1
vote
1answer
76 views

Direct exchange data via a Vendor

I am considering the option between using direct exchange connections vs using a vendor like Bloomberg for market data. I am interested in daily data and potentially tick by tickdata. Initially I am ...
1
vote
0answers
31 views

How to invest in Stocks without an intermediary [migrated]

I am looking to buy stocks but I would like to do so without a broker. From what I can tell, the exchanges are good ole boys clubs that require you know (or pay) someone inorder to participate. Am I ...
5
votes
3answers
147 views

Geometric Brownian motion - Volatility Interpretation (in the drift term)

A Geometric Brownian motion satisfying the SDE $dS_t = rS_t dt+\sigma S_t dW_t$ has the analytic solution $$S_t = S_0\exp\left\{\left(r-\frac{\sigma^2}{2}\right)t\right\}\exp\{\sigma W_t\}$$ Recently ...
4
votes
1answer
143 views

Definition of orthogonality and independence for a stochastic processes

Somehow I can't find the explicit definition of when two processes are supposed to be orthogonal or independent anywhere. I think orthogonality and independence should mean the same thing in this ...
0
votes
0answers
22 views

Forward Yield curve for an arbitrary company

Let say I am analyzing a company XYZ. Credit rating for this company is BB. Now I need to have the 6-month forward Yield curve for this company. Can somebody help me how to find this information from ...
2
votes
1answer
87 views

Does one use the covariance or correlation matrix in cholesky decomposition to generate correlated samples

Can we interchangeably use Cholesky decomposition of covariance and correlation matrix to generate simulations? If not, in which situations do we use one or the other and why? Thanks in advance.
1
vote
1answer
58 views

Value Weighted Return

I recently have started to look at some data from CRSP, and they have a metric called Value Weighted Return (two versions with and without distributions). When I looked it up, it seemed that this ...
0
votes
1answer
64 views

Difference between VaR and credit VaR?

Quick question: is there a difference between credit VaR and VaR or are they the same thing?
1
vote
1answer
56 views

Backtesting Period

Views on timeframes for backtesting vary considerably. Curious on what timeframe/trade size leads to a statistically significant result. For example, what backtest period is reasonable for a system ...
1
vote
0answers
88 views

Mock/practice trading for options (delta/gamma hedging etc.)

I know there are some sites for practicing equity investing. But could you provide me with suggestions concerning options trading etc. I read Natenbergs book on Options and want to test things like ...
0
votes
1answer
90 views

List of financial derivatives Ito's Lemma does not apply

According to Ito's Lemma there is no restriction on the continuity of the stochastic process. The restrictions are on the continuity of the pay-off so that second derivatives with respect to ...
0
votes
1answer
34 views

CAPM as pricing formula

P - price that the asset was purchased. Q - price that it was sold P = Q/(1+r+B(R_m - r)) What is the financial meaning of denominator. Thanks for help.
0
votes
0answers
44 views

Detrending before cointegration

When checking for co-integration , is it necessary to detrend the time series? What is the best way to go about it?
0
votes
0answers
41 views

How to setup quantlib

I installed the quantlib using vc11 but couldn't make it work. I did everything as the tutorial said https://quantcorner.wordpress.com/2012/11/13/installing-quantlib-for-vc11-windows/ And the ...
1
vote
0answers
32 views

evaluating portfolio performance without knowing the amount held on cash accounts

I would like to evaluate the performance of a portfolio mananger. I know his trades, and the initial portfolio holdings. I do not know, however the amount held on his cash account. That is, I ...
3
votes
1answer
251 views

How is the MA (moving average model) useful?

How is the MA model useful in modeling financial data, for example the stock indices? For example, from what i understand in the AR (auto-regressive) model portion, we can use the ADF test to check ...
3
votes
1answer
88 views

Scaling of a transition matrix

I am working on a ratings transition matrix and I wondered how people scale it down to shorter time periods (although one should more or less stick to the estimation period i know). It is clear that ...
0
votes
2answers
149 views

How to incorporate fundamental analysis in quantitative trading algorithm? [closed]

I want to write a quantitative stock trading program based on fundamental analysis. It would crunch through prices, financial reports to look for value stocks. It can support backtesting of strategy ...
2
votes
1answer
68 views

QuantLibXL - Optionlet bootstrapping failure

I am trying to bootstrap the Optionlet volatility surface from a Cap/Floor volatility surface using QuantLibXL. To be specific, the data is from ICAP: ...
2
votes
2answers
134 views

How do I calculate probability distribution of stock prices given option prices?

