Questions tagged [options]

A contract that gives the owner the right, but not the obligation, to buy or sell a security at a fixed price in the future.

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26 views

Risk neutral valuation : Options on futures derivation

Recently I got a problem. It is derivation of Options on futures formula using Risk Neutral Valuation. First, Futures (Now 'F') have equation that 'F=Sexp^{(r-q)(T-t)} {S = Underlying Asset, q = Asset ...
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38 views

Bachelier Put Option Pricing Formula

Does anybody have the Bachelier model put option pricing formula ? I have tried deriving the formula assuming that $r=0$ and have come up with the following: $$(K-S_0)\Phi \frac{K-S_0}{S_0\sigma\sqrt ...
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1answer
280 views
+100

Bergomi: Skew arbitrage

In his paper "Smile Dynamics IV" (https://www.fields.utoronto.ca/programs/scientific/09-10/finance/derivatives/bergomi.pdf) as well as in his book "Stochastic Volatility Modeling" (...
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281 views

Do Perpetual American Options have closed form functions to compute the Greeks?

I was wondering if there were analytical formulas to compute delta or gamma for perpetual American options?
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64 views

Is there a Dupire's Formula for put options?

Generally, Dupire's formula is taking derivatives on the call option prices. Here it only uses information of the call options. If now we have the data including both call and put options, is there a ...
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1answer
68 views

Option strategy Collar

I've question regarding Collar strategy (long Put with strike $k_1$ and short Call strike $k_2$ and long stock), when calculating the theoretical P&L of the collar for large up movements of the ...
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28 views

Can you explain grid(or lattice) for option pricing, and explicit and implicit finite difference methods in a simple way?

I am a student learning about option pricing. I understand the concept of binomial trees, trinomial trees, black scholes and monte carlo simulation for option pricing. However, I've just had a lecture ...
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1answer
87 views

Monte Carlo simulation for OTM options under stochastic volatility

I'm looking to simulate the stochastic price and volatility process (Heston model) using some form of Euler method for Monte Carlo approximation of option prices. The results that I get are acceptable ...
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73 views
+50

Implementing a replicating strategy from the order book

So I have futures data in an order book (one screenshot every day at 12 p.m. for one month) for various futures products (i.e. various delivery periods such as the next day, the day after and so on) ...
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20 views

Backward difference approximation (BDF-2) for Options

I am working on a project for compound options and the assignment is as following: ...
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53 views

Calculate Value at Risk for floating rate note

Consider a floating rate note: nominal: € 100 000 000 coupon period: annualy remaining time to maturity: 7 years and 3 months The coupon amounts to 3.3%, the current 3M-money market rate amounts to 3....
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48 views

Black and Scholes with Jump diffusion

I don't understand how to pass from this step (only for the Poisson distribution,not the Wiener increment) in the SDE : \begin{eqnarray} d S_t = \mu S_t dt + \sigma S_t dW_t + (J-1) S_t dN(t) \end{...
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476 views

Find a formula for the price of a derivative paying $\max(S_T(S_T-K),0)$

Develop a formula for the price of a derivative paying $$\max(S_T(S_T-K))$$ in the Black Scholes model. Apparently the trick to this question is to compute the expectation under the stock measure. So,...
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33 views

Any resources or literature on interpolation schemes for future dates?

I have a whole stack of the popular option trading/modelling books (Natenburg, Sinclair, Hull, etc.) None of them however address the idea of pricing or modelling values at a point in the "future&...
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1answer
255 views

Where can I get some Inflation Option example quotes (year-on-year and zero-coupon)

I am writing an academic paper on calibration of inflation vanilla options. I need to generate examples for the paper. Is there anywhere I can get example data for the Inflation year-on-year options, ...
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1answer
138 views

Pricing an Option with payoff $\left(1-\frac{K}{S_t}\right)^{+}$

Let $S_t=S_0 \exp\left\{rt+0.5\sigma^2t+\sigma W_t\right\}$ be the usual GBM model for a Stock price under the money-market numeraire. Suppose we want to price an option with payoff at maturity: $C_T=(...
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2answers
69 views

