# All Questions

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### Parametric VaR of a portfolio including a swap

I am calcualting the parametric VaR of a portfolio that includes among other things an IRS swap that begins in the exact same day the valuation is done. Therefore, its NPV is 0 and I do not which ...
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### What is a good statistical test on stock prices to indicate a company's value has changed?

My current test is to take monthly proportional price changes for stock XYZ and subtract out the proportional changes of the S&P500. Then compare the mean of a sample of XYZ-S&P (e.g. trailing ...
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### How do most arbitrage opportunities account for unknown volume at a ticker price?

So, from a conceptual level, arbitrage seems quite forward... buy at one place at one price, and sell somewhere at a higher price. However, after doing some initial digging it appears to be not quite ...
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### ES not elicitable

Expected Shortfall is not elicitable as some papers have pointed out. That simply means that there is no scoring function that elicits ES. My question is, does this imply that Expected Shortfall ...
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### Difference between CRSP equal weighted and composite index

I am a bit confused about the overall CRSP total market return index and the equal weighted index. I know that the value weighted index places a weight on each firm by their respective market values ...
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### Potential Arbitrage profit or proof problem

So the question asks: Consider 4 following European call and put options with the same maturity time: Call option with strike price $100$ sell for $45$ Call option with strike price $110$ sell for ...
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### In May of 2005, several large hedge funds had speculative positions in CDO tranches

These hedge funds were forced into bankruptcy. This was due to: the correct answer is: Long Mezzanine and Short Equity Tranche position when correlation of Mezzanine tranche decreased. Can anyone ...
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### Las vegas method?

In one of his winning paper, backward induction for future values, A. Antonov, quant of the year 2016, refer to the American Monte-Carlo method as the Las Vegas method. Is this name used appart from ...
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### What I find if I bootstrap a binary logistic regression?

I want to describe the direction of some stock returns, using as predictors several independent variables which are uncorrelated. The relation in which I am interested is between the stock returns and ...
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### Does the FF 3-Factor model work with unadjusted prices?

I am trying to investigate some trading strategies based on the Fama French 3-factor model, for which I assumed I need to use adjusted prices to account for dividends and splits. However, my ...
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### Embedding the naive portfolio into economic decision theory

I am trying to gain some insights about the vast literature of portfolio optimization and I hope to get some help when it comes to embed the most standard allocation strategies into a coherent ...
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### To calculate shift in the shifted lognormal model

I tried to calculate the shift for CHF interest rates (tenors with negative rates) using MLE, but as the shift is increased the MLE value increases(or decreases depending on whether positive or ...
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### How do I automatically graph S&P PE ratio moving average VS DOW

Obviously this is a rookie question, I'm simply looking to plot the S&P PE ratio moving averages over different periods of time and plot them vs the DOW. Ideally I would love like something that ...
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### Euler discretization bias, heston model

I am performing option pricing using Heston model and Euler discretization. I'm getting the following result: ...
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### find the qth lower tail quantile

I have daily currency returns. For each month, I have to find the return associated to the 5% lower tail quantile for each currency (the lowest return or the second lowest return). Could you please ...
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### Inverse Smile Volatility Ibex35

I was analysing ibex implied volatility and when I draw it I found it was reversed: X axis are the strikes and Y axis implied volatilities calculated by BS. The blue line is the spot price. Data ...
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### how to specify given model on Eviews?

I am still struggling to estimate my model on Eviews. I know it should be really simplistic to do it,but without in depth Eviews knowledge it can be rather tricky. For instance, looking at the ...
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### Higher moments arbitrage

Is there concrete evidence that statistical arbitrage (historical vs. implied) on higher moments, specifically skewness and kurtosis, can be (significantly) done? Working from this source, the author ...