4
votes
2answers
82 views

Two definitions of arbitrage in finite markets

I have read two definitions of the term an arbitrage opportunity in the literature*. Are they equivalent? Consider a single period market model over the measurable space $\Omega = \{\omega_1, \dots, ...
0
votes
1answer
39 views

Asset Pricing: What happens to the Risk-Free rate and the Equity Premium?

What would a standard asset pricing model predict for the risk-free rate and the equity premium, if the volatility of consumption growth fell? My gut feel is that the equity premium should fall, but ...
0
votes
0answers
63 views

Intuitive way of calculating Option Prices

I am trying to figure out a way to price options without using the black scholes model(at-least remove some dependency from it). I want to approximate the price of options in the Black Scholes world, ...
0
votes
0answers
13 views

The right scaling of input data in portfolio optimization

I play around in R to get a better feeling for portfolio optimization and started with a very simple toy model. Already in this case I'm wondering about the following questions: Assume I have daily ...
0
votes
1answer
53 views

Accurately calculating Greeks for options near expiration

I understand that when a vanilla European option is near expiry, the Theta calculated from BS formula is very inaccurate and almost meaningless for practical use. However, I'm not sure if other ...
0
votes
2answers
38 views

CAPM - Do I use start or end of period prices?

If I use monthly price data in the standard CAPM, should I take the price at the beginning or the end of the month? What is the convention? Or does it not matter? Is there any literature that deals ...
0
votes
1answer
42 views

what % of stocks with +$1b market cap will double in 3 years on average historically?

If I'm looking to pick stocks that will double in 3 years, how do I figure out what is the likely universe that I'm choosing from? I just want a rough estimate of the universe given the market cap ...
0
votes
1answer
20 views

Heteroskedasticity and significance of parameters

I am doing a regression analysis and my variable of interest turns out to be significant at the 5% level, but the model contains heteroskedasticity which can not be mitigated (using Box-Cox, Feasible ...
0
votes
2answers
28 views

Correlation of Asynchronous Brownian Motion

I am trying to use the closing prices of the S&P 500 and the Nikkei Index to see how they are correlated (assuming they are exactly 12 hours apart). In order to test my method, I have generated ...
0
votes
0answers
13 views

Do smaller horizons better estimate volatility for longer horizons than the longer horizons?

Suppose you want an estimate of the 20 day return variance. You could grab historical lagging 20 day windows to build an estimate, or you could build 10 day lagging windows (twice as many data points) ...
1
vote
1answer
50 views

Why are Yahoo Finance API values different from the web interface?

(SOLVED: Solution is below the second graph) The API results on GSPC: Same period in the interactive chart of ^GSPC: SOLVED ...
1
vote
0answers
84 views

Numerical Methods for Merton Model

The stochastic differential equation for an underlying with jumps in Merton model is: $$d{{S}_{t}}=\mu \,{{S}_{t}}dt+\sigma \,{{S}_{t}}\,d{{W}_{t}}^{P}+(J-1){{S}_{t}}d{{q}_{t}}$$ where $t \quad\,\,\, ...
0
votes
2answers
107 views

GARCH model is better for index than stock

We have used a standard GARCH(1,1) model with t distributed innovations for daily data of S&P index and JPM stock. Question: is there any financial or statistical reason why the GARCH model ...
0
votes
1answer
24 views

Factor sensitivities for EURUSD swap

Trying to understand various risk factors for a EURUSD swap. While I understand why a EURUSD swap would have USD LIBOR, EURIBOR, EURUSD currency as risk factors, why is it that it would also have EUR ...
0
votes
0answers
16 views

Reading Recommendations on ETF's / “Factor certificates”

I'm looking for some good papers on exchange traded funds, especially on so called factor certificates (e.g. 2x underlying long, so when the underlying moves 1% the certificate moves by 2%). My ...
0
votes
1answer
23 views

Financial statement and stock market data [duplicate]

How is it possible to have access to Datastream, Bloomberg, Wrds database? Is there another free database with long historical data? In fact, I need long time series data belonging to NYSE and NASADAQ ...
0
votes
1answer
29 views

