Call vs. Put Options

A call option is the right to buy a stock at a specific price by an expiration date, and a put option is the right to sell a stock at a specific price by an expiration date. That's the summary. Now, ...
Investopedia

Black-Scholes Model: What It Is, How It Works, and the Options Formula

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...