ARTICLE SYNOPSIS...On Option Theta by Lawrence D. Cavanagh Options traders use various measurements to calculate an option's risk, the calculations of which are denoted by Greek letters. One example is theta, which is the measure of how much an option's price decreases fo
ARTICLE SYNOPSIS...Real-World Option Pricing by Lawrence D. Cavanagh Option models calculate premiums or the prices of options on the assumption that volatility is a constant. Here's how stock and index price changes are distributed in the real world and how the market pr