All Questions

0
votes
0answers
9 views

How to interpret the (expected) exposure and CVA of an option or a single share

I have a quick (hopefully simple) question regarding the interpretation of the expected exposure of a call option and a single share. I've done some computations on the formula for the expected ...
0
votes
0answers
21 views

Using securities finance transactions to facilitate short positions

The typical way to take a short position would be to borrow the security (facilitated by a custodian/prime broker). How can one use securities finance transactions to facilitate short positions (...
0
votes
0answers
19 views

Free dividend data API for non-US stocks

Is there are any free API for dividend data that does also include non-US stocks? I know of this question from three years ago. However, the situation has changed since then apparently, as there are ...
0
votes
1answer
47 views

How would one sell a security that they don't own? [on hold]

I am reading an article about arbitrage and it gives an example where "If you buy one unit of security B for £11 and sell two units of security A for £6 each you make a profit of £1 at t = 0$. As ...
2
votes
0answers
30 views

Simulating volatility process in the Heston model using the relation between the CIR Process and Ornstein–Uhlenbeck processes

I am trying to simulate the volatility process in the Heston model using the relation between the CIR Process and Ornstein–Uhlenbeck processes. In fact, giving $\mathbf{X}$ a $n$-dimensional vector ...
2
votes
1answer
38 views

Constant Maturity Swap dates and conventions

Let's note $L(t,T_i,T_{i+1})$ the libor rate observed at $t$, fixing at $T_i$ with delivery at $T_{i+1}$. The natural delivery date for this rate is $T_{i+1}$, so a vanilla swap with no pay lag would ...
1
vote
1answer
41 views

In-sample and out-sample backtest performance, how to do this?

I have a strategy in development that I am backtesting to optimize for parameters, a total of N combinations. Trying my best not to overfit. I run the first backtest for the in-sample period and I ...
0
votes
1answer
26 views

Using AlphaVantage For Japan/Shanghai/Hong Kong/Shenzhen stock exchange data?

Can I use AlphaVantage to pull data from Asian stock markets? I've been able to do it for others such as the London stock exchange, India stock exchange, Australian stock exchange etc. but haven't got ...
0
votes
0answers
14 views

How to forecast monthly volatility with daily gjrGarch estimates

I'm currently writing a paper and need to regress the 22 days realized volatility of the following month on its GARCH estimate and the 126days realized volatility up to t=1 The paper im referring to ...
2
votes
0answers
28 views

Black's Approximation - Discrete dividend for Put Options

I am currently trying to price and option chain for dividend paying stocks (american style exercise). I am able to calculate the Net Present Value (NPV) of dividends until maturity and then apply ...
3
votes
0answers
32 views

American Perpetual Put Option

I want to compute the expected payoff of a (classical) perpetual American put option in the Black-Scholes-Merton (BSM) framework with an optimal strategy of exercising the option at time $\tau=\inf\{t:...
2
votes
1answer
32 views

Difference between modelValue from HestonModelHelper and NPV() from VanillaOption

I am trying to calibrate an Heston model and price vanilla option using Quantlib 1.15 and Python 2.7. I use the following code ...
0
votes
0answers
34 views

How is Kalman Filter used to estimate Term structure Models

I am implementing "The Term Structure of Variance Swap Rates and Optimal Variance Swap Investments" . This paper is using kalman filter to estimate the state and the mean variance and a parameters on ...
1
vote
0answers
34 views

Symbol “.” in the derive of Quanto Adjustment

I am reading "Analysis, Geometry and Modeling in Finance". In section 2.10.2 which derives the quanto adjustment, it states that (in page 46) by definition the process $S_t^{d/f}S_t^f$ is the foreign ...
1
vote
2answers
98 views

How to create a volatile market, by combining less volatile markets?