Open source code based on quandl for security analysis and options priming

Quandl seems to be an excellent source of wide range of free/open financial data. But is there an open source code or platform that uses the quandl datasets to perform security analysis and option ...
1
vote
0answers
48 views

stochastic log utility maximization problem, portfolio optimal strategy

Looking for a help with explaining some steps of the logarithmic utility maximization problem where given market with a zero safe rate and risky asset with dynamics $$ \frac{dS_{t}}{S_{t}}=\mu B_t ...
0
votes
1answer
38 views

Calculating VaR of an Incomplete Distribution

I am currently completing a multiple choice question that has stumped me. An asset has its price and its corresponding probability described as: 100, 0, -50, -70 and -90 with probabilities 50%, ...
0
votes
1answer
122 views

Do you think this strategy will work?

I have been playing with paper trading and am planning on getting into the real stock market soon, but I want to make sure my strategy is realistic before I put real money on it. I made a program ...
0
votes
0answers
20 views

Modeling the distrubution of future swap rates

I'm interested in better understanding the unwind cost/value of a swap at various points in the future. Suppose that we have entered a 7Y swap (paying fixed) and want to understand the unwind ...
0
votes
2answers
19 views

Pricing of Interest rate swap with start ex. 01/06/2015 to 03/06/2015 - 2 extra days? Change discount factor and fixed payments?

I hope you can help me. So let say we have an interest rate swap, with the following characteristic: Start in 30/06/2015. End in 02/07/2019 It has fixed payment every year, and floating every ...
0
votes
0answers
19 views

Impact of the interest rate volatility in the valuation of a bond

I am currently valuating a bond whose cupons have the following structure: $\left\{ \begin{array}{rcl} H_j-2\% & \mbox{if} & R_j<H_j-2\% \\ R_j & \mbox{if} & H_j-2\%\leq R_j\leq ...
0
votes
0answers
29 views

Generating process for stock price paths in this paper?

I am reading Longstaff and Schwartz Valuing Aerican Options by Simulation because monte carlo simulations, especially their use in option pricing, is interesting to me. However, I am having some ...
0
votes
1answer
38 views

stochastic discount factor transformation

I have $$\frac{dM_t}{M_t}=-\frac{\mu}{\sigma} dW_t + \gamma_t dB_t, \tag{1}$$ where $B_t$ and $W_t$ are two independent Brownian Motions, which was further presented as $$ M_t=\exp \left( ...
3
votes
2answers
89 views

How to transform Ornstein-Uhlenbeck parameters from hourly to daily?

I get the parameters (long-term mean, volatility, mean-reversion speed, correlation) of two correlated Ornstein-Uhlenbeck processes via a likelihood estimation from hourly data. If I want to transform ...
0
votes
1answer
31 views

Pricing Cancelable swap

Consider a first hypothetical, a swap. Party 1 is paying 6 month Libor, semi-annually. Party 2. pays $1+3*(\frac{Index_\color{red}{T}}{Index_0}-1) $ only at maturity. Say the notional is 1. $Index_t$ ...
0
votes
0answers
63 views

Books for quant trading

I am A math student who wants to start trading stocks. Which books will you recommend to help me develop tools/strategies for trading? I have taken finance classes and know some technical analysis. ...
0
votes
0answers
16 views

Should you use converted currency when fitting a Generalized Linear Model

So long story short, my data set has a bunch of currency values (ie: Dollars, Euros, Pounds) over the span of several years. The original idea was that I should use a daily conversion rate to ...
3
votes
0answers
115 views

Common, practical methods to calculate fair value of a stock?

What are some common methods in determining fair value of a stock, from market data only, in real-time, as close to instantaneous as possible? The kind of pricing that algorithmic trading engines ...
0
votes
2answers
69 views

Correlation between 2 stocks [closed]

If Stock A returns 5% on average in year Y And Stock B returns 2% on average in year Y Does this mean that correlation is 40%?
1
vote
0answers
39 views

Proper Definition of Backtesting Parameter

Currently I'm trying to test the efficacy of a tail-hedging strategy in which an investor goes long in an index and correspondingly buys 1-month OTM put options. For practical reasons, the options ...
1
vote
0answers
20 views

How to run swapbyzero matlab function in a loop [closed]

