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Questions tagged [implied-volatility]

The volatility of the price of the underlying security that is implied by the market price of an option based on an option pricing model.

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273 views

CMS spread vanilla options quotation

How are vanilla (call/put) options on CMS spread quoted on the markets ? Through an implied (normal/lognormal) volatility with a normal/lognormal model on the spread in the forward measure ?
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193 views

Forward Skew in the Local Volatility Model

How does the local volatility model cause a forward skew? How is this different to the skew observed for future tenors in the vol surface?# Also how do LV models underestimate vol of vol?
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1answer
77 views

Implied volatility of inverse quote

Suppose I have a quote of INR/USD and the implied vol surface is also given. Is it theoritically correct to use to same implied vol for analysis of the inverse quote, i.e. USD/INR. Correct me if I am ...
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102 views

calculating implied volatility of Asian Option

I am new to the site. I saw another similar question but I can't comment on it because of low rep. I wanted to know how the volatility of an Asian is calculated. I was thinking that a weighted ...
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1answer
179 views

Difference in exposure between delta hedged options, ATM straddles and delta hedged straddles

What is the difference in exposures between delta hedged options, ATM straddles and delta hedged straddles. They all seem to provide the same thing, which is exposure to volatility. What are the ...
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271 views

High-frequency historical IV data

Where can I buy historical IV data for specific individual stocks on specific days calculated at least once-per-min (preferably once-per-second)?
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1k views

Gamma Pnl vs Vega Pnl

Why does Gamma Pnl have exposure to realised volatility, but Vega Pnl only has exposure to implied volatility? I am confused as to why gamma pnl is affected (more) by IV and why vega pnl isnt affected ...
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357 views

Value of Call Option as Volatility goes to Infinity

Why would the value of a call option go infinity as volatility goes to infinity? I understand how you could solve this question by taking $\sigma \rightarrow \infty$ in the solution to the black ...
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2answers
688 views

Autocallable pricing under stochastic vs. local volatility

I am interest in the reason why an Autocallable (structured product) is cheaper under local volatility compared to stochastic volatility. I thought this was due to the following: when thinking in ...
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80 views

Anomaly detection in volatility skews / term structure

I'm currently working on some algorithms to help the risks team detect anomalies in the volatilities of equities that are pushed every day in the systems. I quickly thought about using clustering ...
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48 views

What methods are there for parametrizing a volatility surface?

As the title says, what methods exists for parametrizing a volatility surface. More in detail, if i have a matrix of implied volatilitys based on time and strike price, obtained from the Black-Scholes ...
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65 views

Local variance derivation by Gatheral

I've bought Gatheral's book on Local Volatility and I have troubles with understanding a part where he shows that local variance is a conditional expectation of instantaneous variance. Why in the ...
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1answer
139 views

Proof for ATM delta with Local col

I am looking at a time-homogeneous local volatility model where ATM implied volatility equals ATM local volatility: $\sigma_{imp}(S_0)=\sigma_{local}(S_0)$ ATM IV Skew = half of LV slope In general $\...
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281 views

SSR definition in Bergomi in relation to sticky strike and sticky delta

In Bergomi [Stochastic Vol Modelling] (Sec. 2.5.2), in the section on surface dynamics, the following definition of the "Skew Stickiness Ratio" (SSR) is made: $$ SSR = \dfrac{1}{\mathcal{S}_T}\frac{d\...
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213 views

Jim Gatheral's assertion on ATM implied volatility vs. square root variance

In Jim Gatheral's book The Volatility Surface Section Dependence on Skew and Curvature on page 138, he asserts that We know that the implied volatility of an at-the-money forward option in the ...
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1answer
282 views

MTM Hedging Performance of Vanna-Volga

I was wondering how well Vanna-Volga (VV) Implied Vols "perform". So I experimented with the following option parameters $$S_0=100,\ K=92,\ r=0.03,\ q=0.01,\ T=2$$ and VV parameters $$K_1,K_2,K_3=...
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183 views

Implied Vol skew VS Local Vol skew (as presented by Derman 1995)

I am reading Derman's article/notes regarding local volatilty: http://www.emanuelderman.com/writing/entry/the-local-volatility-surface. I am examining the graph on page 13. The Implied volatility (...
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1answer
300 views

Obtaining swaption prices from lognormal volatility quotes

I am working with the following dataset from quandl: https://www.quandl.com/databases/CSWO (I'm using the sample dataset only). My question is how to obtain the swaption prices from the quotes given. ...
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58 views

Which volatility input for in-arrear convexity correction?

