# All Questions

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### Performance of 1X0/X0 funds vs. traditional benchmarks?

Some years ago there was a proliferation of new products touting the ability of active managers to take short bets on securities: 130/30 funds, 150/50 funds, and the like. What is the empirical ...
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### Shrinkage Estimator giving unrealistic portfolio variances

I have a historical covariance matrix which is invertible for daily and monthly returns. I used the Ledoit,Wolf shrinkage estimator for the covariance matrix and now I get really small portfolio ...
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### The calculation of NIBID rate from 2013 by using NIBOR rate (UIP)

I need to calculate the NIBID rates from 2013. I have the NIBOR as a starting point and some indications but I am still quite confused. I found some advices online, but it does not seem to get me the ...
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### GARCH estimation does not work, error in my returns?

Hey everyone and I hope that there are some smarter people out here that can help me out with my problem...: I have trouble with my implementation of a GARCH(1,1) model and I do not know how to move ...
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### Return.portfolio error from PerformanceAnalytics package

When using the PerformanceAnalytics package of R, I am getting an error from the Return.portfolio function whenever I ask it to rebalance_on any frequency. If the rebalance parameter is removed, the ...
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### optimal look back period for cointegration analysis on daily prices

I'm running some cointegration tests on 2 stock pairs and was wondering, generally speaking, what would be the optimal look back period to test considering I am using daily prices and the average ...
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### Examples for the option model validation

When implementing a code for the new model, even if it provides sensible price, it is still a good idea to compare it against some benchmarks, even in the special case of constant volatility ...
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### predict next day's close price using hmm

I am reading this paper(Stock market forecasting using hidden Markov model: a new approach) and get confused about how they predict the next day's close price. Below is what the authors say about how ...
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### Calculate Forward Rate under CIP - differs from qouted rates, why?

Hello everyone out there, I am quite new here, but hope you are helping me out, nevertheless. By assuming that we have CIP I want to calculate the 3M Forward rate for EURUSD. I use the known formula ...
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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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### Can a large OpenInt of calls cause a stock to go down?

I read forum post from another site. Which stated... ...
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### NZX market depth data

Can someone point into the right direction for NZX market depth data specifically for individuals? I have tried many vendors but seem to be coming up with "institution-only" responses.
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### coefficient of determination of an autocorrelation

Ok this is a very quick question, the Coefficient of Determination (power(R;2)) of a simple Pearson Correlation value (r) can be interpreted as the percentage of the total variation in Y that can be ...
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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 ...
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### Poor investment preformance in early years impacting on final fund value

I am currently doing some work on the performance of funds across different models of the economy. I am trying to find some work that looks at the impact of poor/lower returns at the early years of ...
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### Is there a limit to the number of Spot rates than can be calculated from Par Yields

I am just trying to calculate Spot Rates from Par yields. I find that the code below gives very similar spot rates for the data here, yet if I increase the size of the ...
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### Is there a considered floor for variation the 1st principal component must explain?

I am wondering if there is a considered floor to the percentage variation the 1st principal component must explain in general for PCA - ie. any lower and it is not worth doing PCA at all? Is the floor ...
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### Influencing factors on credit

There was the following question on an exam: Which factors are influencing the effective interest rate of a credit? loan amount fees interest rate running time I would have said ...
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### Ledoit-Wolf portfolio weights calculation

I am trying to implement the Ledoit-Wolf minimum variance portfolio strategy on a real-world stock dataset. ...
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### Estimate volatility in forecast

I have a model with a rolling forecast. In each time step $t$, I predict the price for the next periods, e.g. $\hat{p}(t, t+1)$ and $\hat{p}(t, t+2)$. If I start in $t=0$ and arrive at $t=2$, I ...
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### calibration of Gaussian two factor short rate model

I am trying to calibrate the gaussian two factor short rate model whose dynamics is given by r(t)=x(t)+y(t)+phi(t) Now to calibrate the model to term structure ...
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### Merton Jump Diffusion Model: Influence of lambda

I use Monte Carlo to simulate sample paths of Merton's jump diffusin model. By plotting a histogram of the log returns and using kerneldensity to approximate the density function I try to look at the ...
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### How difficult/easy it is to migrate from CME FAST to CME MDP3.0?

Has anyone gone through this migration? Just wanted to have an idea of the amount of effort required.
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### Consumption Based Asset Pricing

I am working on some consumption based asset pricing models. I am modelling consumption growth in several different ways. An obvious one is to model consumption growth as an AR(1) process: \$g_{t+1} = ...
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### Issues with +100 symbols in Quantstrat, Erratic Trades

I've tested my code against individual symbols and very small groups of symbols. I'm finding the more symbols I add the fewer trades I get. For instance, if I just include the first five symbols, all ...