I made a for loop in Matlab in which I price a swap by using the swapbyzero function. The swapbyzero function requires a rates structure created by using the intenvset function from matlab. The ...
0
votes
1answer
64 views

accuracy of Yahoo Finance stock data (Python module)

I am using the yahoo finance python module: https://pypi.python.org/pypi/yahoo-finance I am using it for a project and would like to see if anybody else uses data from this source and can vouch for ...
3
votes
0answers
48 views

subadditivity of VaR

It is known that the VaR (Value at risk) doesn't fulfill subadditivity, i.e. $VaR(X)+VaR(Y) \le VaR(X+Y)$ But for elliptical distributions subadditivity is true. Questions: (1) Which ...
3
votes
2answers
79 views

Why do we need correlated random variables in a Monte Carlo simulation?

Question: I don't understand why a Monte Carlo simulation needs correlated random variables. Isn't each simulation thread independent? Background: Specifically, I'm referring to the below example on ...
0
votes
0answers
23 views

What is broker neutral trading system?Can I use leverage if using broker neutral EMS?

What really means broker neutral trading system?Can I use leverage if using broker neutral EMS?
1
vote
0answers
51 views

VIX ETP Net Vega exposure

Does anyone know the calculation that these EQD desks are using to calculate the net Vega exposure of the VIX ETPs? I am assuming it involves shares outstanding in each ETP, the value of a 30 day ...
0
votes
0answers
21 views

Practical Implications of Fama French Loadings

Suppose you have historical returns for a portfolio. You regress these against the Fama French factors to get the loadings/coefficients. How can you use this information? For example, can you use the ...
3
votes
0answers
52 views

What are the best measures of market liquidity?

Does any single metric provide a convenient way to capture depth, breadth, and resiliency, or to distinguish between transitory and persistent effects (i.e. between the stationary and random walk ...
0
votes
0answers
41 views

Coherent Risk Measures and VaR

I am working on a problem that is worded exactly as follows: Consider the functions $\rho_{1}$ and $\rho_{2}$, defined on the space of random variables with finite expected value in the following way ...
3
votes
1answer
29 views

Calculating ex ante returns & probability of a negative return over some horizon

One way to go on about this is to parametrically calculate the returns, i.e. hold the exposure constant and backtest against the factor changes over that horizon. This is not forward looking per se ...
4
votes
2answers
42 views

expected change in value of a derivative in a multicurve framework

I'm reading Piterbarg paper, "Funding beyond discounting: collateral agreements and derivatives pricing." and have a question about equation $(6)$. There he says that for a derivative we have ...
1
vote
1answer
59 views

Issues in estimating VaR with GARCH

I am currently trying to figure out how to estimate the value at risk using the rugarch package in R. I've come to a result, but it seems a bit excessive. Here's my code: ...
22
votes
5answers
3k views

Why aren't econometric models used more in Quant Finance?

There is a big body of literature on econometric models like ARIMA, ARIMAX or VAR. Yet to the best of my knowledge practically nobody is making use of that in Quantitative Finance. Yes, there is a ...
1
vote
1answer
75 views

Differentiating a Payoff

Okay this is probably going to be an extremely easy/straightforward question but I thought I should post it here just to double check. Suppose I have a payoff $\Phi = (S_{T}-K)^{+}$. Now let's say I ...
0
votes
0answers
17 views

Using the univariate regression coefficient to calculate cumulative return - does it make sense?

When testing a stand-alone signal usually one of the simple tests I do is a long-short equal-weight strategy to see how the wealth chart looks like. Going through my predecessor's code I see ...
0
votes
0answers
13 views

Is my demand prediction too low?

Hi i have a problem right now at work. For certian business segments,some sales target are establish each year. This targets are establish based on the managers feelings. Its like this: Manager: "so ...
1
vote
2answers
59 views

Correlation: Use Price or Return? Return doesn't make sense [closed]

I am trying to find the correlation between the returns of two indices over a long period of time (10 years+) . Should I be using the index daily price level or the index daily total return? Most ...
1
vote
0answers
23 views

Fama-French Factors for ETFs and MFs

Is there a public source or a paid service that provides FF3 (or FF4 = "Carhart") factor loadings for US traded ETFs and Mutual Funds? Something that is regularly updated and that provides comparable ...

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