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August 14, 2014

AAPL and Option Gamma

Many option traders will refer to option delta as the most important option greek. It is debatable but in my opinion the next most important greek is option gamma. Option gamma is a one of the so-called second-order option greeks. It is, in theory, a derivative of a derivative. Specifically, it is the rate of change of an option’s delta relative to a change in the underlying security.

Using option gamma can quickly become very mathematical and tedious for novice option traders. But, for newbies to option trading, here’s what you need to learn to trade using option gamma:

When you buy options you get positive option gamma. That means your deltas always change in your favor. You get longer deltas as the market rises; and you get short deltas as the market falls. For a simple trade like an AAPL September 95 long call that has an option delta of 0.55 and option gamma of 0.0478 , a trader makes money at an increasing rate as the stock rises and loses money at a decreasing rate as the stock falls. Positive option gamma is a good thing.

When you sell options you get negative option gamma. That means your deltas always change to your detriment. You get shorter deltas as the market rises; and you get longer deltas as the market falls. Here again, for a simple trade like a short call, that means you lose money at an increasing rate as the stock rises and make money at a decreasing rate as the stock falls. Negative option gamma is a bad thing.

Start by understanding option gamma from this simple perspective. Then, later, worry about figuring out the math.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

July 10, 2014

Option Delta and Option Gamma

The option “greeks” help explain how and why option prices move. Option delta and option gamma are especially important because they can determine how movements in the stock can affect an option’s price. Let’s take a brief look at how they can affect each other.

Delta and Gamma

Option delta measures how much the theoretical value of an option will change if the stock moves up or down by $1. For example, if a call option is priced at 3.50 and has an option delta of 0.60 and the stock moves higher by $1, the call option should increase in price to 4.10 (3.50 + 0.60). Long calls have positive deltas meaning that if the stock gains value so does the option value all constants being equal. Long puts have negative deltas meaning that if the stock gains value the options value will decrease all constants being equal.

Option gamma is the rate of change of an option’s delta relative to a change in the stock. In other words, option gamma can determine the degree of delta move. For example, if a call option has an option delta of 0.40 and an option gamma of 0.10 and the stock moves higher by $1, the new delta would be 0.50 (0.40 + 0.10).

Think of it this way. If your option position has a large option gamma, its delta can approach 1.00 quicker than with a smaller gamma. This means it will take a shorter amount of time for the position to move in line with the stock. Stock has a delta of 1.00. Of course there are drawbacks to this as well. Large option gammas can cause the position to lose value quickly as expiration nears because the option delta can approach zero rapidly which in turn can lower the option premium. Generally options with greater deltas are more expensive compared to options with lower deltas.

ATM, ITM and OTM

Option gamma is usually highest for near-term and at-the-money (ATM) strike prices and it usually declines if the strike price moves more in-the-money (ITM) or out-of-the-money (OTM). As the stock moves up or down, option gamma drops in value because option delta may be either approaching 1.00 or zero. Because option gamma is based on how option delta moves, it decreases as option delta approaches its limits of either 1.00 or zero.

An Example

Here is a theoretical example. Assume an option trader owns a 30 strike call when the stock is at $30 and the option has one day left until expiration. In this case the option delta should be close to if not at 0.50. If the stock rises the option will be ITM and if it falls it will be OTM. It really has a 50/50 chance of being ITM or OTM with one day left until expiration.

If the stock moves up to $31 with one day left until expiration and is now ITM, then the option delta might be closer to 0.95 because the option has a very good chance of expiring ITM with only one day left until expiration. This would have made the option gamma for the 30 strike call 0.45.

Option delta not only moves as the stock moves but also for different expirations. Instead of only one day left until expiration let’s pretend there are now 30 days until expiration. This will change the option gamma because there is more uncertainty with more time until expiration on whether the option will expire ITM versus the expiration with only one day left. If the stock rose to $31 with 30 days left until expiration, the option delta might rise to 0.60 meaning the option gamma was 0.10. As discussed before in this blog, sometimes market makers will look at the option delta as the odds of the option expiring in the money. In this case, the option with 30 days left until expiration has a little less of a chance of expiring ITM versus the option with only one day left until expiration because of more time and uncertainty; thus a lower option delta.

