#Knowledge
#Options
Ever wondered y gamma is the enemy of straddle / strangle sellers and what it means?

Presume readers are aware of option Greeks meaning...

To understand , first ...

Relationship between delta, gamma, theta and option premium.
....

....

Theta + (int Rate x Underlying price x Delta) + ( 0.5 x variance of underlying x Underlying price x Underlying Price x Gamma ) = Int rate x Option premium.

Strangle and straddles are delta neutral setup;For a delta neutral setup, the second term becomes zero; Hence,
...
....

Theta +
(0.5 x variance of UL x UL price x Underlying price x Gamma)
= Int rate x option premium

Straddle and strangles have typically zero delta at initiation; they also have positive theta, meaning they gain over time assuming other components of option r constant ..
...
In a delta neutral portfolio, if theta is largely +ve , Gamma will be -ve by a large extent to satisfy the above relation mathematically, which means that as expiry nears the strangles and straddles will have large -ve gamma; This is wat u see traders telling gamma effect.

More from HMK alias MANOJ

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For Weekend learning

Some knowledgeable tweets/threads by me...

I will keep adding to this thread over time

Starting with:

1. Option Synthetics Explained
2. Best free Data website - Icici Direct
3. Per order vs Per lot brokerage
4. Best youtube channel - Power of Stocks

A thread on Option Synthetics

1. Increase your returns
2. Margin requirements/costs are less
3. Save on STT/other charges
4. Develop a better understanding of


Best free website to get Data from - ICICI DIRECT

Advantages:
1. Quantitative Analysis in one place
2. Easy to find stocks where action taking place
3. Find the exact price levels at which OI is being


PER ORDER Vs PER LOT brokerage

Which one is better?

Read the thread to know why one is clearly better than the


Finally, Check out Subhasish Pani Channel - Power of Stocks

My favorite Youtuber from the trading community without a doubt.

Spend your weekend learning from his channel.

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