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21 views

How to interpret a value stock with 0 beta to HML portfolio

I am unsure of how to interpret stocks that have a low P/b but have a low beta when regressed onto the HML portfolio. Conversely, I have found stocks that are not cheap but have a high beta to HML ...
0
votes
1answer
38 views

Historical volatility calculation to price options with the Black-Scholes formula

I'm looking for a reference algorithm for calculating historical volatility to price options. I know there are several volatility calculation models that use the time series of the underlying's ...
0
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2answers
67 views

Are there volatility models dependent on returns?

When I look at the relationship between volatility and price, I see a clear negative correlation as shown in this figure (SPY and VIX prices today looking back 1 year). The common volatility models (...
0
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0answers
36 views

how can I get the P-value and simulate the vasicek model in Excel?

I use the solver in Excel to estimate the parameter, the out put is b=0.001153,a=0.095516,sigma=0.0013. I follow the steps at https://www.youtube.com/watch?v=X17cpkkwG_4 The method is the Maximium ...
0
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0answers
30 views

Do daily returns from a distribution with skew and/or kurtosis lead to options implied volatility skew?

I've been trying to price a call option using a Monte Carlo approach with the specific goal of showing implied volatility skew. I'm using the sinh-arcsinh transformation to make the random numbers I ...
2
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0answers
121 views

Pricing American Options by Neural Networks

Has anyone read the paper 'Pricing of High-Dimensional American Options by Neural Networks' by M. Kohler et al. (2010) and tried to program the proposed method in Python? I have been trying that for ...
0
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0answers
20 views

Which optimality criteria should be used to determine state sequences in HMM?

There are several criteria to determine state sequences in HMM. For example, most possible state for each individual observation, and most possible sequence. Which one should I use to get average ...
0
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0answers
39 views

How to estimate the parameters of vasicek modle in R or Excel?

Thank you in advance. I use the yield to maturity of 2year, 3year, 5year and 7year japan government bond from 1989-2019 as my data (i.e. the name of my data is ...
0
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0answers
38 views

How difficult is it for a private company to compute their own market cap?

I've read this question: How do I value a private company's market cap? Assume: "market cap" = outstanding shares * price per share. Right now, I'm trying to outline a license for some software ...
0
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0answers
18 views

variation in portfolio vs systematic risk

I am currently studying about the CAPM, and I stumbled upon something that I can see is different, but i can't make the distinction. This isn't some mathematical question per se, but I hope that you ...
1
vote
1answer
98 views

Using the call option to solve this linear program

Hello I have to do a project for a finance class and the Professor has given us the following problem. I'm not a finance student and am just now being introduced to the subject. I do not understand ...
1
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0answers
19 views

Asset risk relative to market portfolio risk - derivation problem

I am currently studying the CAPM, and at the moment I am focusing on beta. I am using the following book: Danthine, J-P and J. B. Donaldson (2014): Intermediate Financial Theory (3rd Edition) http://...
8
votes
1answer
219 views

Forget Kelly, forget fractional sizing. Where is the general theory?

I am struggling to find a general theory of position sizing. Help! The literature is all about fractional position sizing, but that's just one of the innumerable strategies. What about all the other ...
0
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1answer
61 views

Optimization with turnover constraint

I am optimizing using scipy.optimize using SLSQP. I am looking to minimize the variance with some upper bounds and lower bounds on each stock. I am also looking to constraint the weight so that the ...
0
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0answers
29 views

How to mathematically calculate the probability of GBM generating difference of less than some value

I have a custom index that follows Geometric Brownian Motion (GBM) with volatility v. I started this index at 10k with 4 decimal places i.e the starting price of ...
0
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0answers
15 views

Future wealth calculation with investment

Task: The student is 25 years old now. He say, that next year his salary will be 15000€ per year. His salary will grow +5% each year until his pension (when he will be 65 years old). Calculate how ...
0
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0answers
14 views

Term for manipulating revenue allocation?

