This video [3:47] discusses how to use Put Options as Insurance for stocks.

A put payoff diagram is a way of visualizing the value of a put option at expiration based on the value of the underlying stock. Learn how to create and interpret put payoff diagrams in this video. [3:23]

This video [4:06] discussed Put Writer Payoff Diagrams.

This video [3:09] discusses Put Options vs. Short and Leverage when investing in the Stock Market.

This video [8:42] discusses more on the mechanics of shorting stock.

This video [9:32] focuses on the question, What does it mean to short a stock?

This video [11:56] is an introduction to price and market capitalization.

This video [4:03] discusses the stock price behavior after announced acquisition with shares. The acquiring company's stock price tends to drop while the target company's stock price will rise.

A video [13:55] explaining what it means to short sell stocks, why it is risky, and how it can benefit the stock market.

A call payoff diagram is a way of visualizing the value of a call option at expiration based on the value of the underlying stock. Learn how to create and interpret call payoff diagrams in this video [3:21].

An option, like a call option, can provide leverage because it allows a bet on a stock to be multiplied many times. Learn how call options provide leverage in this video [3:03].

This video [3:08] explains the Call Writer Payoff Diagram.

Video [14:36] of Sal on CNN on October 10th discussing the credit crisis and a potential solution to it.

A video [5:00] explaining implied volatility in the stock market.