Bond price distribution if yield assumed log-normal

Suppose we assume that yields on a zero-coupon bond that matures at time $T$ follow a log-normal process of the type $y(t,T)=y(t_0,T)e^{-0.5\sigma^2t+\sigma W_t}$ under the T-forward measure. Then, I ...
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2answers
127 views

Normal vs. Lognormal Greeks for Negative Rates Options

My understanding is that for some of the G10 currencies with negative rates (CHF, EUR), Swaption and Cap / Floor prices are quoted in terms of BOTH, normal and log-normal Vols. That in itself is not ...
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21 views

How to Show an Arbitrage Opportunity Exist From a Market-Linked CD?

A bank issues a market-linked CD that guarantees the original principal with an interest at an effective annual rate of 2%, plus 70% of the percentage gain on the ABC Inc. non-dividend-paying stock ...
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36 views

Calculate VaR using method of historical simulation

A bank invests € $1.000.000$ in a hedge fund. The last 500 daily returns can be taken from a database. The worst 20 returns are -4.58 -2.95 -2.95 -2.93 -2.17 -2.08 -2.06 -1.98 -1.94 -...
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20 views

boundary conditions in finite element method

In the appendix A of this paper, https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.227.5073&rep=rep1&type=pdf, a finite element method is demonstrated to price a straddle. The same ...
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Why does higher volatility for ATM Call Option lead to a lower risk-neutral probability of expiring ITM?

This is a follow-up question on the discussion in the thread here, from which I borrow the graph below depicting $N(d_2)$ (i.e. the risk neutral probability of a Call option expiring in the money) ...
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2answers
140 views

Compute the price of a derivative which pays $\log(S_T)S_T$ in the Black Scholes world

Compute the price of a derivative which has pays $\log(S_T)S_T$, you can assume that the Black Scholes model is valid. Using the stock measure we can write the expectation as $$D(0) = S_0 \mathbb{E}...
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1answer
115 views

Probability of an Option maturing In-the-money vs. Volatility

How will the probability of an option ending up in the money change if the volatility of the underlying stock increases? Intuitively, I think the answer to this is that if volatility goes up the ...
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Can someone explain rigorously Taleb's criticism of Nate Silver's election forecasting?

Taleb makes the claim in this paper (and others) that there exists some sort of bound on the variance of a binary forecast such that if a forecaster's binary predictions exceed the bounds on variance ...
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1answer
92 views

Newbie question on volatility surface building

I am trying to build a prototype equity volatility surface for pricing european call options, as a way of learning a new programming language that I am looking at. Is there anything wrong with the ...
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Reproducing a short put position using known binomial option tree

Suppose a put option follows prices according the the binomial tree I've made and posted below and consider writing a put ($S$ is the stock value, $P$ is the put value, obviously). I want to find the ...
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26 views

Continuity of a portfolio with two options with respect to the strikes

Consider the covariance, evaluated at time $t$, between two call options written on two different but not independent underlyings $S_1$ and $S_2$ defined on the same (filtered) measure space $\left(\...
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2answers
102 views

lead lag relationship among futures, options and stock prices

I have the data of past 10 years of NIFTY (the National Stock Exchange of India) stock, futures and options and I want to show the lead-lag relationship (which reacts first, futures, options or stocks)...
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Determine if max profit/loss on group of option legs is unlimited

Say you have a group of option legs for a symbol either for a strategy like a vertical spread or maybe an iron condor. Each with different strikes, expiration dates, etc. Without identifying the type ...
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2answers
55 views

How does volatility affect an option payoff diagram? [closed]

I am a beginner to financial mathematics, and my lecturer asked me to ponder about how volatility may affect the value of an option (as a function of spot price). For example, if an option had a (...
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26 views

How option value default adjusted in jump diffusion model

According to the doc here: http://faculty.baruch.cuny.edu/jgatheral/JumpDiffusionModels.pdf. Formula 7 specifies that the option value under jump diffusion model becomes: So when the default ...
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1answer
122 views

Can we model Implied volatility using GARCH?