Closing Thoughts

Option delta and option gamma are critical for option traders to understand particularly how they can affect each other and the position. A couple of the key components to analyze are if the strike prices are ATM, ITM or OTM and how much time there is left until expiration. An option trader can think of option delta as the rate of speed for the position and option gamma as how quickly it gets there.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

June 26, 2014

Outright Call Options and Put Options

Another topic that is brought up often in my Group Coaching class is buying call options and put options outright. When option traders first get their feet wet trading options, they often just buy call options for a bullish outlook and put options for a bearish outlook. In their defense, they are new so they probably do not know many if not any advanced strategies which means they are limited in the option strategies they can trade. Buying call options and put options are the most basic but many times they may not be the best choice.

If an option trader only buys and for that matter sells options outright, he or she often ignores some of the real benefits of using options to create more flexible positions and offset risk.

Here is a recent example using Twitter Inc. (TWTR). If an option trader believed TWTR stock will continue to rise like it has been doing, he could buy a July 39 call for 1.80 when the stock was trading at $38.50. However the long call’s premium would suffer if TWTR stock fell or implied volatility (measured by vega) decreased. Long options can lose value and short options can gain value when implied volatility decreases keeping other variables constant.

Instead of buying a call on TWTR stock, an option trader can implement an option spread (in this case a bull call spread) by also selling a July 42 call for 0.75. This reduces the option trade’s maximum loss to 1.05 (1.80 – 0.75) and also lowers the option trade’s exposure to implied volatility changes because of being long and short options as part of the option spread. This option spread lowers the potential risk however it limits potential gains because of the short option.

In addition, simply buying call options and put options without comparing and contrasting implied volatility (vega), time decay (theta) and how changes in the stock price will affect the option’s premium (delta) can lead to common mistakes. Option traders will sometimes buy options when option premiums are inflated or choose expirations with too little time left. Understanding the pros and cons of an option spread can significantly improve your option trading.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

May 15, 2014

Delta and Your Overall Position

Delta is probably the first greek an option trader learns and is focused on. In fact it can be a critical starting point when learning to trade options. Simply said, delta measures how much the theoretical value of an option will change if the stock moves up or down by $1. A positive delta means the position will rise in value if the stock rises and drop in value of the stock declines. A negative delta means the opposite. The value of the position will rise if the stock declines and drop in value if the stock rises in price. Some traders use delta as an estimate of the likelihood of an option expiring in-the-money (ITM). Though this is common practice, it is not a mathematically accurate representation.

The delta of a single call can range anywhere from 0 to 1.00 and the delta of a single put can range from 0 to -1.00. Generally at-the-money (ATM) options have a delta close to 0.50 for a long call and -0.50 for a long put. If a long call has a delta of 0.50 and the underlying stock moves higher by a dollar, the option premium should increase by $0.50. As you might have derived, long calls have a positive delta and long puts have a negative delta. Just the opposite is true with short options—a short call has a negative delta and a short put has a positive delta. The closer the option’s delta is to 1.00 or -1.00 the more it responds closer to the movement of the stock. Stock has a delta of 1.00 for a long position and -1.00 for a short position.

Taking the above paragraph into context one may be able to derive that the delta of an option depends a great deal on the price of the stock relative to the strike price of the option. All other factors being held constant, when the stock price changes, the delta changes too.

An important thing to understand is that delta is cumulative. A trader can add, subtract and multiply deltas to calculate the delta of the overall position including stock. The overall position delta is a great way to determine the risk/reward of the position. Let’s take a look at a couple of examples.

Let’s say a trader has a bullish outlook on Apple (AAPL) when the stock is trading at $590 and purchases 3 June 590 call options. Each call contract has a delta of +0.50. The total delta of the position would then be +1.50 (3 X 0.50) and not 0.50. For every dollar AAPL rises all factors being held constant again, the position should profit $150 (100 X 1 X 1.50). If AAPL falls $2, the position should lose $300 (100 X -2 X 1.50).

Using AAPL once again as the example, lets say a trader decides to purchase a 590/600 bull call spread instead of the long calls. The delta of the long $590 call is once again 0.50 and the delta of the short $600 call is -0.40. The overall delta of the position is 0.10 (0.50 – 0.40). If AAPL moves higher by $5, the position will now gain $50 (100 X 5 X 0.10). If AAPL falls a dollar, the position will suffer a $10 (100 X -1 X 0.10) loss.

Calculating the position delta is critical for understanding the potential risk/reward of a trader’s position and also of his or her total portfolio as well. If a trader’s portfolio delta is large (positive or negative), then the overall market performance will have a strong impact on the traders profit or loss.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

 

 

February 20, 2014

Socrates and Another Famous Greek

We all know options are derivatives, and their prices are derived from the underlying stock, index, or ETF. But with other factors at work such as implied volatility, time decay, etc. Have you ever wondered how can you know how much an option is going to move with respect to say the underlying? Very simple – check out its delta.