I am trying to remember the term for when revenue allocation is essentially manipulated. Example: An organization receives a grant that restricts its use. The organization allocates this fund for ...
0
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0answers
25 views

Equity finance and primary brokerage and their products

I was in the project working on the asset classes known as EF/PB, which is short for Equity Fiance / Primary brokerage, I understand that Equity finance is more or less about securities lending, and ...
2
votes
1answer
90 views

How To Understand the Drift of ln(S) if S Follows Geometric Brownian Motion

As we know, if an asset S follows geometric Brownian motion, under risk neutral measure, it can be expressed as $\frac{dS}{S}=rdt+\sigma dW$, by applying Ito's lemma, $d(lnS)=(r-0.5*σ^2)dt+σdW(t)$, ...
0
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0answers
26 views

Replication of the paper: “A Comprehensive Look at the Empirical Performance of Equity Premium Prediction”

I recently replicated the paper "A Comprehensive Look at the Empirical Performance of Equity Premium Prediction" and found out that my estimation of the equity premium differs from the data provided ...
0
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0answers
18 views

Federal Funds Futures for monetary policy surprise measurement

How one uses Federal Funds Futures for monetary policy surprise measurement. What assumptions does one need to make? Is the calculation using OIS the same?
0
votes
1answer
30 views

Question is about the data in the paper: “A Comprehensive Look at The Empirical Performance of Equity Premium Prediction”

I would like to ask a question if you download the data from the Amit Goyal website: http://www.hec.unil.ch/agoyal/ You will see that there are two columns "CRSP_SPvw" "CRSP_SPvwx", they are ...
0
votes
2answers
61 views

Interest rate calculation [closed]

The task: With what interest rate given 2000 Euros after 2 years and 3000 Euros after 4 years, the actual value will be equal 4000 Euros. This task sounds confusing for me, I tried to calculate, but ...
0
votes
1answer
61 views

Two commodities which are normal distributed and perfectly correlated

The daily price change in commodity 1 is distributed $N(0,0.15^2)$ and the daily price change in commodity 2 is distributed $N(0,0.3^2)$. The two commodities are 100% correlated. 1) Does the relative ...
1
vote
1answer
43 views

Quantlib specify contract duration instead of dates

I use the following code in Python to price American put/call options. It's simple code since I'm new to using Quantlib. I would like to specify the contract duration (i.e. ...
1
vote
0answers
42 views

Error in optimize.portfolio with transaction costs constraint

I am experimenting with the PortfolioAnalytics package to optimize portfolio with dollar neutral and transaction costs as constraints to the quadratic utility objective function. A sample R snippet is ...
3
votes
2answers
726 views

Stock Prices are Lognormal - Formal Definition

I'm struggling with what the exact meaning of "stock prices are lognormal" (and its use to show normality of returns). My assumption was that given ${S_t}$ are stock prices and returns are defined as $...
0
votes
1answer
15 views

Why does changing the evaluationDate multiple times lead to a performance lag?

I am simulating an swaption strategy through time. Following the examples in the Python Quantlib cookbook, as I progress through time I am updating the internal evaluation date ...
0
votes
1answer
38 views

Multi Factor rolling beta

I want to monitor HF/CTA long/short position and calculate beta on different HF indices in Excel/VBA, see graph below. I can't seem to find any papers on "Multi-factor based rolling beta", so my ...
0
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0answers
29 views

Calculation based on tick data of all contracts

In our system, we need to do calculation based on tick data from different contracts. However, in one tick, the timestamp of contracts are slightly different (sometimes big diff, but let's ignore this ...
1
vote
0answers
39 views

Sharpe ratio of strategy exploiting correlations that vary by time interval

The Epps effect "is the phenomenon that the empirical correlation between the returns of two different stocks decreases with the length of the interval for which the price changes are measured" (...
0
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0answers
29 views

Skewness and kurtosis measures when full distribution is not available

I have asked this question here, but did not get any answer. I was wondering if anybody knows a method of deriving skewness and kurtosis measures from different quantiles, mean, and/or variance. I do ...
0
votes
1answer
28 views

How are the notionals on proceeds-weighted bond butterflies calculated?

Most LDI (Liability-Driven Investment) accounts construct bond butterfly (fly) trades by weighting them according to proceeds. This creates two constraints: The fly is duration-neutral (the usual ...
0
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0answers
55 views

Can a publicly known gap trading strategy be profitable and if so why?

Newbie to this field, please forgive any lacking knowledge... There is various literature (example) on trading according to strategies which assume that (in the absence of a large gap, or major news) ...
0
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0answers
30 views

Mean-Variance Optimization - Appropriate to use covariance of daily returns if strategy involves fixed hold of 3 months?