Can I use Implied volatility as a dependent variable in a GARCH model? I believe my IV data shows ARCH effects and hence can I use it to model volatility of the volatility? I know literature has used ...
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1answer
182 views

Simulating assets of different currencies

I have a situation as follows: One year call option on a Euro stock with a Euro denominated strike. Knock in feature as follows - The option can only pay out if the growth in the Euro stock over ...
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15answers
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Why Drifts are not in the Black Scholes Formula

This question has puzzled me for a while. We all know geometric brownian motions have drifts $\mu$: $dS / S = \mu dt + \sigma dW$ and different stocks have different drifts of $\mu$. Why would ...
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1answer
267 views

Static vs Dynamic Hedging: when is each one used?

I understand that, in Static Hedging, you don't have to keep rebalancing the offsetting position(s) while in Dynamic Hedging you have to constantly keep re-adjusting it. What I'm not clear on is when ...
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1answer
125 views

Vega in the Heston model

I'm trying to calculate the hedging quantities of the Heston model. I undestand that the replicating portfolio consist of one option, $V = V(S,v,t)$, $\Delta$ stocks and $\phi$ units of the option to ...
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1answer
153 views

Intuition behind prices modeled by Geometric Brownian Motion

Suppose that we model a price $P_t$ to evolve per $$\frac{dP_t}{P_t}=\mu dt+\sigma dW_t$$ for $\mu\in\mathbb{R}$ and $\sigma>0$. The unique strong solution to this diffusion is $$P_t=P_0e^{(\mu-\...
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Payoff of barrier options

I was reading a research paper recently and the author defined payoffs of Up-and-Out and Down-and-Out barrier call options as max[0, ST - K]I(m < H) and max[0, ST - K]I(M > H) respectively. K is ...
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How should I interpret this Put Option delta graph?

In the following graph there's an example of Delta for a Call Option and a Put Option. I understand what this greek means and I understand why it's positive for calls and negative for puts. What I don'...
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1answer
58 views

Is this actual example of calendar arb in quotes?

From my understanding total implied variance has to be a monotonic function of time for there to be no calendar arbitrage. Stumbled upon quotes for this Monday with apparent arb (NKE Dec expiry vs Jan)...
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2answers
125 views

Covariance of a simple option portfolio

Suppose that you have an option portfolio composed by two plain vanilla call options. Each option has, as underlying, a different share following a different Brownian stochastic process. The two ...
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0answers
61 views

Can you use the SABR implied volatility in the Black Scholes formula?

The SABR implied volatility is often used as an input in Black's model to price swaptions, caps, and other interest rate derivatives. I'm wondering whether you can use the SABR closed form solution of ...
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1answer
55 views

Does a barrier breach in a geared put structured note result in greater losses for the investor vs a plain knock in barrier?

I understand how knock in barriers work. But what do geared put in a structured note mean? My understanding is in a geared put vs a regular knock in barrier, the loss for the investor is higher if the ...
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23 views

Greeks for options without bid price

It is very common to be long option without any bid price. What would be the best way to estimate Greeks for such an option? At the ask price? 1/2 of ask?
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1answer
45 views

Book/Reference on LEAPs/ Long dated options

Can anyone suggest a book on pricing and trading in LEAPs / Long dated options (maturity atleast 6 months )or a generic book which covers this topic in great detail. I’m specifically looking at how ...
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47 views

Price of a double barrier knock-in option

According the paper of Hui (1996) - One-touch double barrier binary option values the price of a knock-out double barrier option is: This option pays out a predefined cash amount if the lower or ...
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1answer
36 views

using bid ask prices to imply bid ask volatilities

Let's say i have bid / ask feed of an option prices (across strikes and expiries, calls and puts), what is the accurate way of implying out vols from these bid / asks For eg; to get the bid vol, ...
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3answers
99 views

How closely does a Put's premium proxy the opposite Call's Time Value?

What are the odds of being assigned for a long dated in-the-money call option? - Personal Finance & Money Stack Exchange The math gets a little tricky here, but here's a neat trick to at least ...

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