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Sunday, April 7, 2013
Effects of IMPLIED VOLATILITY (IV) on Option Greek VEGA – With Past DATA and CHARTS
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Labels: Option Greeks
Friday, March 29, 2013
Effects of IMPLIED VOLATILITY (IV) on Option Greek THETA – With Past DATA and CHARTS
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Labels: Option Greeks
Tuesday, March 19, 2013
Effects of IMPLIED VOLATILITY (IV) on Option Greek GAMMA – With Past DATA and CHARTS
“Behaviour of OPTION GREEKS in relation to TIME REMAINING TO EXPIRATION and IMPLIED VOLATILITY (IV) – With Past DATA and CHARTS.”
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Labels: Option Greeks
Saturday, May 26, 2012
Behaviour of DELTA in relation to IMPLIED VOLATILITY (IV) – With Past DATA and CHARTS
Previously, we’ve covered about the behavior of Option Greeks in relation to time remaining to expiration.
From this post onwards, we’ll start to move on to discuss the behavior of Option Greeks in relation to Implied Volatility (IV).
The following is the behavior of Delta in relation to Implied Volatility (IV) changes:
When Implied Volatility (IV) increases, Delta of OTM option will increase, whereas the Delta of ITM option will decrease.
However, the Delta of ATM option will always remain at around 0.5.
Now, let’s observe using the past real data.
The following is the Options Chain for Call options of RIMM as at 3 Sep 2010, when the closing price is $44.78, expiration month Sep 2010 (10 days to expiration), and Implied Volatility (IV) is 25, 54.05, and 85, respectively.
(The rows highlighted in yellow are ITM options, while those in white are OTM).
For easier reading and comparison, I summarize the Delta for different IV as follow:
As can be seen from the table, for ITM options (highlighted in yellow), the Delta values decrease when IV increases, i.e. as it moves from the left (IV = 25, the lowest IV in this example) to the right (IV = 85, the highest IV in this example).
In contrast, for OTM options (white rows in the table), the Delta values increase when IV increases.
For near ATM options (i.e. the option’s strike price $45.00, because the stock price is $44.78), the Delta is about the same, i.e. close to 0.5, across all IV levels.
Subsequently, we can look from different point of view, i.e. by comparing Delta at various strike prices at different IV level, as shown in the chart below.
From the chart, we can see that:
The effect of stock price changes on the option price (i.e. Delta) is more “extreme“ for ITM and OTM options with lower IV, as compared to those with higher IV.
Lower IV will push the Deltas of ITM Calls closer to 1 (-1 for Puts) and the OTM option’s Delta closer to 0.
In contrast, for ATM options, the Delta is relatively unaffected to changes in IV level, i.e. all will have Deltas close to 0.5.
To view the list of all the series on the this topic, please refer to:
“Behaviour of OPTION GREEKS in relation to TIME REMAINING TO EXPIRATION and IMPLIED VOLATILITY (IV) – With Past DATA and CHARTS.”
Other Learning Resources:
* FREE Trading Educational Videos with Special Feature
* FREE Trading Educational Videos from Trading Experts
Related Topics:
* Understanding Implied Volatility (IV)
* Understanding Option Greek
* Understanding Option’s Time Value
* Learning Candlestick Charts
* Options Trading Basic – Part 1
* Options Trading Basic – Part 2
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Saturday, February 25, 2012
Behaviour of VEGA in relation to TIME REMAINING TO EXPIRATION – With Past DATA and CHARTS
The following is the behavior of Vega in relation to Time to Expiration:
Assuming all other things unchanged, Vega decreases as the option gets nearer to expiration.
We’ll use the same past actual data as shown in the previous post on the behavior of Delta, namely:
Options Chain for Call options of RIMM as at 3 Sep 2010, when the closing price is $44.78 and Implied Volatility (IV) is 54.05, for expiration month of Sep 2010 (10 days to expiration), October 2010 (38 days to expiration) and Dec 2010 (101 days to expiration).
The summary of Vega values for different Time to Expiration:
As can be seen from the table, for all level of moneyness (ITM, ATM, OTM), Vega values are always lower for the options with expiration month “Sep-10” (nearer to expiration), followed by “Oct-10”, and then “Dec-10” (further to expiration).
This proves the statement above.
Now, let’s move on to compare Vega of different time to expiration at various strike prices.
As can be seen in the chart:
For all the three options with different time to expiration, Vega always behaves the same way, i.e. Vega of ATM options is always higher than deeper ITM and OTM options.
Comparing the Vega values between deeper ITM and OTM options given the same time to expiration, OTM option seem to have higher Vega than ITM option.
This makes sense because ATM options have the highest time value component, and changes in Implied Volatility (IV) would only affect the time value portion of an option’s price.Comparing between ITM & OTM options, volatility changes would have greater effect for OTM options than for ITM options. This because OTM options comprise merely of time value, while ITM options comprise of intrinsic value plus time value. The deeper the ITM options, the smaller the portion of time value the ITM option would have.
To view the list of all the series on the this topic, please refer to:
“Behaviour of OPTION GREEKS in relation to TIME REMAINING TO EXPIRATION and IMPLIED VOLATILITY (IV) – With Past DATA and CHARTS.”
Other Learning Resources:
* FREE Trading Educational Videos with Special Feature
* FREE Trading Educational Videos from Trading Experts
Related Topics:
* Understanding Implied Volatility (IV)
* Understanding Option Greek
* Understanding Option’s Time Value
* Learning Candlestick Charts
* Options Trading Basic – Part 1
* Options Trading Basic – Part 2
To receive updates on new articles, Subscribe to Options Trading Beginner
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