This might be against the law of gravity, but I'll give a try 🙂 Is there a way to combine two financial products $p_1$ and $p_2$, into a single product $p_c$ that is more volatile than its ...
1
vote
1answer
69 views

exponential weighting on volatility

I am trying to apply a volatility strategy. I am reading a paper where the authors defined the volatility as: "Exponential Weighted Volatility of returns with a 1-year window and 3-month half-life" ...
0
votes
0answers
31 views

Choquet integral risk measure

I have one question that cannot fully understand why. What is the definition of the Choquet integral risk measure?
1
vote
1answer
35 views

Max allowable return in Markowitz model

The Markowitz model solves the following problem: The portfolio with the smallest variance among attainable portfolios with expected return µV. Here we have to choose µV to get the optimal portfolio ...
0
votes
1answer
50 views

Why do we need to borrow money in the call-put parity? [on hold]

As I understand it, the call put parity is given by $$c = p + S - \frac{X}{(1 + r)^T}$$ I understand the rationale behind simultaneously buying the call, put and underlying asset for $S$, but why ...
1
vote
2answers
79 views

Reference on Futures basis trading strategy

I have heard that it is possible to trade on the futures basis. In my understanding, the futures basis is essentially the difference between the futures price and the underlying asset (also referred ...
0
votes
0answers
25 views

Strange results in Fama-Macbeth regression estimates

I am reading the paper Chordia, Tarun and Subrahmanyam, Avanidhar and Anshuman, V. Ravi, Trading Activity and Expected Stock Returns (Undated). Available at SSRN: https://ssrn.com/abstract=204488 or ...
0
votes
0answers
47 views

Difference between characteristic function and Fourier transform

I'm struggling to understand the difference between this two functions. I have this condition: $P_j:=\mathbb{Q}(S_T>K):=\frac{1}{2}+\frac{1}{\pi}\int_{0}^{+\infty}Re[\frac{e^{iuK}f_j(u,x,v)}{iu}]\...
3
votes
1answer
82 views

What is upper left vol?

First time question, so please let me know if you have feedback for how I am asking. I am reading a market research piece and it makes reference to the performance of "vol, particularly the upper ...
2
votes
0answers
29 views

Simulating from a multivariate clayton copula

I am recently into copulas for finance, I've read several examples of how to generate dependent random variables with most kind of copulas. The problem for me is that all the books describe the case ...
3
votes
2answers
51 views

Interest Rate Assumption (Ornstein - Uhlenbeck Process)

Why can we assume that interest rate is stationary (identically distributed), Gaussian (has multivariate normal distribution), Markovian (the future is determined only by the present), and continous ...
0
votes
0answers
20 views

One-day Binary Event Implied Moves

What is the convention for pricing the expected 1-day move of a binary event based off of the implied volatility of the nearest series which contains that event? How do you distinguish between the ...
1
vote
0answers
35 views

Discounted self-financing portfolio still a self-financing portfolio?

Assume a self-financing portfolio $V_{t}=\theta_{t}^{0}S_{t}^{0}+\theta_{t}S_{t}$ with $S_{t}^{0}$ the value of the non-risky asset at time $t$ and $\theta_{t}^{0}$ the amount of shares of the non-...
1
vote
0answers
26 views

Has there been studies done on changes in model performance post-crisis?

My question is, has there been done any studies on whether the efficiency and accuracy of pricing and risk-management of derivatives using different models and algorithms has changed after the ...
0
votes
0answers
43 views

CDS Quote Conversion - Quoted vs Par

Just to be on the same page, let me start with some nomenclature: Par Spread = Coupon for which the CDS has NPV=0, assuming a piece-wise constant hazard curve (considered in conjunction with all ...
0
votes
2answers
83 views

From Libor Curve rates to “forward” zero-coupons

I am provided a 6M euribor curve, constructed from FRA's and swaps of tenor 6M on the euro, as well an EONIA curve, constructed from zero-coupons EONIA swaps. Both curves are provided as functions $d\...
2
votes
1answer
25 views

Multi-factor vs Single-factor interest rate model for XVA / CCR

When calculating XVA or Counterparty Credit Risk (CCR), you can choose to simulate your interest rate with a Multi-factor interest rate model or a Single-factor interest rate model. What are the pros ...
0
votes
0answers
17 views

TurnbullWakemanAsianApproxOption function in R not very clear to me - tau

I would like to price an Asian Call Option with 0 carry using the formula by Turnbull and Wakeman in the book of Haug. I found a package in R, fOptions, that has ...
0
votes
2answers
76 views