Delta is arguably the most heavily identifiable Greek (unless you count Socrates or Aristotle) especially by individuals learning to trade options. It offers a quick and relatively easy way to tell us what to expect from our option positions as we watch the price action of the underlying. Calls have positive deltas, as they typically move higher on a rise in the stock, and puts have negative deltas, as they typically move lower when the stock rises.

While some investors view delta as the percentage chance an option has of expiring in-the-money, it is really more of a way to project expected appreciation or depreciation. A delta of 0.50 for an AAPL call suggests the option should move 50 cents higher when the AAPL jumps a dollar, and lose 50 cents for every dollar loss in AAPL.

But delta is only foolproof when all other factors are held constant, which is rarely the case (and certainly never the case for time decay). If an option is moving more (or less) than its delta would suggest, it is likely because other variables are shifting. For example, buying demand might be pushing implied volatility higher, raising the price of the options. Still, this king of all Greeks is a good starting point for gauging how your options are likely to move.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

December 26, 2013

Gamma and AAPL

Many option traders will refer to the trifecta of option greeks as delta, theta and vega. But the next most important greek is gamma. Options gamma is a one of the so-called second-order options greeks. It is, if you will, a derivative of a derivative. Specifically, it is the rate of change of an option’s delta relative to a change in the underlying security.

Using options gamma can quickly become very mathematical and tedious for novice option traders. But, for newbies to option trading, here’s what you need to learn to trade using gamma:

When you buy options you get positive gamma. That means your deltas always change in your favor. You get longer deltas as the market rises; and you get short deltas as the market falls. For a simple trade like an AAPL January 565 long call that has a delta of 0.51 and gamma of 0.0115 , a trader makes money at an increasing rate as the stock rises and loses money at a decreasing rate as the stock falls. Positive gamma is a good thing.

When you sell options you get negative gamma. That means your deltas always change to your detriment. You get shorter deltas as the market rises; and you get longer deltas as the market falls. Here again, for a simple trade like a short call, that means you lose money at an increasing rate as the stock rises and make money at a decreasing rate as the stock falls. Negative gamma is a bad thing.

Start by understanding options gamma from this simple perspective. Then, later, worry about working in the math.

Happy New Year!

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

September 18, 2013

Fractal Position Management

Option traders have to manage risk. Want a job description? That’s about it. Every trade has a risk and reward associated with it and traders must realize that especially when first learning how to trade. Because options are instruments of leverage, it is very easy to let risk get out of control, if you’re not careful. Traders must manage risk carefully, instituting tight reins on their options, spreads and portfolio. The management technique of each is essentially the same because position management is fractal.

Something that is fractal has a recurring pattern that has continuity within its scale. For example, a tree is fractal. A tree has a trunk with limbs extending from it; limbs with smaller branches extending from it; smaller branches with yet smaller branches; and leaves with veins that branch off within each leaf. The pattern is repetitive within each iteratively smaller extension of the last. This is found in option position management too.

Individual options have risk that must be managed. They have direction, time and volatility risk which are managed by setting thresholds for each of the corresponding greeks which measure them. When individual options are a part of a spread, the resulting spread has these same risks of direction time and volatility. The spread’s risk must consequently be managed likewise. A trader’s complete option portfolio, which may be comprised of many spreads has systematic risk in accordance to the market. These risks are the same as for individual options or individual spreads: direction, time and volatility. Traders should treat their all encompassing portfolio as a single spread and use the portfolio greeks to set parameters to minimize the total risk of the portfolio.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

August 22, 2013

Learning to Adjust Option Positions

Dan’s online Options Education series this month (August series) has all been all about helping traders learn to adjust options positions. Adjusting option positions is an essential skill for options traders. Adjusting options positions helps traders repair strategies that have gone wrong (or are beginning to go wrong) and often turn losers into breakeven trades and winners. Given that, it’s easy to see why it’s important to learn to adjust options positions.

Adjusting 101

Adjusting options positions is a technique in which an option trader simply alters an existing options position to create a fundamentally different position. Traders are motivated to adjust options positions when the market outlook or physiology changes and the original trade no longer reflects the trader’s thoughts. There is one golden rule of trading: ALWAYS make sure your position reflects your outlook.

This seems like a very obvious rule. And at the onset of any trade, it is. If I’m bullish, I’m going to take a positive delta position. If I think a stock will be range-bound, I’d take a close-to-zero delta trade that has positive theta to profit from sideways movement as time passes. But the problem is gamma. Gamma is the fly in the ointment of option trading.

