SteadyOptions is an options trading forum where you can find solutions from top options traders. TRY IT FREE!

We’ve all been there… researching options strategies and unable to find the answers we’re looking for. SteadyOptions has your solution.

Options Trading Greeks: Gamma For Speed


Gamma measures the rate of change for delta with respect to the underlying asset's price. The gamma of an option is expressed as a percentage and reflects the change in the delta in response to a one point movement of the underlying stock price. Like the delta, the gamma is constantly changing, even with tiny movements of the underlying stock price.

The Gamma is one of the most important Options Greeks.

It generally is at its peak value when the stock price is near the strike of the option and decreases as the option goes deeper into or out of the money. Options that are very deeply into or out of the money have gamma values close to 0.

 

Effect of volatility and time to expiration on gamma

 

Gamma is important because it shows us how fast our position delta will change as the market price of the underlying asset changes.

 

When volatility is low, the gamma of At-The-Money options is high while the gamma for deeply into or out-of-the-money options approaches 0. The reason is that when volatility is low, the time value of such options are low but it goes up dramatically as the underlying stock price approaches the strike price.

 

When volatility is high, gamma tends to be stable across all strike prices. This is due to the fact that when volatility is high, the time value of deeply in/out-of-the-money options are already quite substantial. Thus, the increase in the time value of these options as they go nearer the money will be less dramatic and hence the low and stable gamma.

 

As the time to expiration draws nearer, the gamma of At-The-Money options increases while the gamma of In-The-Money and Out-of-The-Money options decreases.

 

Options Greeks: Gamma For Speed

 

How to put gamma work for you

 

In simple terms, the gamma is the option's sensitivity to changes in the underlying price. In other words, the higher the gamma, the more sensitive the options price is to the changes in the underlying price.

 

When you buy options, the trade has a positive gamma - the gamma is your friend. When you sell options, the trade has a negative gamma - the gamma is your enemy. The closer we are to expiration, the higher is the gamma.

 

When you buy options and expect a significant and quick move, you should go with closer expiration. The options with closer expiration will gain more if the underlying moves. The tradeoff is that if the underlying doesn't move, the negative theta will start to kick off much faster.

 

When you sell options, you have negative gamma that will increase significantly as the options approach expiration. This is the biggest risk of selling weekly options.

 

Should you trade weekly options?

 

Going with close expiration will give you higher positive theta per day but higher negative gamma. That means that a sharp move of the underlying will cause much higher loss. So if the underlying doesn't move, then theta will kick off and you will just earn money with every passing day. But if it does move, the loss will become very large very quickly. Another disadvantage of close expiration is that in order to get decent credit, you will have to choose strikes much closer to the underlying.

 

As we know, there are no free lunches in the stock market. Everything comes with a price. When the markets don't move, trading close expiration might seem like a genius move. The markets will look like an ATM machine for few weeks or even months. But when a big move comes, it will wipe out months of gains. If the markets gap, there is nothing you can do to prevent a large loss.

 

Does it mean you should not trade weekly options? Not at all. They can still bring nice gains and diversification to your options portfolio. But you should treat them as speculative trades, and allocate the funds accordingly. Many options "gurus" describe those weekly trades as "conservative" strategy. Nothing can be further from the truth.

 

Example

 

Lets sat you have a call with a delta of .60. If the price of the underlying security rises by $1, then the price of the call would therefore rise by $.60. If the gamma value was .10, then the delta would increase to .70. This means that another $1 rise in the price of the underlying security would result in the price of the option increasing by $.70, and the delta would also increase again in accordance with the gamma.

 

This highlights how moneyness affects the delta value of an options contract, because when the contract gets deeper into the money, each price movement of the underlying security has a bigger effect on the price. The gamma is also affected by moneyness, and it decreases as an in the money contract moves further into the money.

 

This means that as a contract gets deeper into the money, the delta continues to increase but at a slower rate. The gamma of an out of the money contract would also decrease as it moved further out of the money. Therefore, gamma is typically at its highest for options that are at the money, or very near the money.

 

List of gamma positive strategies

  • Long Call
  • Long Put
  • Long Straddle
  • Long Strangle
  • Long Calendar Spread
  • Vertical Debit Spread


List of gamma negative strategies

  • Short Call
  • Short Put
  • Short Straddle
  • Short Strangle
  • Vertical Credit Spread
  • Covered Call Write
  • Covered Put Write
  • Iron Condor
  • Butterfly


Summary

  • Gamma measures the rate of change for delta with respect to the underlying asset's price.
  • All long options have positive gamma and all short options have negative gamma.
  • The gamma of a position tells us how much a $1.00 move in the underlying will change an option’s delta.
  • We never hold our trades till expiration to avoid increased gamma risk.


