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by aschenck80
August 28th, 2006, 6:24 pm
Forum: Student Forum
Topic: Blacher University Volatility Model
Replies: 0
Views: 93809

Blacher University Volatility Model

<t>Anyone had any success with this model? The proposed dynamics are as follows:I implemented a FDM solver for these dynamics but it seems that when I try to price with monte carlo to validate the prices do not agree for certain parameter sets (european put options). Particularly when I turn on the ...
by aschenck80
January 10th, 2006, 4:44 pm
Forum: Student Forum
Topic: Pricing long term exotic currency options
Replies: 3
Views: 123559

Pricing long term exotic currency options

<r>By the way, I just found an excellent paper by Carr and Wu if anyone else has the same questions I did. <URL url="http://econwpa.wustl.edu/eps/fin/papers/0409/0409014.pdf"><LINK_TEXT text="http://econwpa.wustl.edu/eps/fin/papers ... 409014.pdf">http://econwpa.wustl.edu/eps/fin/papers/0409/0409014...
by aschenck80
January 10th, 2006, 4:20 pm
Forum: Student Forum
Topic: Pricing long term exotic currency options
Replies: 3
Views: 123559

Pricing long term exotic currency options

Enough said.Thanks fig.
by aschenck80
January 10th, 2006, 2:14 pm
Forum: Student Forum
Topic: Pricing long term exotic currency options
Replies: 3
Views: 123559

Pricing long term exotic currency options

<t>I am trying to get a feel for how the street prices exotic currency options (both long and short term). Do exchange rates exhibit similar properties that equites do, i.e. discrete jumps, skew, smile, etc... Say I was to price a 2 year cliquet on the fx rate, do I need stochastic volatility and or...
by aschenck80
December 12th, 2005, 2:02 pm
Forum: Student Forum
Topic: Multi-currency, Multi-factor IR model.
Replies: 0
Views: 126966

Multi-currency, Multi-factor IR model.

I need to implement something of this nature and I am trying to decide which modelling framework I should use. Has anyone developed something similar? I am thinking about LMM but I want to make sure I am going in the right direction.Thanks in advance,-a
by aschenck80
November 21st, 2005, 2:48 pm
Forum: Book And Research Paper Forum
Topic: Quasi-Random number sequences
Replies: 0
Views: 129523

Quasi-Random number sequences

<r>I need two papers for a high-dimensional Sobol RNG implementation and QMC simulation I am writing, actually translating, into MatLab code from C++ (Quantlib implementation), but I am short two papers.If anyone has these papers it would be extremely helpful if you could send them to me. "Algorithm...
by aschenck80
November 10th, 2005, 6:08 pm
Forum: Student Forum
Topic: Long Term Stochastic Volatility
Replies: 5
Views: 131142

Long Term Stochastic Volatility

<t>Svetlana and Alan, thanks for your input. I have come across a paper by Christopher Jones in which he studies the dynamics of the general volatility model, dV = k(b - V)dt + c (V^g) dB(t). I discretized and calibrated this process to my data set, and the values returned were interesting. I got a ...
by aschenck80
November 7th, 2005, 7:58 pm
Forum: Student Forum
Topic: Long Term Stochastic Volatility
Replies: 5
Views: 131142

Long Term Stochastic Volatility

<t>This may seem silly, but I need to price S&P index derivatives with maturities that range from 5-17 years and I want to use stochastic volatility. I tried to use the Heston model, but the parameters that come out of my calibration cause the volatility process to hit zero too much and introduc...
by aschenck80
October 3rd, 2005, 7:27 pm
Forum: Student Forum
Topic: MC simulation with deterministic forward rates.
Replies: 7
Views: 135317

MC simulation with deterministic forward rates.

<t>Yes, I am using a simple 1 factor Hull-white dynamics for the moment. I think the problem was with the volatility I was using. It seems that I was using lower volatility than was actually occuring (i forgot to bootstrap to get the forward vol). Now my price is coming in at mid-market like I would...
by aschenck80
October 3rd, 2005, 1:16 pm
Forum: Student Forum
Topic: MC simulation with deterministic forward rates.
Replies: 7
Views: 135317

MC simulation with deterministic forward rates.

I would have to say that it depends more on the shape at a single point in time.
by aschenck80
September 28th, 2005, 2:21 pm
Forum: Student Forum
Topic: MC simulation with deterministic forward rates.
Replies: 7
Views: 135317

MC simulation with deterministic forward rates.

<t>I am pricing a highly specialized lookback option so the vega is very high. I tried applying a cubic spline to the vols and rates but that actually reduced the price slightly. When I use stochastic vol, I get prices closer to the dealer's quotes, but I have reason to believe that they are not usi...
by aschenck80
September 27th, 2005, 5:03 pm
Forum: Student Forum
Topic: MC simulation with deterministic forward rates.
Replies: 7
Views: 135317

MC simulation with deterministic forward rates.

<t>Say that I have a continuous forward rate for each year from 1 to 10 years and I am running a monte carlo simulation to price an exotic (simple bs-dynamics). If I generate more than 1 timestep per year, will this effect my price because I am implicitly assuming that the continuous forward rate is...
by aschenck80
September 13th, 2005, 2:08 pm
Forum: Careers Forum
Topic: Wondering about my future...
Replies: 4
Views: 136899

Wondering about my future...

<t>Good to know others have traveled the path. I love the work I am doing now but exactly as you say, I do not want to become an actuary. This was my biggest 'pigeonholing' concern on the onset, but my firm has been very cooperative with the fact that I do not want to have anything to do with the ac...
by aschenck80
September 13th, 2005, 12:24 pm
Forum: Careers Forum
Topic: Wondering about my future...
Replies: 4
Views: 136899

Wondering about my future...

<t>My firm mostly uses Monte Carlo methods because of the highly path dependent nature of the products we hedge. I have used various equity and fixed income models with this method. However, I am currently working on a 2 factor FD solver to value a Mortgage Servicing portfolio. First cut will be in ...
by aschenck80
September 12th, 2005, 2:36 pm
Forum: Careers Forum
Topic: Wondering about my future...
Replies: 4
Views: 136899

Wondering about my future...

<t>Hi all,I finished my masters in FM from U of C last June and I have taken a job with a consulting firm. My firm provides consulting to insurance companies, who wish to hedge their risky life insurance guarantees (which behave like exotic derivatives). Technically I have a research role, I am in t...
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