All Questions

274 views

Why should we expect geometric Brownian motion to model asset prices?

Disclaimer: I am a complete ignoramus about finance, so this may be an inappropriate forum for me to ask a question in. I am a mathematician who knows nothing about finance. I heard from a popular ...
41 views

Hedging using relative values

Consider I have two stocks $A$ and $B$, $A$ is trading at $\$40$and$B$at$\$30$. The standard deviation of its returns are $\sigma_A=25\%$ and $\sigma_B = 30\%$. Correlation between the returns is ...
66 views

Exporting Time Series Data For Securities Prices From Bloomberg to Excel

I have a list of securities over a thousand entries long that I want to construct a time series of prices for over a specified historical period (e.g. 2/01/10-2/20/10). Doing this manually would take ...
106 views

Can selling put equity options be a good business?

In one of his last books Jack D. Schwager suggested that selling equity puts can be a good business. The puts are like insurance policies against market downturns and there is a natural demand. ...
19 views

Collateralized Loan Obligation - reliable source of information

Can someone provide me with some reliable source of information about CLOs? Especially some scientific articles etc. Google or wiki are good for starters and I would like to get some examples, ...
92 views

Does anyone have a C# implementation of the Barone Adesi Whaley options pricing model?

Thanks. Can't seem to find it through google. Worst case, if you can provide me the code in Java or C++ I can convert it to C#.
52 views

Question 1.18 from Hull's Financial Risk management CAPM

A portfolio manager maintains an active portfolio with beta of 0.2. Risk-free rate is 5% The market return for a particular year is -30% The fund produced a result of -10%. He claimed the return was ...
47 views

Double auctions in online games

I am currently doing a PhD in mathematics and we study the phenomenon of segregation in double auctions. As it is very difficult to gether datas from financial institutions I wanted to start by ...
72 views

Is there a way to adjust R PerformanceAnalytics function VaR with EWMA or GARCH method?

Is there a way to upgrade R PerformanceAnalytics function VaR with more risk sensitive approaches like EWMA or GARCH? Or is there another R package which can handle the issue?
40 views

Asian option numerical pricing method generates a negative time value

I use R to write a function which simulates price path and calculates the value of an arithmetic Asian option. I found sometimes the value of the option can be lower than its intrinsic value, i.e., ...
49 views

Calculating returns for a mutual fund with dividends

I'd like to calculate returns for a given mutual fund (in this case, PRWCX from troweprice). When I look at their published performance, it says the Calendar Year Total Returns for 2013 is 22.43% but ...
79 views

Bootstrapping Sharpe Ratios

A similar question to this was asked here: How do i test the significance of Sharpe ratio of a strategy using bootstrap I have bootstrapped the original time series (using block bootstrapping) and ...
101 views

Scale of Market Quakes Computation

I would like to reproduce the results in the paper "The scale of market quakes", from T. Bisig, But I am getting stuck at the computation of the Fourier Coefficients in equation (4). They are defined ...
68 views

So I was trading the option contracts on NLY (Annaly Capital Managment) today. The stock took a big dip today which piqued my interests in selling some OTM puts. Since the options market on this ...
30 views

Fixed Income Swap Sharpe Ratio Calculation

I have a Fixed Income based strategy based on swaps. Q1.) Given that swaps are based on a "notional" principal and no actual exchange of principal's takes place, is it fair to assume a funding cost ...
85 views

Pricing a bond contract from the yield curve

When giving a particular class in financial mathematics for a student I saw a problem in a list of exercises that says: How to calculate the price at 15 December 2010 of a bond paying a coupon of ...
42 views

Calibration Problem in the LMM-Skew (Shifted Diffusion) Model

I have implemented the LIBOR market model (LMM) and I am quite satisfied with the results. I have now added a skew to the model as described in 10.1 of Brigo/Mercurio. That is, I have replaced the SDE ...
73 views

Where can I download intraday tick data for DAX and S&P500 index prices? I found only daily closing prices.
53 views

For which instruments performs SABR/LMM better than LMM?

For which class of instruments the SABR/LIBOR Market Model does perform better than the classical LIBOR Market Model? The LIBOR Market Model The LIBOR Market Model — also known as Brace, Gatarek, ...
68 views

Is there a good closed-form approximation for Black-Scholes implied volatility?

While the solution for IV can certainly be reached using numerical search methods, I wonder if a high precision closed-form approximation exists. For example, there is a very robust (precise within ...
61 views

Beta distribution - Holding period

Let's say I have a risk factor that is defined between [0,1], such as recovery rates. Assuming I have daily data, I can estimate the "daily VaR", i.e. the tails over 1 day period, since the data is ...
44 views

What is Base- vs. Implied Correlation of a CDO tranche?

What is the difference between Base Correlation and Implied Correlation for a CDO tranche?
138 views

Filtration and measure change

I asked this question in math stackexchange but to no avail. So i'm trying the luck here. I'm reading Steven E. Shreve's "Stochastic calculus for finance II", and find myself not really understand ...
53 views

Finding historical data for indices [duplicate]

Where can I find historical data for option prices on a given index ? Ideally I'd like to find for a period of several months 1) historical prices on options on a given index 2) historical prices on ...
33 views

MPT and the connection to asset prices / initial capital

I have some question about MPT. Suppose we want to build a portfolio given $N$ assets: $A_1,\dots,A_N$. At time $t$ we build the portfolio using MPT, which yields some weight vector ...
77 views

How can one find an area of research in quantitative finance appropriate to write a masters thesis on? [closed]

I am in the first semester of a MS in mathematics. A requirement for the degree is to write a masters thesis. Here a thesis means writing on a current area of research in finance, but an original ...
53 views

Hedging future USD cost using different IR and forwards

I am facing a problem where I suppose an expense in 6 months from now of 2,500USD. My home currency shall be EUR, and I am trying to hedge given the following information. ...
49 views

Option Prices under the Heston Stochastic Volatility Model

I was wondering if anyone has come across a more straightforward derivation of the semi-closed form solution for the price of a european call under the Heston model than the one proposed by Heston ...
107 views

Calculation of weekly P/E ratio

The P/E-ratio is defined as $$\frac{\text{Market value per share}}{\text{Earnings per share (EPS)}}$$ I have weekly observations of stock prices, but what measure should I use for EPS? Should it ...
118 views

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Where can I find a guide to implement the FAST protocol from scratch having already a FIX implementation ready?

I need to implement a FAST engine from scratch without using any open source or commercial FAST implementations. The FAST spec does not help much so I am not sure from where to start. Have anyone done ...
115 views

What is wrong in this GBM simulation?

I am trying to generate a few samples of GBM using the following very simple MATLAB code: ...
45 views

Rule of Thumb for minimum length of time series for AR(1) estimation

I have a data set of 350 points, I want to estimate the lag 1 auto correlation for different sub-sets of the data. More precisely I want to take non overlapping windows of length 1,2,3....n and ...
98 views

Literature on Empirical Option Pricing

When I started combing through the literature I was astonished about how little the option pricing models are tested against market data and benchmarks are limited. The main barrier is of course ...