2
votes
2answers
128 views

VIX-implied Volatility calculator

Does anybody know any implied volatility calculator for VIX Options, possibily in Matlab? For Vanilla Options, I'm currently employing this function which is very fast and reliable (much more than ...
1
vote
1answer
67 views

How to use WACC for investment?

How to use a value of WACC? I have calculated WACC of company to be 7%. What if company had smaller or bigger WACC? Which one would attract investment?
2
votes
3answers
113 views

comparing modified VaR to ordinary VaR

What inferences can one draw when given a modified VaR at x% confidence and an ordinary VaR at x% confidence level. If the two are equal one inference can be that returns are gaussian but that also ...
-1
votes
1answer
32 views

How should I interpret MDD and ASD? [closed]

I'm studying hedge funds and I'm looking at two figures that I'm not sure how to interpret: The first is Max Drawdown, which I see scaling from 0 to -30ish. Is Fund A with a MDD of -15 more or less ...
0
votes
0answers
59 views

How do I track implied volatility of specific delta?

I'm a newbie with respects to volatility trading and options. I recently purchased a book on the topic called "Trading Implied Volatility -An introduction" by Simon Gleadall. It's been one of the most ...
4
votes
1answer
167 views

Historical Financial Statement to Backtest in R

I would like to preface this by saying I am preparing for an upcoming internship this summer so I am extremely new to Quant Finance. At my university we have access to Datastream by Thomson Reuters ...
3
votes
1answer
50 views

Why Beta Distribution for Credit Migration

When modelling credit migration probabilities (e.g. AAA to AA), research has indicated the use of the Beta Distribution simply because it fits empirical data. My question is; What are some other pros ...
3
votes
5answers
516 views

Is there any way to easily estimate and forecast seasonal ARIMA-GARCH model in any software?

I use R to estimate a seasonal ARIMA(8,0,0)(5,0,1)[7] model for the seasonal differences of logs of daily electricity prices: ...
1
vote
0answers
71 views

Ibrokers: reqMktData extremely slow when adding tickers

I am trying to snap prices in R for the latest price for a list of stocks (around 150). When I snap them for 2 stocks, it's almost instantaneous: ...
1
vote
2answers
182 views

Which risk free rate is assumed by market when pricing american options?

I'm just started with finance, so maybe my question is dumb or answered elsewhere. Please guide me to relevant materials. According to put-call parity more time to expiration means more difference ...
1
vote
1answer
85 views

Median value for geometric brownian motion simulation

I'm trying to simulate stock prices using GBM. I am using the following formula, and MATLAB function, to determine the stock prices: $\nu = \mu - \frac{\sigma^{2}}{2}$; $S = S0*\text{[ones(1,nsims); ...
1
vote
1answer
111 views

Log returns and GARCH models

I try to model currency rates volatility using GARCH models through the RUGARCH package in R. Starting from the observed currency rate series, I compute the log-return through: ...
2
votes
1answer
99 views

Do we need Feller condition if volatility process jumps?

It is fairly known that in affine processes, as Heston model \begin{equation} \begin{aligned} dS_t &= \mu S_t dt + \sqrt{v_t} S_t dW^{S}_{t} \\ dv_t &= k(\theta - v_t) dt + \xi \sqrt{v_t} ...
4
votes
1answer
99 views

What are the empirical limitations to testing market efficiency?

I have encountered a rather elegant argument about the limitations of empirically testing for market efficiency, involving the central point that we do not know whether a result is due to the "true ...
2
votes
2answers
191 views

Free access to official real-time and intraday data for exchanges [duplicate]

Where can I obtain all official real-time and intraday data for exchanges — NASDAQ, NYSE, AMEX, OTC, CME, etc? I feel like the raw data is out there to be consumed and parsed at no cost (except the ...
1
vote
1answer
84 views

How does Reuters quote caps?

I'm wondering which curves should I use when passing from the Implied volatility to prices. When I read an implied volatility (for instance 3Y Cap strike 0.5%) the discounts and forward rate ...
0
votes
0answers
170 views

What is the best real time data feed - IQFeed, kinetick.com, etc?

