# Tagged Questions

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### Step By Step method to calculating VaR using MonteCarlo Simulations

In trying to find VaR for 5 financial assets with prices over a long period of time(2000 days worth of data) how would I do the following: Carry out monte-carlo simulation in order to find a VaR ...
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### The Relation Between the Ricci flow and the Black-Scholes-Merton Equation

Grisha Perelman once wrote that The Ricci-flow equation, a type of heat equation, is a distant relative of the Black-Scholes equation that bond traders around the world use to price stock and ...
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### Is it possible to download stock-data countrywise with quantmod package for R?

Is it possible to download stock-data countrywise with quantmod package for R ? Hi, I'm wondering if it's possible to download equities countrywise. Let's say i want all data from the Finnish market....
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### Models crumbling down due to negative (nominal) interest rates

Given that the negative interest rates on a lot of sovereign bonds with maturity under 10 years are trading in the negative (nominal) interest rate territory (recently also the short term EURIBOR has ...
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### portfolio optimization with a loop

I am attempting to minimize the variance of a 3 stock portfolio using optimization within a loop. What I have done is calculated the stock returns and cov matrix from dates 1980-01-01 to 1989-12-31 ...
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### Which version of NAICS code is used in CRSP and Compustat?

Is the NAICS code used in CRSP and Compustat always the latest one? If yes, then it means, by this year, they should be using NAICS code 2012 revision. I have some external data which is only using ...
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### Book Value of Equity

I want to calculate Book equity to market equity ratio. Market equity can be calulated by multiplying number of shares outstanding with price of share. Now as far as Book values of equity is ...
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### Calculating returns when number of securities in a timeseries varies over time?

I have a timeseries of security returns in which the number of securities in the timeseries varies over time. More specifically, I have a universe of events where securities(their returns) are added ...
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### How to solve this system of ODEs?

Im trying to replicate the procedure of the Hackbarth et al. 2006 paper. Im trying to solve the ODEs (12) and (13) on page 525 in the paper, following the solution by the authors given in appendix A. ...
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### Risky securities combining with risky free security problem

So the question asks : (1a) Given risk/standard deviation ˜σ = 1.5, ﬁnd the corresponding expected return ˜µ on the eﬃcient frontier. (2a) In addtion to the three risky securities therein, assume ...
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### Risk-neutral probabilities

I will use this theorem 3.2 from the book "Quantitative modeling of Derivative Securities" by Marco Avellandea: Theorem 3.2 - Assume that there is no arbitrage, i.e. there exists a risk neutral ...
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### Academic definition of portfolio turnover

I'm looking for an academic reference on how compute the standard portfolio turnover used in finance. I found a definition by Barroso and Santa-Clara, however their definition is based on both the ...
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### Find all possible permutations of asset weights in a given portfolio?

I need to find all possible asset weight combinations for an 8 asset portfolio. Each weight is a multiple of 10 (0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1) Some assets can be weighted with ...
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### What do you think of refining and testing your strategy over the same period

What do you think of refining and testing your trading strategy over the same 2 years? Is it good to do this, or is it not?
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### where can I get the intraday data for S&P 500

I am trying to analysis the price of S&P 500 during the flash crash in 2010. Where can I get the data?
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### Overstating Interest Rates?

I'm fact checking my analysis, so there's only one possible answer in that I'm either right or way out in left field (wrong). A friend of mine mentioned this bitcoin lending site and I looked at it ...
Consider a consol bond, i.e. a bond which will forever pay one unit of cash at $t = 1, 2, . . ..$ Suppose that the market yield $y$ is constant for all maturities. (a) Compute the price, at $t = 0$, ...