Learn trading ideas & strategies from TradeKing's experts

Upcoming Live Events
More live events...
Learn it. Trade it.

Open your TradeKing account today!

Upcoming Live Events
More live events...

Probability Calculator

Try this tool

Our Probability Calculator can help you estimate your probability of success for any options strategy. Just pick your underlying security and select up to two target prices. You can adjust variables like volatility, interest rates, dividends and more. The Probability Calculator shows you the statistical odds of your trade either touching your targets or finishing below, between, or above them. You'll also see the prices representing one, two and three standard deviations for the underlying security.

The flexible, intuitive interface makes the Probability Calculator suitable for both novice and advanced users. You'll want to use it before every trade you make.

Want to learn how to use the Probability Calculator?
Check out our Probability Calculator Video Tutorials.


Related Strategies

402 Inverse Skip Strike Butterfly w/ Calls Image
Inverse Skip Strike Butterfly with Calls You can think of this strategy as a back spread with calls with a twist. Instead of simply running a back spread with calls (sell one call, buy two calls), selling the extra call at strike D helps to...

node 212 covered call
Covered Call The Strategy Selling the call obligates you to sell stock you already own at strike price A if the option is assigned. Some investors will run this strategy after they’ve already seen nice gains...

266 Short Call Spread Image
Short Call Spread A short call spread obligates you to sell the stock at strike price A if the option is assigned but gives you the right to buy stock at strike price B. A short call spread is an alternative to the...

More strategies...

All-Star Analysis

Common Investing and Trading Mistakes (and Myths) – And How to Avoid Them on 02/12/2015
I’m on a trader self-improvement kick these days. Recently I’ve posted on trader psychology, playing the trading odds smarter in 2015, and...

Inside Months and Dow Theory for May on 05/06/2015
Rob Smith does not currently hold any positions in the securities mentioned in this post.At the time of publication and in the preceding...

How Do You Tackle Sideways Markets? on 04/29/2014
Market-watchers everywhere are buzzing about this “sideways” market, scratching their heads as to how they’ll find and ride the next big...

More analysis...

On-Demand Videos

PE ratio and stock value explained

In this video Nicole Wachs discusses PE ratio and the limitations of using the price-to-earnings multiple to...


Cashing Out Options, part 2

It’s common for beginning option traders to assume you’d end up with a stock position when you trade options. That’s...


Trader's Lingo, part 1: Stocks

Understanding the unique terminology associated with trading is one of the first hurdles a new investor must...


More videos...