When pricing a Libor-in-arrear swap, I am using the following formula (for the cashflow covering the period $[T_{i-1}, T_i]$, ie. paid at $T_i$ and resetting at $T_i$): $V(t) = P(t,T_i)F(t;T_i,T_{i+1}...
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2answers
530 views

Marking implied vol surface daily with sticky strike and sticky delta

Suppose that implied vol surfaces are calibrated once per month due to data restrictions (i.e. option data is only available at month end). How can a trading desk remark their vol surfaces on a daily ...
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90 views

American options — doing better than Black's approximation when $r = 0$

I am trying to find the implied volatility smile for an American call option with a known dividend during the option tenor. For the sake of argument, let's say today is Jan 1, the dividend $D$ is paid ...
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73 views

Implied Volatility of cross currency pairs

Been looking for this... Is there any way we can infer directly, say GBP-JPY's 1-year volatility from GBP-USD's and USD-JPY's? Many thanks.
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Why has the Bachelier implied volatility an elevated curvature than the BS implied volatility?

Why has the Bachelier implied volatility an elevated curvature, i.e. is more skewed, than the BS implied volatility? Thanks a lot! Lisa
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95 views

Research topic on volatility

Currently studying about volatility, VIX and implied volatility as well as option pricing via stochastic volatility models. My question is how these are used in real life except of speculation. Do ...
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2answers
168 views

Flaw in the following argument with Binary Options and Skew

A Binary option is ATM and expires tomorrow. If the skew of the vanilla options steepens (left side up, right side down) what happens to the price of the Binary Option. I know that using a ...
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45 views

Why hasn't SVXY recouped more of its lost value as vol has crashed in the past 2 weeks?

SVXY fell from around \$140 to \$9. It has since bounced back 25% to around \$12. Vix futures went from the 11-14 range to 35 and now back to 17-18. SVXY holds a short position in Vix futures with ...
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2answers
110 views

Nature of short VIX strategies

By now, we all pretty much know that the recent upsurge in the VIX Index caused the spectacular failure of some Exchange-Traded Products (ETPs) or Exchange-Traded Notes (ETNs) written on it. An ...
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1answer
112 views

Rebasing of Cap Volatilities

I recently found this article where towards the end the author describes a method to rebase cap volatilities. Their method works like this: for a fixed strike assume that you are given the implied ...
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1answer
302 views

Use of cap volatilities

I have a cap volatility surface for the 6 months Libor. Can I use the same cap volatility for every cap's caplet to valuate the full cap? Example: Valuate a 18M cap (Libor 6M) by valuating 3 6M ...
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62 views

Regressing Implied Volatility on Historical Volatility - Should I regress using daily returns?

I am trying to scope out the main drivers of implied volatility from a series of different historical volatilities. The objective being to be able to make a fair estimate of implied volatility in ...
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0answers
82 views

Jim Gatheral's claim on the decay of the effect of jumps on the final return distribution

I got a full answer for my question on Jim Gatheral's book The Volatility Surface. I am going to try my luck again on another question on the same book. In Section The Decay of Skew Due to Jumps on ...
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220 views

ATMF Volatility Surface. Read off vol for Options on spot and vol for Options on futures contract

I have a ATM-Forward volatility surface for commodity. It looks like this: Tenors: Tenors refers to the time-to-maturity of a option on futures contract Strikes: ATM-Forward refers to the futures ...
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Jim Gatheral's ansatz

