OAP 044: Which Options Greeks Are The Most Important?

options greeks
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Options traders often reference the "Greeks" which include delta, gamma, vega and theta of their underlying positions as a way to measure the sensitivity of an option's price to market movements.

And while looking at option greeks can be helpful, there's also a big misconception about them... one that trips a lot of traders up early on in their career.

Most traders falsely assume that the "Greeks" are part of an options price - but they are NOT part of option pricing. Option greeks are used only to estimate what an option price might do reacting to specific market changes.

Seems like a simple error but the resulting consequences could be the difference between winning and losing on your next trade.

In today's show, I'll run through each for the four major options greeks and tell you which ones you should be focusing on as you plan your next trade and how checking the greeks can help with choosing the right options strategy.

Key Points from Today's Show:

  • Delta is the amount an option price is expected to move based on a $1 move up in the underlying stock. Calls have positive delta, between 0 and 1 & Puts have negative delta, between 0 and -1.

  • Gamma is the rate of change in delta based on a $1 change in the stock price. So if delta is the “speed” at which option prices change, you can think of gamma as the “acceleration.” Options with the highest gamma are the most responsive to changes in the price of the underlying stock.
  • Time decay, or theta, is enemy number one for the option buyer. On the other hand, it’s usually the option seller’s best friend. Theta is the amount the price of calls and puts will decrease every single day as the option approaches its expiration date.
  • Vega is the amount call and put prices will change for every 1% change in implied volatility. Vega does not have any effect on the intrinsic value of options and only affects the “time value” of an option’s price. That said, IV is the most critical element of an option the option pricing model because it’s the only unknown.
  • Remember that the Greeks are just “snapshots” in time. What’s more important to realize about options pricing, is the impact of future time decay and volatility on the underlying position.

Option Greeks

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Free Options Trading Courses:

  • Options Basics [20 Videos]Whether you're a completely new trader or an experienced trader, you'll still need to master the basics. The goal of this section is to help lay the groundwork for your education with some simple, yet important lessons surrounding options.
  • Finding & Placing Trades [26 Videos]Successful options trading is 100% dependent on your ability to find and enter trades that give you an "edge" in the market. This module helps teach you how to properly scan for and select the best strategies to execute smarter option trades each day.
  • Pricing & Volatility [12 Videos]This module includes lessons on mastering implied volatility and premium pricing for specific strategies. We'll also look at IV relativeness and percentiles which help you determine the best strategy to use for each and every possible market setup.
  • Neutral Options Strategies [7 Videos]The beauty of options is that you can trade the market within a neutral range either up or down. You'll learn to love sideways and range bound markets because of the opportunity to build non-directional strategies that profit if the stock goes up, down or nowhere at all.
  • Bullish Options Strategies [12 Videos]Naturally everyone wants to make money when the market is heading higher. In this module, we'll show you how to create specific strategies that profit from up trending markets including low IV strategies like calendars, diagonals, covered calls and direction debit spreads.
  • Options Expiration & Assignment [11 Videos]Our goal is to make sure you understand the logistics of how each process works and the parties involved. If you don’t feel confident in the expiration processes or have questions that you just can't seem to get answered, then this section will help you.
  • Portfolio Management [16 Videos]When I say "portfolio management" some people automatically assume you need a Masters from MIT to understand the concept and strategies - that is NOT the case. And in this module, you'll see why managing your risk trading options is actually quite simple.
  • Trade Adjustments/Hedges [15 Videos]: In this popular module, we'll give you concrete examples of how you can hedge different options strategies to both reduce potential losses and give yourself an opportunity to profit if things turn around. Plus, we'll help you create an alert system to save time and make it more automatic.
  • Professional Trading [14 Videos]Honestly, this module isn't just for professional traders; it's for anyone who wants to eventually have options replace some (or all) of their monthly income. Because the reality is that mindset is everything if you truly want to earn a living trading options.

PDF Guides & Checklists:

  • The Ultimate Options Strategy Guide [40 Pages]: Our most popular PDF workbook with detailed options strategy pages categorized by market direction. Read the whole guide in less than 15 mins and have it forever to reference.
  • Earnings Trading Guide [33 Pages]: The ultimate guide to earnings trades including the top things to look for when playing these one-day volatility events, expected move calculations, best strategies to use, adjustments, etc.
  • Implied Volatility (IV) Percentile Rank [3 Pages]A cool, simple visual tool to help you understand how we should be trading based on the current IV rank of any particular stock and the best strategies for each blocked section of IV.
  • Guide to Trade Size & Allocation [8 Pages]Helping you figure out exactly how to calculate new position size as well as how much you should be allocating to your each position based on your overall portfolio balance.
  • When to Exit/Manage Trades [7 Pages]Broken down by option strategy we'll give you concrete guidelines on the best exit points and prices for each trade type in order to maximize your win rate and profits long-term.
  • 7-Step Trade Entry Checklist [10 Pages]Our top 7 things you should be double-checking before you enter your next trading. This quick checklist will help keep you out of harms way by making sure you make smarter entries.

Real-Money, LIVE Trading:

  • IWM Iron Butterfly (Closing Trade): Exiting this IWM iron butterfly options trade gave us a $1,100+ profit after pinning the stock price one day before expiration at the peak of our spread.
  • CMG Iron Condor (Opening Trade): I just recorded my live trading platform (and real money account) as I walked through the process of entering a new iron condor trade in CMG stock. Inside you'll see me analyze, price and fill the trade in real-time.
  • APC Strangle (Closing Trade): Took about $150 out of this small APC strangle trade even after the stock moved completely against our call short strikes this month. But as always, implied volatility always trumps direction and because IV went down, the value of this spread dropped more-so than the impact of the directional move higher.
  • IYR Call Credit Spread (Adjusting Trade): This adjustment is good for 2 reasons. First, it reduces the overall risk in the trade if IYR continues to move higher. Second, it still leaves room for the stock to fall back down into our new profit window.
  • XHB Straddle (Closing Trade): We were able to bank a $120 profit early in the March expiration cycle for our XHB straddle with the stock trading right in the middle of our expected range.
  • AAPL Call Calendar (Opening Trade): Look behind the scenes as I use our new watchlist software to quickly filter and find this AAPL call calendar spread trade during overall low implied volatility in the market.
  • COF Strangle (Adjusting Trade): Here I recorded my live trading screen (and real money account) showing you the entire thought process we used to make an adjustment to my current short strangle in COF to reduce risk.
  • GDX Strangle (Opening Trade): With gold's high IV we are getting into a new strangle with a 70% chance of success and a decent credit for selling option premium.
  • IBB Iron Condor (Closing Trade): Today we're exiting an iron condor we traded in IBB for a $142 profit. Inside you'll see me analyze the exit price and fill the trade in real-time.

Thank You for Listening!

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About The Author

Kirk Du Plessis

Kirk founded Option Alpha in early 2007 and currently serves as the Head Trader. Formerly an Investment Banker in the Mergers and Acquisitions Group for Deutsche Bank in New York and REIT Analyst for BB&T Capital Markets in Washington D.C., he's a Full-time Options Trader and Real Estate Investor. He's been interviewed on dozens of investing websites/podcasts and he's been seen in Barron’s Magazine, SmartMoney, and various other financial publications. Kirk currently lives in Pennsylvania (USA) with his beautiful wife and two daughters.