A put option contract gives the owner the right (but not the obligation) to sell 100 shares of the asset at the strike price any time before expiration. If you sell a put option, you have the obligation to purchase those 100 shares from the owner.
The underlying of an option contract is a stock, ETF, or index that the option contract trades against. The price movement and volatility of the underlying affects the pricing of the option throughout its life span.
The implied volatility of an option contract is an estimation of contracts volatility based on the current trading price. The more expensive the option, the higher the implied volatility. Implied volatility gives the trader a sense if the contract is relatively cheap or expensive.
Multiple-Criteria Decision Making (MCDM) is a field of mathematics that explicitly analyzes multiple conflicting criteria in decision making. The Brutus Options Ranker uses proprietary adoption of MCDM to rank daily options trades against investors custom trading strategies.
The Risk-free interest rate is the return on investment with no loss-of-capital risk. In practice, this does not exist. In theory, it is an important parameter in option pricing as it sets the baseline price upon which risk premium should be added. A practical estimate to the risk-free interest rate is taken from 'risk-free' bond issued by the government or agency where the default risk is practically zero.
Expiration is the date that the option contract expires. All options contracts are valid for a fixed duration. This is the lifespan of the option where the buyer has the right to exercise the option and the seller has the obligation to fulfill the terms of the option. [click to read more]
The Black Scholes or Black Scholes Merton model is a mathematical model used to estimate the price of European Style derivatives, including options contracts. The model forms the basis of the Black-Scholes formula, which can be rewritten in different forms to solve for various options trading parameters. [click to read more]