期),那么浮动利率未来所有现金流折现求和,结果等于面值(notional)


因为浮动利率未来现金流折现的时候,分子的利率是Libor,分母也是对应时刻的Libor,既然分子利率=分母利率,折现的时候可以恰好约分了,那么折现之后就等于面值了。

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