Option trading time decay strategy and tactics
To make money in options trading it's not just stock selection that can cause risk, but also option selection Many seasoned option traders option trading time decay strategy and tactics forego the riverboat casino that is options expiration and only trade options that have more than 2 weeks left to expiration. This holds especially true for "income" type trades that are short gamma by nature-- if you try and milk out every last penny option trading time decay strategy and tactics an income trade, you will run the risk of getting cut by the gamma knife edge and letting profits turn to losses in the blink of an eye.
The same siren song can occur for directional option traders. You may look at near term options and say they are "cheap" and offer plenty of leverage for the cost.
But odds are you are neglecting the theta cost of those options, and the actual odds that you have on the position. Or flip it around, you could think that since an option has a theta of with 4 days left to expiration, that somehow you'll be able to make 50 bucks a day just by selling those options, without any respect to the gamma risks in selling short term option trading time decay strategy and tactics.
The desire for newer traders to trade short term options is compounded by the fact that weekly options have become much more widespread in many options, so every week can behave like options expiration. We'll dive a little further into option greeks so you can get a better understanding of what risks you take when trading short term. Gamma is a stock option greek that makes options trading so fun.
It can be referred to as the "acceleration" of the option. If you are long gamma, you want fast moves; if you are short gamma, you want the underlying not to move at all. It's also known option trading time decay strategy and tactics the second derivative, which doesn't mean much unless you are viewing a risk graph:. Gamma is a option trading time decay strategy and tactics thing, and it is directly related to the amount of time decay available in an option.
You can consider gamma to be like fire: But if it gets out of control, it can be a very destructive force.
What does this tell us? On out of the money options, the gamma will start to decay, as those options lose their effectiveness. But as we approach options expiration, gamma drastically increases on at the money options.
This increase is what I affectionately term the "gamma knife edge," and it's where many new option traders get cut. Remember how I said gamma and theta were linked? Here's a chart of theta over time:. So not only do you have a significant increase in gamma, you also have a much larger amount of time decay in options. Funny things start happening to options as we approach expiration.
The pricing models start to get a little weird, and you could potentially be taking on more risk than you thought-- regardless of whether you are an option buyer or seller. Regardless of your trading style-- if you are a new options trader and just beginning to understand the mechanics of the options market, stay away from short term options. Opex trading and dancing around the gamma knife edge is a dark art that requires a level of agility that isn't often seen in new option traders.
Short Term Risks Many seasoned option traders will forego the riverboat casino that is options expiration and only trade options that have more than 2 weeks left to expiration. This point leads me to option trading time decay strategy and tactics next principle new option trades should follow: Don't Trade Close to Expiration We'll dive a little further into option greeks so you can get a better understanding of what risks you take when trading short term.
The Gamma Knife Edge Gamma is a stock option greek that makes options trading so fun. It's also known as the second derivative, which doesn't mean much unless you are viewing a risk graph: Where It Gets Tricky The chart below shows the gamma of a call option buy, plotted over time: See the other side Remember how I said gamma and theta were linked?
Here's a chart of theta over time: Let's move on to the next lesson so you don't treat the market as a casino
Since the algorithms are commercial secrets, we do not know exactly what factors are involved in building up the databases, but we can option trading time decay strategy and tactics that they are likely to be technical rather than political in nature.
This study explored the language and inlink factors to some extent and conjectured about the age factor but did not find a convincing cause that could explain the differentiated coverage. While it is difficult to determine what other factors caused the differentiated coverage and what remedy, if any, should or could be made, the differentiated representation itself is a cause for concern, given the political and economical significance of search engines, as discussed at the beginning of this article.