Sometimes it pays to go back to basics. I got an email recently from a TradeKing customer who laid out... more

To finish off the series on the Greeks, here are a few fast facts on the interest rate Greek rho. Rho ... more

You need to watch Vega closely if you're trading a single option contact or doing a multi-leg strategy... more

A little trivia first about Vega, before we dive into its use. Vega is not actually a Greek letter -- ... more

Vega is the Rodney Dangerfield of the Greeks -- it just doesn't get the respect it deserves. It is the... more

In the last post of our Theta series, I'd like to show you how to evaluate theta across your entire po... more

Today I'd like to talk about theta, or time decay, as it relates to volatility and another closely rel... more

In my previous post on theta, we explained how time premium is calculated and graphed the rate at wh... more

Source: Options Guy's BlogTheta is enemy number one for the option buyer. It is defined as the amount ... more

Source: Options Guy's Blog In the last post I noted that delta is dynamic: it moves not only as the u... more