This is my first post, and I know of quant's vast knowledge base of the users. Thanks in advance for any assistance. Any quantitative testing, benchmarking, expected lag, true numbers comparing all ...
1
vote
1answer
69 views

What are the units of the variables appearing in a standard stochastic differential equation for a Wiener process?

The Black Scholes model assumes the following form for the Wiener process describing the evolution of the stock price S: $dS=\mu S dt + \sigma S dX$ Clearly $S$ ...
1
vote
1answer
384 views

Python code to download historical firm data

I am looking for a Python code that scraps a website to download historical firm data such as market capitalization, dividend-yield, and so on. I have a code that downloads the current firm data from ...
1
vote
1answer
67 views

Am I in a long or short position in this case? (Cross hedging)

An airline expects to purchase 2 million gallons of jet fuel in 1 month and decides to use heating oil futures for hedging. The variance of the heating oil futures price is 1,5 times bigger then the ...
0
votes
1answer
55 views

Is this process predictable or not?

Consider a market model with two assets which are modeled as usual by the stochastic process $S^0$ and $S^1$, that is adapted to the filtration. Can anyone tell if this process is predictable or ...
1
vote
1answer
263 views

Technical Analysis in FX: literature on effective methods

I am trying to use technical analysis method (Kagi and Renko method in particular) to analyse my high frequency data. I applied those methods over 1 year, 2 years and 5 years high frequency data. I ...
1
vote
1answer
69 views

Geometric Return & Performance Results for Quarterly Rebalancing

I have a Portfolio that is rebalanced every 3-months. The portfolio is made up of assets that have daily log-returns. I am a bit confused when charting the results using ...
6
votes
1answer
64 views

Calibration of nested pricing models consistently on two different classes of derivatives

Hi everyone, I'm programming in MATLAB and I have the following optimization problem in calibrating several nested specifications of pricing models. Summary: I have two pricing models ($1$ and $2$, ...
1
vote
1answer
77 views

Critical Appraisal of Approaches countering Parameter Uncertainty in Portfolio Optimization

It is very hard to come up with legit and solid advantages and drawbacks of the various approaches wich are trying to counteract parameter uncertainty in portfolio optimization procedures. In my ...
0
votes
1answer
57 views

Yahoo currency api

I've had a currency widget made for me which is based on http://query.yahooapis.com/v1/public/yql?q=select I am wondering if I can use it on my site, which even though it not more than a hobby could ...
1
vote
1answer
89 views

If the risk neutral probability measure and the real probability measure should coincide

Sorry if this may be a stupid question. I have not had that much mathematical finance, I've only learned about discrete time models. But lets for the argument say that you have a stochastic process ...
3
votes
2answers
247 views

Arbitrage and dominant strategies

If there is no arbitrage there is no dominant trading strategy, but there may be arbitrage opportunities even if there are no dominant trading strategies. Could you explain this statement and bring ...
0
votes
0answers
20 views

discounted price economic meaning

Could you please explain why we discount the prices using bank account or some numeraire, what is its economic meaning. Specifically The movement of the security prices relative to each other ...
1
vote
0answers
50 views

Jensen's alpha with timing activities

Why is Jensen’s Alpha not an appropriate measure of performance anymore, if the fund manager is a perfect market timer as stated for example in the Treynor-Mazuy-model or the Henriksson-Merton-model?
0
votes
3answers
85 views

Variance calculation

How could I calculate variance when I have a snapshot of a portfolio that shows the following for each stock: Purchase Price, Close Price, Change in value, Change in percentage, Shares owned, ...
0
votes
1answer
59 views

Component VaR is additive but at what level

I have a portfolio data as ...
1
vote
1answer
130 views

Arrow-Debreu Price in “The Volatility Smile and its implied Tree”

I was reading the old, but still interesting paper "The volatility smile and its implied tree" by Derman and Kani. I have a two questions about the derivation of the $2n+1$ equations, both of them ...
7
votes
5answers
327 views

Can classical economics explain *any* of the so-called stylized facts of finance?

