Articles, in plain English

What Happens When an Option Expires?

At expiration an option is worth only its intrinsic value. Here is what happens to a call or put that finishes in, at, or out of the money — explained with payoff diagrams.

Exiting an Option Position Before Expiry

You rarely have to wait for expiration. Selling to close, exercising early, or letting it expire — and why selling usually beats exercising, shown with the time-value diagram.

Options vs. Stocks: What's the Difference?

Stocks make you a part-owner of a company; options are time-limited contracts on a stock’s price. Here is how they differ in ownership, leverage, risk, and when each one makes sense.

Are Options Gambling? A Risk-Based Answer

Options can be used to reduce risk or to make lottery-style bets. Whether it is gambling depends on how you use them — here is a clear, risk-based way to tell the difference.

Why High Volatility Makes Selling Options Tempting — and How to Cap the Risk

High implied volatility can multiply the premium on a 30-day call or put several times over — but the fat yield is payment for fatter risk. How credit spreads keep most of the income while capping the worst case.

How the 2008 Crisis Made Credit Default Swaps Famous

Credit default swaps were meant to be insurance on debt. In 2008 they became a household name for the wrong reasons. Here is what they are, what went wrong, and what changed afterward.