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2
votes
1answer
62 views

Under what circumstances Veta is positive?

In general, as the option moves towards expiry, its vega is decreasing. Are there circumstances where the veta, i.e. the sensitivity of vega with respect to time, is positive, that is when vega is ...
1
vote
1answer
81 views

Computation of option vega under CEV

It is easy to define the option vega $\nu=\frac{\partial C}{\partial \sigma}$ under Black Scholes model since volatility is a single quantity. However, under CEV or local volaility model, it is ...
2
votes
0answers
71 views

Trying to understand the sign of Theta

I guess this a pretty easy question to answer, but I'm not able to get the intuition despite reading the concept a couple of times. So, the Greek Theta is almost always negative, except for when an ...
2
votes
0answers
170 views

What is the highest frequency greek for options on futures on bonds?

I'm considering exchange traded options of futures on bonds. Options on bond futures are usually American, thus the Black model is out of question. Which is the most imporatant Greek with respect to ...
1
vote
0answers
86 views

Option greeks vs Position greeks

I know that when it comes to delta, you would calculate your position delta (of a stock position) as follows: option delta * position size * 100 For example if I ...
1
vote
0answers
67 views

Straddle neutral strategy

What does it mean to implement a delta-neutral strategy for straddle ? A straddle consists in buying a call and a put simultaneously, at the same date, on same underlying, with same maturity and ...
1
vote
0answers
127 views

Do you use software for finite element valuation or do you roll your own?

Engineers put a lot of time and effort in developping high quality finite element (FE) software (deal.II, Dune, Elmer,...). So I was wondering if some of those tools would be suitable for quantitative ...
0
votes
0answers
31 views

Delta of an option in two cases

Let C be the prime of a call in fi=unction of the price in term F, Strike K, volatilité $\sigma$ and maturity t: $C(F,K,\sigma,t,r) $ We assume that we know $\delta$ ...
0
votes
0answers
31 views

Hedging portfolio of options with different underlyings

Suppose i have call options for 90 of the 100 stocks of NASDAQ100. How can i hedge the risk using NASDAQ futures? Also, how can I get rid of the residual risk?
0
votes
0answers
86 views

Ideas for speeding up greek calculations

My current calculations using the vollib library averages 0.5 seconds. Is there any way to get it faster? Any tips/best practice notes will be helpful. This is for a scripting language such as ...
0
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0answers
50 views

Binary option greeks formula for american style exercise

I got Binary option greeks formula in many below links but if i am not wrong indirectly they all are related to European exercise style. Link1: ...
0
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0answers
25 views

Intermediate Project Presentation

I would like to know an ideal plan for explaining/representing Greeks (1st,2nd,3rd) order. The topic seems to be quite vast and very interesting but not possible to cover within a 15 mins time frame, ...
0
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0answers
51 views

Why does the OTM call sometimes have a higher theta than the ATM call?

In this AAPL option chain on Mar20 call options, the OTM calls have a slightly higher theta than the ATM calls. Why is this? Is not time value(and thereby time decay) supposed to be highest for ...