I am doing some reading on the (historical) emergence of the Black-Scholes implied volatility smile for index options (yes - post 87), and I stumbled across an economic paper attempting to explain the ...
0
votes
1answer
82 views

Backtesting software with custom data input

I was considering to develop a custom backtesting platform for myself. However, I see that it would require some significant time and effort, and the result might not be as initially expected. So I ...
0
votes
1answer
34 views

Importing daily data: '-1' in volume column

I am working on importing some daily data from a public data source as csv format. The csv convention of the file seems to be that if data is not available for a field, a single white space is used ...
1
vote
1answer
148 views

Forex P&l Attribution on Physical Forward position

Please validate my unrealized Fx P&L calculation on the commodity forward contract e.g. consider i have bought 1 MT of wheat at 300 EURO my financial currency for company is USD. I am using below ...
4
votes
0answers
158 views

Integral-differential equation for forward rates

I am struggling in this question: Let $P(t,T)$ denote the price of a zero-coupon bond (with marturity at time $T$) at time $t \in [0,T]$. As usual, at time $t$ for maturity $T$, the forward rate is ...
0
votes
0answers
26 views

How to calculate APR on term year

What is the APR on a $$300,000 fixed rate loan amortized over 30 years but due in 10 years if the stated annual interest rate is 5.0% and the lender charges 2% as an origination fee, $18 for a credit ...
0
votes
1answer
36 views

Where to get analysts' earnings estimates data? [duplicate]

I know thomsonreuters provide analysts' earnings estimates data. Is there any sources I could get it for free? For example, this website has analysts' earnings data. What's the source of this and how ...
1
vote
1answer
407 views

examples of c++ code with application to quant finance [closed]

I've some intermediate knowledge in C++. However, the knowledge is more of a theoretical nature and not applied to quant finance problems. I'm looking for good sources, code examples books blogs ...
0
votes
1answer
45 views

Calculating “Market Index Dividend Yield” of the ASX

In attempts to establish an investment portfolio with a long term horizon, the method of relative dividend yield has caught my attention. I require the Market Index Dividend Yield to proceed. The ...
0
votes
0answers
53 views

For futures contracts, do we need to do price adjustment during live testing?

I am trying to do pair trading on a pair of future contracts, e.g. CME gold and silver. During the training of my trading model, I do forward adjustment on the pair of future contracts. Let the ...
0
votes
1answer
123 views

Skew in Black Scholes model

We are modeling Foreign exchange rates using Black Scholes model given below: $$F_{t}=F_{t−1} + (r_d−r_f)F_{t−1}dt + \sigma F_{t−1}dW_t$$ Where: $F_t$ and $F_{t−1}$ are FX rates at time $t$ and ...
1
vote
1answer
105 views

To lump or not to lump

Suppose I have a very simple asset whose price takes only three possible values: $X_t\in \{-1,0,1\}$. I also got some discrete time series $X = (X_t)_{t\geq 0}$ and I would like to come up with a ...
2
votes
1answer
142 views

ARIMA model, cannot get rid of low order ACF spike

I've gone through all the steps to fit a good ARIMA model - I plotted the data, I looked at the ADF tests, I looked at the ACF plot with no AR and MA terms just a constants. I came up with an ...
1
vote
1answer
72 views

What do I need to do with my data before fitting the ARIMA model?

I'm fitting a stock price time series data to ARIMA model and I have a question about the assumption. Is it that ARIMA only applies to stationary data? The ACF and PACF of the data (and the logged ...
0
votes
3answers
2k views

How does Yahoo finance calculate Beta?

I am trying to replicate the beta value that yahoo calculates but I am getting different results. According to Yahoo, its beta is calculated using 5 year returns against the SP500: yahoo beta I ...
6
votes
2answers
282 views

Why is this stochastic integral a martingale?

Suppose that: $W^*_t$ is a Wiener process under probability measure $\mathbb{P}^*$ and; $\tilde{S}_t=S_0+\sigma\int_{0}^{t}S(u)dW^*_s$. In my lecture notes, it says that $\tilde{S}_t$ is a ...
5
votes
2answers
153 views

Portfolio Optimization to include ALL Securities?

I'm currently optimizing portfolio weights for an investment team with N stocks. We buy stocks with a conviction it will generate a return and it is up to me to determine weighting. However, with ...

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