I'd like to calculate a probability distribution for prices given the option prices for that stock? Any ideas how to do this? My desire is to do this daily and then see how the price PD changes over ...
1
vote
2answers
105 views

Calculate volatility from call option price

Given call option price, what is the simplest formula to get the volatility value ? Test Data: ...
1
vote
1answer
127 views

Price of Bond given credit state matrix

"Consider a credit rating system consisting of four states, A,B,and D(default) with the following annual credit transition probability: A= [ 0.7, 0.2, 0.1; 0.2, 0.5,0.3; 0,0,1] For a company rated ...
2
votes
1answer
118 views

Delta hedging frequency for plain vanilla European options under trading costs

I am looking for methods to select points in time when delta hedging plain vanilla European options under trading costs. It is easy to come up with ad hoc ideas such as Time-based: for example at ...
1
vote
0answers
30 views

Discount rate, convertible debt and the effect of time

The way I understand it is that there are three main parameters to a convertible debt investment. An investment amount A discount rate A trigger event Now under most of the examples I have seen, ...
2
votes
0answers
14 views

How can dividend protection be considered in the binomial model in pricing the convertible bond?

If the convertible bond has dividend-protection, how can we cater it in the binomial model? If there is dividend protection at or above 1%, can we impose input of dividend yield of 1% in the ...
-4
votes
1answer
39 views

Which is the nearest town to London Gatwick [closed]

I have to spend twelve hours there every month awaitng a connection. The airport bars / shopping don't do it for me any more. Where's nearest decent sized town, and how long to get there / what cost ...
1
vote
3answers
184 views

What does it mean by autocorrelation coefficient near 1?

It is said that the time series has a stochastic trend if the first autocorrelation coefficient will be near 1. Q1) What does it mean by the above statement? Q2) How do we calculate the first ...
1
vote
1answer
39 views

What are the equation that gives hurst exponent of value >0.7 and <0.3?

I had been working on algorithm which uses the Hurst Exponent. Once i random walk simulation on matlab, x = cumsum(randm(1000,1)), I was able to get a hurst value close to 0.5. To analyze the use of ...
3
votes
2answers
79 views

How can I show that $u=e^{\sigma\sqrt{\Delta t}}$ in the binomial option pricing model

Given that $e^{r\Delta t}(u+d)-ud-e^{2r\Delta t} = \sigma^2\Delta t$ I would like to show that $u=e^{\sigma\sqrt{\Delta t}}$ I know I must somehow use Taylor's approximation $e^x = 1 + x + ...
0
votes
0answers
36 views

Log returns vs Relativizing to Portfolio size of $1

In a current empirical research project, I am tracking a non-parametric measure of a transaction cost. To this extent, I track this cost in two ways Cost in terms of log returns Cost in terms of ...
1
vote
2answers
70 views

Controlling portfolio concentration

I'm working with a heterogenous basket of instruments (in volatility terms). Risk parity allocation seems to be useful for the portfolio( * 1/Volatility). However, there are times when the ...
0
votes
1answer
54 views

Volatility swaps historical data

I am preparing a study about Volatility and Variance Swaps. Does anyone know where I can found historical public data regarding this instruments? Thanks!
-1
votes
1answer
51 views

Calculating the sensitivity of the modified bond duration to changes in the coupon rate

Given that $B=Ce^{-y} + Ce^{-2y}+ (100+C)e^{-3y}$ where B is the bond price, C is the coupon. and It is a 3 years annual coupon bond. I want to find $\frac{dD}{dC}$ where $D$ is the modified ...
5
votes
2answers
119 views

Risk neutral Esscher transform of exponential Levy processes

Let $X_t$ be a Levy Process and $e^{X_t}$ the corresponding exponential Levy process. Using the Esscher transform for a change of measure for which the Radon-Nykodym derivative is ...
2
votes
2answers
131 views

Definition of Return of A Long/short Portfolio

This can either be a silly question or a question with no sure rigorous answer but defined with some convention. Any way, here it is. What is the (industrial recognized) definition of the return of a ...
1
vote
1answer
64 views

What is a good index to track short term interest rates?

