# All Questions

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I would like to understand better the $n^{th}$ to default pair spreads of a basket default swap containing $m>n$ entities. For example, consider 2 single name CDS's with same spread and same ...
18 views

### Non-overlapping ranges of HCNN' observables and of state transition function

In the artcicle Forecasting and Trading the High-Low Range of Stocks and ETFs with Neural Networks HCNN is used for forecasting of nine time-series, namely: returns of the lows returns of the highs ...
84 views

### Implied Volatility Calculation for Deep In The Money Calls, Numerical Issues

I have two implementations for finding the implied volatility under Black-Scholes formula. One is bisection and the other is brent's method. (I know Newton-Raphson is popular due to speed and will ...
358 views

### Null and Alternative hypothesis for multiple linear regression

I have 1 dependent variable and 3 independent variables. I run multiple regression, and find that the p value for one of the independent variables is higher than 0.05 (95% is my confidence level). I ...
56 views

### How to value an expansion option?

Fair warning this is help with homework. I am not asking for an answer but some guidance or a formula would be nice. I have absolutely no background in finance and this class is online with no ...
98 views

### R TTR/RSI does not behave like a Bloomberg RSI

The implementation of TTR:RSI differs slightly from the RSI calculated in Bloomberg, see more details here. I use in TTR the SMA, which simply calculates the mean, that is a walking window of: ...
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### How does implied volatility of puts relate to strike price in presence of negative news? [duplicate]

There is a lot of literature available but i don't kind understand that if there is a negative news about a stock with the traders why do puts with lower strike tend to have higher implied volatility ...
50 views

### Swapping expectation operator with differential operator

Suppose I have a general SDE $dx_{t} = \mu dt + \sigma dz_{t}$ Then I can put $E[]$ on both sides to get $E[dx_{t}] = E[\mu dt] + E[\sigma dz_{t}]$ Now comes the question: I've seen some formulas ...
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### Ratios to determine company's current purchasing power

what are the parameters which will affect a company's ability to buy a new product or service based on its current financial situation. I found many ratios but I need specific metrics or ratios which ...
93 views

### What are the parameters of the function PORTVAR in Matlab?

According to the Matlab help, Portvar will give the "Variance for portfolio of assets" by entering the returns of the Assets and the corresponding weight. However, it does not explain the parameters ...
148 views

### Countries and/or exchanges which don't allow algo-trading

I am doing a research paper on the effect of algo-trading on capital markets. In order to do this, I plan to do an OLS comparison of Countries and Exchanges who ban algo-trading platforms and those ...
22 views

### Immunising pension liability due in 4y?

Help required please on calculating the amount of Zero Coupon Bonds and annuity bonds that are needed to immunise a portfolio against interest rate risk, for a pension fund that expects to pay £500bn ...
123 views

### How to obtain a log of all trades done on the Nasdaq or other major US exchange?

I'm looking to do a research paper on the impact of high frequency algo-trading on individual firms. In order to do that I need to be able to determine firms that have been high frequency traded. My ...
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### Using the R package “ termstrc ”

I am attempting to use the function estim_nss from the termstrc package in R. However, I am experiencing the following error: ...
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### How to find the best fitting GARCH model for a portfolio composed of 3 ETFs in R?

I am doing a project for my class Financial Time Series in which I am trying to forecast my portfolio log returns using a GARCH fit. I am having a bit of trouble determining the best way to fit this ...
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### Transaction Costs Measure ATOP: What does it mean and exactly measure?

I went through some presentations about LowVol strategies for some indices. In the presentations were tables with average returns, vola, Sharp ratio and ATOP. I have no clue what this ATOP is supposed ...
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: ...
42 views

### Which anomalies are easy to replicate in an event study?

In order to examine different approaches to event studies, I am looking for a market anomaly which is simple to replicate in an event study for demonstration purposes. For example, ...