In the Ansatz section of Jim Gatheral's book Volatility Surface (page 32), he assumes $$\mathbb E[x_s|x_T]=x_T\frac{\hat w_s}{\hat w_T}$$ where $\hat w_t:=\int_0^t \hat v_s ds$ is the expected total ...
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104 views

Data on Options on US-Treasury Futes

I am working on an assignment on the Implied Volatility Surface for the options on US-Treasury futures (ZB, ZN, ZF, etc.). I need data on bid and ask, Imp. Vol, Price of underlying etc. Do you know a ...
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85 views

No arbitrage conditions for normal implied volatility

usually the term implied volatility refers to Black-Scholes implied volatility (also Log-Normal volatility): it is defined as a quantity which when plugged in the Black-Scholes formula returns the ...
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2answers
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Implied Volatility of stock on Think or Swim

Think or swim has this thing where they have do a implied volatility of a stock. I have chatted with the TOS people but they aren't terribly helpful. Regardless they did send me two images of what ...
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2answers
1k views

Local vol, stochastic vol, implied vol

I've been studying volatility modelling over past the few days; in particular, the connections between local vol, stochastic vol, implied vol. I've been reading Gatheral's book "The volatility surface"...
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1answer
222 views

Quantlib: AmericanOption implied volatility / root not bracketed

When I apply the americanoptionimpliedvolatility function in the following format: ...
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54 views

Equity Options - “How do I build a forward simulation model with regards to shocks in spot pricing and IV?”

I am trying to build a "What-If" Portfolio, consisting of a total of 20 options, across different tenors, strikes (delta), but on the same security. Simply put, the objective is for me to test the ...
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314 views

(C++) Monte Carlo pricer for SABR model to test Hagan / Paulot formulas

I'm trying to test the so-called Hagan formula (p.6 of this paper) and the Paulot formula, order 1 only (eq. (43) p.19 of this paper. For this, i'm trying to use both Euler and Milstein scheme ...
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1answer
115 views

How are the BKM risk-neutral moments derived?

I've been doing a lot of research on implied volatility skewness, and one of the most commonly cited papers I've come across is "Stock Return Characteristics, Skew Laws, and the Differential Pricing ...
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1answer
318 views

Barrier option with Rebate

Can I use the Implied vol surface from the plain vanilla options to price the Knock out Barrier options with Rebate?. In addition, for risk management purpose, can I just imply the volatility from the ...
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1answer
72 views

Quoting options with reference price and delta

I always thought equity options where quoted with implied volatility, the price being given by the Black-Scholes price of the option with volatility equal to the implied volatlity. But apparently ...
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83 views

Should I interpolate before or after to find option price using Vanna-Volga method?

I am trying to calculate the implied option premium $C(K)$ and $\Delta$ using the procedure outlined by Castagna and Mercurio in this paper - http://www.fabiomercurio.it/consistentfxsmile.pdf My ...
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1answer
122 views

XIV Positive Roll Yield

I understand that VIX futures are usually in contango and so a portfolio that holds futures with a weighted average expiration of 30 days will "roll" down to equal the VIX index at maturity. This is ...
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1answer
96 views

Probability integral transforms of risk-neutral densities

I've backed out a time series of risk-neutral densities of GBP/USD options using a non-parametric approach in Matlab and would like to assess their forecast ability by applying the unconditional test ...
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1answer
81 views

IVF and implied distribution of underlying in John Hull's book

There is a statement in John Hull's book Options, Futures and Other Derivatives 9th page 633 for the relation between ...
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1answer
342 views

“Black-Scholes model implies flat implied volatility plots”?

I am a beginner in Finance and I get confused by the statement "Black-Scholes model implies flat implied volatility plots" Here is one form of this statement: (Dan Stefanica, 150 most frequently ...
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127 views

Time frame for implied vs realized vol

I've seen charts of implied vol (IV) against realized volatility? What time frames do people generally use to calculate each? For example, do people generally use ATM 1 month call options to get IV, ...
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1answer
221 views

Build Implied Volatility Smile

I am currently to create my own volatility smile for cryptocurrency options. I am basically reading the bids and offers and calculating the implied volatilities. I now want to shape and parametrise ...