This is an FX question. I want to track short term (overnight or next best thing) rates for major/em ccys. What's the best way of doing this? Is there an index I can follow? Preferably something ...
3
votes
0answers
38 views

Characterizing relation “ has no less information than” between information systems represented by Markovian matrices

I crossposted this question on math.stackexchange. Background: Suppose that an investor's utility is both determined by the state and her action taken. A fact of life is that she can't observe the ...
2
votes
1answer
228 views

Places to make quant code/tools publicly avaliable

Over the years I have developed several tools - including pricing, optimization and calibration tools - most in VBA, C# and C++ I would like to make them publicly avaliable. Aside from putting up my ...
0
votes
1answer
101 views

Use of geometric mean for average return of several indices

Can anyone give any reference for using the geometric mean to average the returns from several indices? Note, this question is not about the usual use of geometric mean to obtain the average return ...
3
votes
0answers
124 views

Algorithmic Trading Model Calculation and Stale Data

I'd like ask everyone a more concurrency programming but definitely quant-finance related question. How do you deal with staleness of data in market hours as quote ticks are streaming and your model ...
5
votes
1answer
67 views

Pricing a bond with variable strike collar with QuantLibXL

I am trying to price a floating rate bond with a capped and floored interest rate. The strikes of the caps and floors vary, but are known in advance. I am trying to do this with QuantLibXL, but I am ...
0
votes
1answer
51 views

Ex-Ante tracking error how to determine the look back period

I am looking to compare the ex-ante predictions against the post values. I am using a look back period of ranges from 1 year to 5 years to construct my covariance matrix that I am using for my ex-ante ...
0
votes
0answers
26 views

Minimum PD under Basel II retail asset?

I have been told that under Basel II the minimum PD that one can assign to any portfolio/segment classified under the retail asset class is 0.33%. But Google searches return nothing and I can't seem ...
6
votes
2answers
125 views

Normally Distributed Returns Become Leptokurtic Due to Compounding

I was running a bunch of simple simulations in excel the other day in excel. Using the NORM.INV(RAND(),0,1) to simulate daily stock returns I noticed that the more compounded the returns, ie, the more ...
1
vote
0answers
36 views

How do I determine what is a separate objective in a multi-objective portfolio optimization?

Is there a general rule to determining when to separate objectives when developing a multi-objective portfolio optimization? For example, one might start with a standard portfolio optimization of ...
0
votes
0answers
15 views

Cost dependency quantification

Suppose one wants to estimate the manufacturing costs dependence of the price of a specific raw commodity, are there good quantitative methods for making such estimation? I'm interested in creating a ...
4
votes
4answers
121 views

Why was NASDAQ(or other index) not fluctuating in 70s and 80s?

Today I have a search of historical NASDAQ back to 70s and noticed the index was slightly increasing in 70s-early 90s and rising up and down in recent decade of years. Why would that happen? The only ...
0
votes
2answers
97 views

Sharpe Ratio and time spent in loss

Is it possible to express, given an annualized Sharpe Ratio value, what is an expected maximum/average time spent in a draw-down or something in this manner? E.g. with SR of 10, you'd expect to spend ...
1
vote
1answer
69 views

Pricing a piece of asset whose dividend stream following a Markovian matrix

I'm trying to calculate the result of an simple example on page 326-327, in Harrison and Kreps(1978). It's pricing a piece of asset whose dividend stream is a simple Markovian process. Here's my ...
4
votes
2answers
91 views

Critique against consumption-based asset pricing theory?

I find asset pricing theory very vague and full of assumptions, especially the consumption-based modern theory. In its essence, the theory states that asset prices depend on the covariance between ...

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