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by ruphus
November 5th, 2004, 8:53 pm
Forum: Student Forum
Topic: garch-model - incomplete markets?
Replies: 0
Views: 169960

garch-model - incomplete markets?

<t>hi,if i want to price an european fx-option with a garch option-price model similar to the one from Duan, then there doesn't exist an unique martingale-measure.are the markets always incomplete if i use a garch model and a not constant contingent variance?why is that? does any one knows a got res...
by ruphus
October 7th, 2004, 7:56 am
Forum: Student Forum
Topic: Garman-Kohlhagen
Replies: 1
Views: 174498

Garman-Kohlhagen

Hi,does anynone know a good paper or webside where the derivation of the Garman-Kohlhagen formula is explained. I got the original paper but it would be great if I had another source.thanks a lot.
by ruphus
October 6th, 2004, 5:41 pm
Forum: Student Forum
Topic: eurusd
Replies: 8
Views: 174125

eurusd

<t>thanks amali,I buy an one month call-option on lets say on 28th of may 2004. and I have the spot price of that day, too.then you say I need the spot settlement date. is that 2nd of june (because of bank holidays)?then I go one month in the future, i.e. 2nd of july and subtract two days, i.e. 30th...
by ruphus
October 6th, 2004, 2:48 pm
Forum: Student Forum
Topic: eurusd
Replies: 8
Views: 174125

eurusd

<t>hi,if you average the bid- and ask- spot price, then the inverse rate is 'correct', isn't it?as you pointed out, is the there a spread in the market, does that mean that I shouldnt price an eurusd-call with an average spot-price? instead I should take the eurusd-bid rate?fx-option: do you know ho...
by ruphus
October 6th, 2004, 2:06 pm
Forum: Student Forum
Topic: eurusd
Replies: 8
Views: 174125

eurusd

<t>hi,thanks for you answer.the exchange rate between eur and usd is eurusd, i.e. for one euro I get 1.23 us-dollar.but the exchange rate between usd and yen or usd and chf is different quoted, i.e. how much us-dollar do I get for one chf or for 100yen.why that difference?and my second question was ...
by ruphus
October 4th, 2004, 8:26 am
Forum: Student Forum
Topic: simple calculation - I need help
Replies: 4
Views: 173160

simple calculation - I need help

<t>thanks.concerning the example for call gbp against us-dollar and put dollar against pound: spot = 1.6 $/Poundif the strike wouldnt be 1.6 but lets say 1.4$/gbp. if I want to make the premium of the put equivalent to the call-option, do I have to multiply first by the spot, in order to value the s...
by ruphus
October 3rd, 2004, 10:38 pm
Forum: Student Forum
Topic: simple calculation - I need help
Replies: 4
Views: 173160

simple calculation - I need help

<t>thanks daveangel!hi,thanks for you quick reply.lets say I am looking at EURUSD, i.e one euro values 1.24 us-dollar. so the fx-exchange-rate is 1,24$/€.If I want to value a call on Euro against Us-Dollar with the formula of Garman-Kohlhagen or Black-Scholes, respectivly, can I use the EURUSD rate?...
by ruphus
October 3rd, 2004, 6:12 pm
Forum: Student Forum
Topic: simple calculation - I need help
Replies: 4
Views: 173160

simple calculation - I need help

<t>in hull, page 284: example for a fx-option:foreign-exchange: usdgbp=1.6, i.e. one pound has the value of 1.6 us-dollara call option on the british pound is considered:strike: 1.6 (does this mean 1.6 us-dollar/pound?)r_usa: 0.08 (this is the domestic interest rate)r_gbp: 0.11 (=r_f, i.e. the forei...
by ruphus
October 3rd, 2004, 1:39 pm
Forum: Student Forum
Topic: delta given - what is the strike?
Replies: 20
Views: 176482

delta given - what is the strike?

<t>are you sure, that for a put on euro against the us-dollar with the exchange-rate quoted as EURUSD, i.e. the value of one euro in us-dollar, r_d is the USD rate?in hull (p.283) is mentioned that the exchange rate is the value of one unit of the foreign currency measured in the domestic currency. ...
by ruphus
October 3rd, 2004, 9:31 am
Forum: Student Forum
Topic: delta given - what is the strike?
Replies: 20
Views: 176482

delta given - what is the strike?

<t>if I assume that the fx-exchange rate for eurusd is 1.22, i.e. one euro equals 1.22 us-dollar. the implied volatility for a put-option with maturity 1 month and delta_put=10 is according to the volatility-matrix 10.83%.does this mean that I am considering a put on euro against the us-dollar? in t...
by ruphus
October 2nd, 2004, 9:19 pm
Forum: Student Forum
Topic: delta given - what is the strike?
Replies: 20
Views: 176482

delta given - what is the strike?

<t>thanks for you quick answer!am I right that an eurusd-call, i.e. the right to buy euros at maturity is equivalent to an usd-put, i.e. the right to sell us-dollars?an in the volatility-matrix, what kind of options are considerd? on the left for the put-columns for example a eurusd-put, i.e. the ri...
by ruphus
October 2nd, 2004, 6:15 pm
Forum: Student Forum
Topic: delta given - what is the strike?
Replies: 20
Views: 176482

delta given - what is the strike?

<t>hi,thank you for you answer!but why dont you title a volatiltiy-matrix with delta-values ranging from 0 to 1 for a call-option. why do you label the matrix with deltas from put and call options,and why are the delta-values declining on each side from the atm-column? does the right side of the mat...
by ruphus
October 2nd, 2004, 3:38 pm
Forum: Student Forum
Topic: delta given - what is the strike?
Replies: 20
Views: 176482

delta given - what is the strike?

<t>hi quantie, thank you very much for you answer. Now I know how to calculate the strike price for a given delta.but I am not sure what the second line of the following matrix stands for. you got any idea? if it is delta, then I dont understand why the figures on the left side, i.e. for the put col...
by ruphus
October 2nd, 2004, 10:19 am
Forum: Student Forum
Topic: PhD Quant: Academic or Market?
Replies: 13
Views: 175465

PhD Quant: Academic or Market?

<t>What would you suggest for a graduate student? rather start stright away in the industry or rather continue with a phd which would last about 3 or 4 years?Aaron pointed out that the demand for quants will decline in the near future. Does it make sense to continue with a finance phd and then try t...
by ruphus
October 2nd, 2004, 10:14 am
Forum: Student Forum
Topic: eurusd
Replies: 8
Views: 174125

eurusd

<t>hello, am I right, that the official exchange rate for euro and us-dollar is eurusd? why do there existst fx-pairs like: eurusd but gbpusd or jpyusd? if I want to price a eurusd fx-option with garman-kohlhagen lets say. what is the foreign and what the domestic interest rate? is the interest rate...