I'm implementing the strategy outlined Quantitative Momentum (Gray & Vogel), which basically involves investing each quarter in a set of "high-quality momentum stocks" for a fixed 3-month hold ...
0
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0answers
33 views

Value premium / HML - Long/short portfolio useful?

I'm currently working on a paper about the value premium. Right now I'm wondering if there's any reason why calculating the long-short portfolio return as a difference between the high B/E portfolio ...
-2
votes
0answers
35 views

R How to import historical commodity prices

I'm looking for an R code that imports historical daily data for all the below commodities: Metals: Gold Palladium Platinum Rhodium Silver Energy: Natural Gas (Henry Hub) Ethanol Heating Oil Coal ...
0
votes
0answers
69 views

Nonlinear dependency between prices

Can you help me with pricing theory? There are three assets: $A$, $B$ and $C$ with prices $P_A$, $P_B$ and $P_C$ respectively. There are two processes (production, transportation, etc.) that ...
0
votes
0answers
45 views

Instability in risks using local volatility

I am valuing vanilla call options using FDM with Crank Nicolson discretization and Rannacher smoothing (mind you, I am having the same issue on MC) and I am getting unstable delta, gamma and theta. I ...
0
votes
1answer
109 views

What's the point of having an accurate option pricing model?

Just curious what's the actual reason of having an accurate option pricing model? For e.g. an option pricing model fits the volatility surface incredibly well, then what? Do practitioners actually use ...
0
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0answers
28 views

How to optimizer alpha signals when the estimated uncertainty of signal is known

Suppose we have the alpha signal $\alpha_i$ for a collection of $N$ stocks $i=1,2,...,N$. Typically, we will use $\alpha_i$ to construct our portfolio as $$ P=\sum_i \alpha_i \cdot S_i $$ with $S_i$ ...
1
vote
0answers
55 views

Sticky strike sticky delta implementation

I'm a clear on the differences between the two assumptions but a bit confused on the practical implementation. 1) The aim of choosing one of the two assumptions is to take into account the co-dynamic ...
0
votes
1answer
81 views

Brownian motion Price and Hedge problem

Let $W_t$ be a Brownian Motion and let $S_t= S_0e^{(rt- \frac{\sigma^2}{3!}t^3 +\int_{0}^{t}\sigma W_s ds )}$ Price and Hedge at time $t=0$ European call with maturity $T$ and strike price $K$, ...
0
votes
1answer
63 views

Greeks, European puts

I'm trying to solve this question but i have a lot of problems with it. European puts with maturity 6 months are written on an asset with current price $S_0=150.$ The annual interest rate is $r=16\%$ ...
0
votes
2answers
249 views

Extrapolation between today and the spot date curve building

I'm trying to build my libor curve using (Deposit, FRAs and Swap) instruments with the goal that my curve match the murex curve, my parameters are : My today date is : 23/10/2019 Start of my deposit ...
0
votes
1answer
53 views

Vasicek Model, zero coupon bond question [closed]

I am trying to solve questions in the Vasicek model. Can anyone help me to solve this question... In the Vasicek model with parameters $\theta = 0.08$, $k$ = 2.5, $\sigma = 0.2$, assuming to be ...
0
votes
1answer
55 views

GARCH Model Estimation with Standard Deviation

I want to examine exchange rate volatility on Stock Returns. Please, if I Generate Exchange rate volatility (ER_vol)using standard deviations approach, can I include the (ER_vol) as a regressor in the ...
0
votes
1answer
25 views

Two Factor Hull White Model Calibrate

I have a question about the optimizer method to calibrate the parameters of two factor hull white model. I have the analytical pricing formula for cap and market cap price. There are five parameters ...
2
votes
1answer
74 views

how does stochastic volatility models generate smiles?

When calibrating call price with the BS-model, we achieve some parameters and especielly we achieve $\sigma^*$. Now, lets say I will price call options using these parameters. Then we achieve, lets ...
0
votes
0answers
47 views

How to implement Modified Sharpe Ratio optimization using PortfolioAnalytics R package?

I am looking at how to implement modified Sharpe ratio optimization using R package PortfolioAnalytics. Modified sharpe ratio defined as MSR = r/(sd^f) (where r is return, sd is standard ...

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