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How is option pricing related to the correlation between implied volatlity and the underlying?

The correlation between the index returns (e.g SPX) and its changes in option-impled volatility (e.g. VIX), is strong, stable and negative (the implied volatility feedback effect). To me at least, it ...
Mats Lind's user avatar
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3 votes
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Polynomial interpolation of corrected lognormal distribution

Can anyone provide a formula for a polynomial interpolation of the corrected lognormal distribution used to model returns traditionally resulting from the wrong Brownian motion generated model? ...
Jack Maddington's user avatar
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Characterizing relation " has no less information than" between information systems represented by Markovian matrices

I crossposted this question on math.stackexchange. Background: Suppose that an investor's utility is both determined by the state and her action taken. A fact of life is that she can't observe the ...
Bender's user avatar
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Correlation between idiosyncratic residuals and forward returns

The classic mean-reversion strategy is to calculate an "expected return" (alpha) by computing the raw return for each security and then remove the part which you think is market driven. Statistically ...
statquant's user avatar
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2 votes
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Expected returns and Fama-French Factor Model

It is my understanding that for any given stock, the sample mean of historical returns is not a good proxy for the stock's expected return. In fact, the return on a stock needs to be estimated via ...
John Paris's user avatar
2 votes
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A Bayesian-Stein based expected return estimator by J.P. Morgan

Please consider the following estimator for the expected returns specified in the paper "Improving on risk parity: Hedging forecast uncertainty" by Peter Rappoport, J.P. Morgan, October 2012....
Nipper's user avatar
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Are there any studies on the link between energy markets and hedging-strategies for Cryptocurrency mining?

Full Disclaimer: I first asked this question on Bitcoin.SE, however I feel like my question is more relevant to this site as there would be wider knowledge and insight of some better sources or ...
Hamish Gibson's user avatar
2 votes
1 answer
115 views

Is it possible to calculate the equity required (or expected) return using Black-Scholes option pricing model?

I know the method of calculating the equity value as a European call option (using Black-scholes formula). My question is: Is it possible to calculate the expected (or required) return of equity when ...
Saeed Fathi's user avatar
1 vote
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73 views

Issue in Fama-French 3 factors Model

I hope you are doing well. As part of my thesis, I built 12 portfolios of 200 randomly selected stocks. I now want to calculate the Bs of the 3 Fama French factors for each stock, so that I can ...
Sky-Jays's user avatar
1 vote
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85 views

Calculating CDO pay-off

Background I got a model for the distance-to-default of an instution in a system of banks from the paper "An SPDE model for systemic risk with endogeneous contagion". Therein they postulated ...
Leoncino's user avatar
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Black Litterman - numerical instability

I am trying to work out the formula for the posterior mean in Black Litterman's model assuming 100% confidence : Ref: https://corporate.morningstar.com/ib/documents/MethodologyDocuments/IBBAssociates/...
natt010's user avatar
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Cross-sectional Regression: Using calculated coefficient of first regression for a second regression as dependent variable

Hello stackexchange community! I am new to R and econometrics and and stuck in a step of the fama-macbeth (1973) regression, in which risk premia of stocks are estimated with a two-step regression ...
dealo's user avatar
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Expected daily range (SPX) and daily realized range

I'm new in quant math, I'm self-studying it. I have two question in exp. daily range topic. How can we make the possibly most accurate estimation for expected daily ranges? My idea was to take data ...
c.m.'s user avatar
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Find expected rate of return without drift based on ito process

I would like to know how to solve question (ii), I know it is a cash-or-nothing option but I have no idea how to get the expected rate of return even I use put-call parity. Could anybody guide me I ...
Jun's user avatar
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Power-utility function for calculating Certainty equivalent

I have a question regarding how i should calculate 3.2-3.4, currently studying for an exam. What i don't get is how to acctually derive the certainty equivalent from the expected utility of gross ...
Jens's user avatar
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Determine expected geometric return from Sharpe ratio

I'm trying to calculate the expected annual geometric return, given that I'm provided with an annual Sharpe ratio (0.5), the yield on a 3-month T-Bill (5%) (using this yield as a proxy for the risk-...
Ringleader's user avatar
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If investors are risk-neutral, should the (equity) risk premium be zero?

I looked up ChatGPT and they stated that the (equity) risk premium should be zero for a risk-neutral world. The definition of a risk-neutral investor is that one is indifferent between additional or ...
KaiSqDist's user avatar
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Multiple models for one single wallet

I am an algorithm day trader. I am trying to automate certain patterns on the stock markets. Here is my question. Suppose I have $n$ models $M_1, M_2, M_3, \dots, M_n$ with expected return $E_1, E_2, ...
David's user avatar
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Maximum expected return portfolio: Lagrangean derivation of closed-form analytical solution

\begin{align} \arg \min_w \enspace & -w^\top \mu \\ \mathrm{s.t.} \enspace & 1_N^\top w = 1 \\ & w_i \geq 0 \enspace \forall i=1,\dots, N \end{align} is the optimization problem for ...
develarist's user avatar
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Deriving Single Index Model (Market Model)

$R_{it}=\alpha_i+\beta_i\cdot R_{mkt}+\epsilon_{it}$ $R_{it}$ is the return of the stock of observation $R_{mkt}$ is the return of the reference market $\beta_i$ is the regression coefficient between ...
Nipper's user avatar
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Are the explanatory factors for a firm's expected returns and its expected earnings/valuation multiples the same?

For example, the 3 factor Fama French model explains much of the cross-sectional variation in equity returns. Would these same 3 factors also explain the cross sectional variation in earnings/EV to ...
beeba's user avatar
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38 views

Variance Equations is missing definition

here: https://www.nrc.gov/docs/ML1208/ML12088A329.pdf Campbell, Lo, Mackinlay: The Econometrics of Financial Markets on page 159 i am looking at equation 4.4.9 in the last line, = $I\sigma_{\...
user3022875's user avatar
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what is a reasonable beta in CAPM?

I want to predict expected returns for assets using a CAPM, to calculate unexpected (unpredictable, idiosyncratic, non-systemic) returns in portfolios. My CAPM estimated on monthly total gross ...
László's user avatar
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