Watch the video:
 

 

 

 

 


 
Related articles:


Want to learn how to put the Options Greeks to work for you?


Start Your Free Trial

What Is SteadyOptions?

Full Trading Plan

Complete Portfolio Approach

Diversified Options Strategies

Exclusive Community Forum

Steady And Consistent Gains

High Quality Education

Risk Management, Portfolio Size

Performance based on real fills

Try It Free

Non-directional Options Strategies

10-15 trade Ideas Per Month

Targets 5-7% Monthly Net Return

Visit our Education Center

Recent Articles

Articles

  • Fear of Options Assignment

    One of the most common fears in option trading is one of early assignment.  The fear of having a large number of shares (or a large short position) coupled with a potential margin call (or Reg-T call) causing a sudden shortage of cash in their accounts worries investors.  Investors commonly view assignment as a huge potential risk.

    By cwelsh,

    • 0 comments
    • 128 views
  • The Value of Equity Asset Class Diversification

    This investing lesson is a tale of two time periods that highlight the important role of equity asset class diversification and systematic rebalancing in an equity fund portfolio.  Human nature is a failed investor, when our natural instinct is often to do the exact opposite of what we should do in practice.

    By Jesse,

    • 0 comments
    • 124 views
  • Lessons from Bill Ackman's comeback

    Bill Ackman is an American investor, hedge fund manager and philanthropist. He is the founder and CEO of Pershing Square Capital Management, a hedge fund management company. Ackman is considered by some to be a contrarian investor but considers himself an activist investor.

    By Kim,

    • 0 comments
    • 480 views
  • Exercise Risk of Uncovered Calls

    Exactly how risky are uncovered calls? That depends … Some traders avoid uncovered calls altogether because the risk can be significant, even unlimited (in theory). Others can rationalize this strategy as only moderately risky based on how you pick expiration and strike.

    By Michael C. Thomsett,

    • 0 comments
    • 177 views
  • Cash is (no longer) Trash

    According to www.bankrate.com, the current national average interest rate on bank savings accounts is only 0.10%. Many banks have barely budgeted on increasing interest rates even as the risk-free rate of return on a US Treasury Bill is currently in excess of 2%. This spread is a substantial profit margin for banks.

    By Jesse,

    • 0 comments
    • 271 views
  • The Danger of False Signals

    Everyone has heard about the troubling “false signals,” a price-based reversal indicator that shows up but does not lead to reversal. This is frustrating and expensive, but the problems in how traders react to false signals can be managed effectively with a few techniques.

    By Michael C. Thomsett,

    • 0 comments
    • 347 views
  • How Earnings Impact Options Prices

    Yesterday I closed our SE May 22.5 buy-write for a couple of reasons. First off, I knew that the position only had ~$0.20 more to gain over the next three weeks. I also knew those gains would take some time to capture as out-of-the-money puts (which is essentially what the May 22.5 buy-write is) hold their value until right before expiration.

    By Jacob Mintz,

    • 0 comments
    • 228 views
  • Options in the Media

    In general, financial reporting is a scam.  The daily highlights of “President Trump had eggs for breakfast causing futures traders to worry as markets decline slightly” or “Markets up on Mickey Mouse’s birthday,” always amaze me at the abject lack of correlation. 

    By cwelsh,

    • 0 comments
    • 290 views
  • Steady Momentum ETF Portfolio

    Last May, I wrote an article about how to analyze an investment strategy. Today I’ll use the concepts from that article to explain how the Steady Momentum ETF Portfolio (available as a bonus strategy to Steady Momentum subscribers) meets the criteria described in that article.

    By Jesse,

    • 0 comments
    • 427 views
  • Where to Find Exceptional Trading Data?

    Options traders are “data wonks,” meaning we all rely on information to make what we hope are informed decisions. But how do you know the difference between valuable and reliable data on the one hand, and rumor or speculation on the other?

    By Michael C. Thomsett,

    • 0 comments
    • 479 views

  Report Article

We want to hear from you!




Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account. It's easy and free!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now

Options Trading Blogs