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Quant版 - 问两道pricing的题
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话题: price话题: share话题: payoff话题: s0话题: stock
进入Quant版参与讨论
1 (共1页)
b***n
发帖数: 6
1
1. Price a derivative with payoff 1/S(T).
2. Up and out put, with barrier H = 100, striked at 100. Current stock price
50, no interest rate. what is the price?
Thanks!
s********4
发帖数: 38
2
2. up and out, stock price到了100就没有payoff了,那这个put不是worthless么?
我的理解对么
b***n
发帖数: 6
3
如果stock price没到100的话,payoff就不是0啊

【在 s********4 的大作中提到】
: 2. up and out, stock price到了100就没有payoff了,那这个put不是worthless么?
: 我的理解对么

b*****d
发帖数: 7166
4
第一个stock价格要假设geometric Brownian motion或是其他分布吧,否则没法做。
借贴问一下,怎么搞到面试啊,我找到猎头一问visa基本就没信了。内推吗?
要是在公司网站上自己投吗?
b***n
发帖数: 6
5
嗯对啊 应该假设GBM的 然后怎么解呢
觉得从学校的career center投简历更有效吧。

【在 b*****d 的大作中提到】
: 第一个stock价格要假设geometric Brownian motion或是其他分布吧,否则没法做。
: 借贴问一下,怎么搞到面试啊,我找到猎头一问visa基本就没信了。内推吗?
: 要是在公司网站上自己投吗?

m*****n
发帖数: 3575
6
1st answer
spend 1 dollar to buy 1/S0 share of stock, and it will be worth of 1/St
Price = 1/S0
p******i
发帖数: 1358
7
it becomes ST/S0 isn't it?

【在 m*****n 的大作中提到】
: 1st answer
: spend 1 dollar to buy 1/S0 share of stock, and it will be worth of 1/St
: Price = 1/S0

b***n
发帖数: 6
8
1. Price a derivative with payoff 1/S(T).
2. Up and out put, with barrier H = 100, striked at 100. Current stock price
50, no interest rate. what is the price?
Thanks!
s********4
发帖数: 38
9
2. up and out, stock price到了100就没有payoff了,那这个put不是worthless么?
我的理解对么
b***n
发帖数: 6
10
如果stock price没到100的话,payoff就不是0啊

【在 s********4 的大作中提到】
: 2. up and out, stock price到了100就没有payoff了,那这个put不是worthless么?
: 我的理解对么

相关主题
GBM的FPT很straightforward么?一个关于lognormal的简单问题
[合集] 说两道题(probability & options)问几个finance的问题,好像有点难
【Finance】dynamic/static replicating portfolio问两个GS面试题
进入Quant版参与讨论
b*****d
发帖数: 7166
11
第一个stock价格要假设geometric Brownian motion或是其他分布吧,否则没法做。
借贴问一下,怎么搞到面试啊,我找到猎头一问visa基本就没信了。内推吗?
要是在公司网站上自己投吗?
b***n
发帖数: 6
12
嗯对啊 应该假设GBM的 然后怎么解呢
觉得从学校的career center投简历更有效吧。

【在 b*****d 的大作中提到】
: 第一个stock价格要假设geometric Brownian motion或是其他分布吧,否则没法做。
: 借贴问一下,怎么搞到面试啊,我找到猎头一问visa基本就没信了。内推吗?
: 要是在公司网站上自己投吗?

m*****n
发帖数: 3575
13
1st answer
spend 1 dollar to buy 1/S0 share of stock, and it will be worth of 1/St
Price = 1/S0
p******i
发帖数: 1358
14
it becomes ST/S0 isn't it?

【在 m*****n 的大作中提到】
: 1st answer
: spend 1 dollar to buy 1/S0 share of stock, and it will be worth of 1/St
: Price = 1/S0

m*****n
发帖数: 3575
15
Let us change the currency
the dollar as underlying and the share as currency
at time T: $1=1/S(T) share
at time 0: $1=1/S(0) share
at time 0: $exp(-r*T)=exp(-r*T)/S(0) share
since $exp(-r*T) at time 0 is equivalent to $1 at time T
exp(-r*T)/S(0) share is equivalent to 1/S(T) share at time T
the initial value of payoff 1/S(T) share is exp(-r*T)/S(0) share
I know this is not satisfactory to someone who needs to know the initial
value of the payoff of 1/S(T) dollar. But I just figured out this yet.
s*j
发帖数: 7
16

>>>> this is not correct. The number of share should not change.

【在 m*****n 的大作中提到】
: Let us change the currency
: the dollar as underlying and the share as currency
: at time T: $1=1/S(T) share
: at time 0: $1=1/S(0) share
: at time 0: $exp(-r*T)=exp(-r*T)/S(0) share
: since $exp(-r*T) at time 0 is equivalent to $1 at time T
: exp(-r*T)/S(0) share is equivalent to 1/S(T) share at time T
: the initial value of payoff 1/S(T) share is exp(-r*T)/S(0) share
: I know this is not satisfactory to someone who needs to know the initial
: value of the payoff of 1/S(T) dollar. But I just figured out this yet.

s*******n
发帖数: 347
17
the first one is from John Hull's book

price

【在 b***n 的大作中提到】
: 1. Price a derivative with payoff 1/S(T).
: 2. Up and out put, with barrier H = 100, striked at 100. Current stock price
: 50, no interest rate. what is the price?
: Thanks!

a***x
发帖数: 26368
18
居然看到这个地名。。。。

【在 s*******n 的大作中提到】
: the first one is from John Hull's book
:
: price

1 (共1页)
进入Quant版参与讨论
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相关话题的讨论汇总
话题: price话题: share话题: payoff话题: s0话题: stock