Gamma

Gamma—particularly negative gamma—is the cause of the need for adjusting.

Gamma definition: Gamma is the rate of change of an option’s (or option position’s) delta relative to a change in the underling.

Oh, yeah. And, just in case you forgot…

Delta definition: Delta is the rate of change on an option’s (or option position’s) price relative to a change in the underlying.

In the case of negative gamma, trader’s deltas always change the wrong way. When the underlying moves higher, the trader gets shorter delta (and loses money at an increasing rate). When the underlying moves lower, negative gamma makes deltas longer (again, causing the trader to lose money at an increasing rate).

Finally

Therefore, traders must learn to adjust options positions, especially income trades, in order to stave off adverse deltas created by the negative gamma that accompanies income trades. But remember, just because you can adjust a position doesn’t mean you should!

To find out more about next month’s topic and have access to the archived previous seminars including “Option Trade Adjustments” please visit Options Education.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

August 1, 2013

Butterflies, Expiration, Raquel Welch and the Importance of Time

One of the major differences when learning to trade options as opposed to equity trading is the impact of time on the various trade instruments. Remember that option premiums reflect the total of both intrinsic (if any) and extrinsic (time) value. Equities are not affected by the passing of time unlike many movie stars. Even though Raquel Welch is still considered to be still quite attractive by many, her look is not the same as it was decades ago when she was known as a “bombshell”. Also remember that while very few things in trading are for certain, one certainty is that the time value of an option premium goes to zero at the closing bell on expiration Friday.

While this decay of time premium to a value of zero is reliable and undeniable in the world of option trading, it is important to recognize that the decay is not linear. It is during the final weeks of the option cycle that decay of the extrinsic premium begins to race ever faster to oblivion. In the vocabulary of the options trader, the rate of theta decay increases as expiration approaches. It is from this quickening of the pace that many examples of option trading vehicles gain their maximum profitability during this final week of their life.

Some of the most dramatic changes in behavior can be seen in the trading strategy known as the butterfly. For those new to options, consideration of the butterfly represents the move from simple single legged strategy such as simply buying a put or a call to multi-legged strategies that include both buying and selling options in certain patterns.

To review briefly, a butterfly consists of a vertical debit spread and vertical credit spread sharing the same strike price constructed together in the same underlying in the same expiration. It may be built using either puts or calls and its directional bias derives from strike selection rather than the particular type of option used for construction. For a (long) butterfly, maximum profit is always achieved at expiration when the underlying closes at the short strike shared by the two vertical spreads.

The butterfly has the interesting characteristic in that it responds sluggishly to price movement early in its life. For example in the first two weeks of a four week option cycle, time decay or theta is slow to erode. However, as expiration approaches, the butterfly becomes increasingly sensitive to price movement as the time premium erodes and the spread becomes increasingly subject to delta as a result of increasing gamma. It is for this reason that many butterfly traders restrict their use to the more responsive part of the options cycle. For a butterfly, the greatest sensitivity to time (and, therefore, profit potential) is reaped in the final week of the life cycle of the butterfly, i.e. expiration week. Beauty is in the eye of the beholder!

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

July 3, 2013

Jennifer Aniston and Another Famous Greek

We all know options are derivatives, and their prices are derived from the underlying stock, index, or ETF. But with other factors at work such as implied volatility, time decay, etc. Have you ever wondered how can you know how much an option is going to move with respect to say the underlying? Very simple – check out its delta.

Delta is arguably the most heavily watched Greek (unless you count Jennifer Aniston) especially by individuals learning to trade options. It offers a quick and relatively easy way to tell us what to expect from our option positions as we watch the price action of the underlying. Calls have positive deltas, as they typically move higher on a rise in the stock, and puts have negative deltas, as they typically move lower when the stock rises.

While some investors view delta as the percentage chance an option has of expiring in-the-money, it is really more of a way to project expected appreciation or depreciation. A delta of 0.50 for an AAPL call suggests the option should move 50 cents higher when the AAPL jumps a dollar, and lose 50 cents for every dollar loss in AAPL.

But delta is only foolproof when all other factors are held constant, which is rarely the case (and certainly never the case for time decay). If an option is moving more (or less) than its delta would suggest, it is likely because other variables are shifting. For example, buying demand might be pushing implied volatility higher, raising the price of the options. Still, this king of all Greeks is a good starting point for gauging how your options are likely to move.

John Kmiecik

Senior Options Instructor

Market Taker Mentoring

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