Options Trading with The Greeks – Gamma and Vega

In part I of this series, we explained the delta and theta of the Greek Tools in financial trading. The next 2 Greek tools to cover are the gamma and vega. Vega is the only one of these four that are not Greek letters.

Gamma is the next Greek tool. If you took college calculus, you’ll remember that gamma is the function of the first derivative of delta. Gamma effectively measures the rate of change in delta taking into account the price changes in the underlying asset. Gamma can be very helpful when you are trying to determine the price estimate of an option to see what degree it is “in” or “out” of the money.

If the option is well in or out of the money, the gamma will be small, but as the option price approaches the target at-the-money price, the gamma will be at its maximum.

Vega is the last Greek tool we can look at. The Vega aspect will look at the sensitivity of the option price in relation to volatile changes in the marketplace. Volatility is the degree and frequency with which a price changes due to influences in the market. If the prices jump all around, the volatility will increase.

There are different types of volatility, as well. Implied volatility is determined by the exercise price, the maturity date, the premium and the rate of return, while historical volatility will look at different factors altogether. Risk increases as the volatility number increases because as the price changes, so too does the potential for profit or loss for this asset.

If the price of an asset changes slowly and gives investors plenty of time to react, then there is little to lose or gain. This will be a big factor in determining risk. If you see large swings in a short period of time, there is obviously more risk and volatility associated with this product.

Vega can be helpful in determining volatility and making the right trading decisions for your financial portfolio. An increase in volatility will translate into an increase into the price of the option itself. Different options will have different vegas since there are individual options that are varied in relation to their volatility percentage.

No matter what, however, you must remember that these Greek tools are there to help you make educated guesses about the assets, but that these are mere estimates. The market is an uncertain landscape. They are measurements that will help, but not agree with each other in every instance.

There are two models that can also help in assisting you with asset valuation. You can have the Blacks-Scholes model and the Binomial model that you can use as part of your overall strategy to find the right research for the assets. You can use these models to display their corresponding data that will help you in determining your short-term and long-term investing strategy.

         

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