Geometric Sharpe ratio

I'm computing different metrics for mutual fund performance. I want to use classic Sharpe ratio, but I also got to know there is geometric Sharpe ratio. Unfortunately I didn't find enough info about ...
0
votes
0answers
24 views

why we seldom see application of copula-garch model in macroeconomic

I find a lot of reference about copula-garch in finance market,but it seems that articles about copula-garch model in macroeconomic are rare.Is there any instrinc problem when it comes to ...
0
votes
0answers
17 views

Rescaled range analysis results in Hurst exponent close to 1 for Brownian motion

I am trying to use the the RS analysis method to estimate the Hurst exponent of a time series. Bellow i am posting my python implementation of the RS analysis. ...
0
votes
0answers
43 views

What is the basis for the ansatz here? [duplicate]

I'm reposting this question: Jim Gatheral's ansatz I have the same question, but the answer given in the comment is no longer applicable since the link does not work.
0
votes
0answers
36 views

Option Prices on Thomson Reuters Eikon Database

I would like to get hist. option prices from Eikon. I am not looking for the entire option chain and I was wondering if Eikon offers average data/prices. Average European call and put option prices ...
0
votes
0answers
37 views

Why doesn't tenor of Euribor index change spot rate in Quantlib?

I'm trying to create a yield curve in QuantLib based on swap rates. The swap rates I'm using have a 6 months fixed frequency and a 3 month float frequency based on LIBOR. What I don't understand is ...
1
vote
1answer
73 views

Pricing structured products (Mortgage Backed Securities) [on hold]

What would someone have to do to be able to price a structured product like Mortgage/Asset Backed Securities?
0
votes
0answers
51 views

Yield Curve Flattening Trade

Relatively simple question, but came upon it in class and have not been able to come up with an answer: The two-year bond yield is equal to 4% while the 10-year one is equal to 10%. You want to put ...
0
votes
0answers
51 views

Practical Skew Model For Equity Options?

I'm looking for a simple model I can use to calibrate equity implied volatility surface. There are several models published in the literature, and most of them seem far too sophisticated for my ...
0
votes
0answers
36 views

Dependence modelling in Finance

we have copula as a function of cdf of random variables to describe how they are related to each other. I have one question in my mind that, how can we generate a new copula function?
5
votes
1answer
93 views

How frequently is local volatility calibrated to implied vol surface, in practice?

This has two related questions - How frequently do equity derivative traders re-mark the implied volatility surface - (i) once a day (e.g. at start of trading day, or end-of-day), or (ii) ...
0
votes
1answer
50 views

How to add annualized quarterly returns? [on hold]

I have four quarterly returns that have all been annualized. How do I calculate the annualized return for the year from these values? Or do I need to back into them to get the holding period returns
1
vote
0answers
48 views

How would one go about pricing a FX future?

What model/equations would I require to calculate the price for a foreign exchange future? This is in an attempt to mitigate foreign exchange risk. Also, how could one measure a business's exposure to ...
0
votes
0answers
25 views

high quality daily data [duplicate]

I am analysing some trading strategies, so lots of high quality data is needed. I have been using yahoo finance which provides a lot of high quality daily data on stocks and indices. Currently I am ...
2
votes
0answers
41 views

Hull White Equation Derivation

Hello I need your help. I found the formula for deriving $A(t,T)$ and $B(t,T)$ in Hull White paper is like this $BB_{tT} - B_{t}B_{T} - B_{T} = 0$ and $ABA_{tT} - BA_{t}A_{T} - AA_{t}B_{T} + \frac{1}...
-4
votes
0answers
57 views

What does this formula in Jim Gatheral's book mean?

From Jim Gatheral's "The Volatility Surface", on page 11 he introduces a formula (formula (1.7) at the bottom). Is he talking about the "future value of the option"? I do not understand the "future ...
1
vote
1answer
52 views

American Put Option Pricing

I am trying to solve a question of American Put Option pricing as below. Build a 15-period binomial model whose parameters should be calibrated to a Black-Scholes geometric Brownian motion model with:...
1
vote
0answers
41 views

Proof standard Brownian Motion under change of measure

Let's split the usual time horizon $[0,T]$ like $0=T_{0}<T_{1}<\dots<T_{n}=T$ and consider the bond price $P(t,T_{i})$ for $i=1,...,n$. We assume $$\frac{dP(t,T_{i})}{P(t,_{i})}=r_{t}dt+\xi_{...

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