Implied Volatility

The effect of interest rates on options prices—rho—is sometimes considered the forgotten greek. But interest rates matter, especially when deciding when to exercise options positions.

Different volatility numbers tell you different things. Is one more useful than another? Let's find out.

Are you long or short an in-the-money call option on a stock that’s about to pay a dividend? Make sure you understand dividend risk.

Looking to pick stocks worth trading? You can lay the groundwork for a sound stock selection strategy with a few relatively simple components.

A small trading account shouldn’t stop you from trading like traders with large accounts. Here are three options trading strategies to let you trade lower-priced stocks with similar risk/return as more expensive stocks.

Ask the coach: Education coaches from TD Ameritrade answer questions from seasoned traders and newbies. In this issue, learn about the difference between implied and historical volatility.

When trading options on futures contracts, the number of choices available—delivery months and options expiration dates—can be overwhelming. Follow the volatility curve to help you whittle it down.

Should you switch from trading long options strategies to short options strategies when volatility levels are high? Sometimes prices are high for a reason.

Earnings season can be a time of higher-than-typical volatility, which can mean an increase in risk as well as opportunity. Learn some of the options trading strategies you might use during earnings season.

Even your best trading ideas won’t always go as expected. When you are looking at a losing position, employ game theory to guide you.

Theta can indicate many things but you can only depend on it after you have closed your trade.

Trading a stock around earnings day isn’t always simple. There tends to be volatility risk. It also helps to really know the company’s fundamentals.

Explore options statistics on thinkorswim—implied & historical vol and percentiles, the Sizzle Index, and the put/call ratio. Learn how options stats can help traders and investors make more informed decisions.

Learn how a collar strategy—a covered call and a protective put—might be a way to manage stock risk.

thinkorswim has developed an interface dedicated to researching the effects that earnings announcements have on the prices of stocks and options.

Can straddles be used in an options strategy around earnings announcements or other market-moving events? Yes, but there are risks and other considerations.

Learn how a long calendar spread can be effective in a low-volatility trading environment.

Once you’ve learned to use the Risk Profile tool on the thinkorswim® platform for single-leg options, you may wish to use it for more complex trades.

Vertical spreads are fairly versatile when making a directional stance. But what if you're stuck in a range-bound market? Consider the iron condor.

Learn how the put/call ratio is calculated and how to use the P/C ratio as an indicator of stock market sentiment.

Treasury bonds are boring, right? Wrong. For traders, they represent a market that can be bigger than stocks.

Options trading involves risk, but these risks can be analyzed, monitored, and simulated with the thinkorswim® Risk Profile tool.

Learn the difference between implied and historical volatility, and find out how to align your options trading strategy with the right volatility exposure.

Learn the differences between equity options and options on futures contracts, and how experienced options traders can use futures options to enhance their trading.

Learn how the VIX, VIX futures, VIX options and the VVIX work together to help traders increase market awareness and make more informed option trading decisions.

Learn about the dynamics of foreign exchange volatility, and where to find currency volatility data.

Do you follow the VIX as a volatility measure? Ever heard of the rule of 16? How about volatility skew? Learn how to apply these concepts to options trading.

The sensitivity of option prices to changes in time, volatility, and the price of the underlying are commonly referred to as “Greeks.” As you prepare for earnings season, here's an overview.

Implied volatility usually increases ahead of earnings announcements and then drops after the news release. If you know implied volatility is going to drop after earnings reports, here are three options trading strategies you could trade.

Learn how adjusting a collar strategy—a covered call with a protective put—can help you manage stock risk.

Learn how to turn a long butterfly spread—typically initiated with a debit—into a credit spread by adjusting one of the wings, aka a “broken wing butterfly.”

Options on futures are quite similar to their equity option cousins, but a few differences do exist.

As the front-month leg of a calendar options spread approaches expiration, a decision must be made: close the spread or roll it.

Are you an option looking for a strategy designed for a lower-volatility environment?

Learn how weekly stock options can help you target your exposure to market events such as earnings releases or economic events.

Learn how three trading tools and services can help newcomers and veterans alike with trade selection and risk management.

Learn about the dynamics of foreign exchange volatility, and where to find currency volatility data.

Learn how to dynamically hedge changes in an option position’s delta in a process known as “gamma scalping.”

Some option traders dynamically hedge positions, but doing so requires a basic understanding of synthetic positions and put-call parity.

Find market maker moves when researching trades with earnings announcements. Just use this handy TD Ameritrade thinkorswim® trading platform tool.

Learn about the VIX and other volatility indexes and how some investors use them to assess potential risk.

Learn about gamma, which some traders consider the positive side of negative theta.

Learn how to structure a trade designed for uncapped profit potential.

When stuck in a low-volatility environment, check out the term structure. You might consider alternative covered call strategies.

If you have a directional view on a stock price, buying a vertical spread might be for you. But deciding on strikes and strike widths requires some thought.

Learn about “black swan” events and how you can attempt to protect yourself and your portfolio from adverse shocks.

Learn the basics of put ratio spreads and how they can help you pursue your objectives.

Instead of hyper-focusing on one position at a time, look at your entire portfolio and try to figure out a better hedge—here's some tools and tweaks to help.

Some economic indicators create more noise than others—learn to create trading strategies based on how markets might react to economic data.

Learn how to assemble and follow an options trading checklist.

Looking for opportunities amid a low volatility trading environment? Learn about calendar spreads.

Learn some of the option trading alternatives you can use during earnings season.

Learn how a collar strategy—a covered call and a protective put—might be a cost-effective way to manage stock risk.

Learn about dividend risk, which options might be candidates for early exercise, and how you can potentially prepare for it.

An option's value tends to decay as expiration approaches. Learn how to incorporate time decay ("theta") into a trading strategy.

Learn how to stress test an options position by assessing changes in theoretical value under changes in volatility, time and price of the underlying.

The sensitivity of option prices to changes in time, volatility, and the price of the underlying are commonly referred to as “Greeks.” Here is an overview of

How using Kurtosis to study abnormal market behavior—in particular how it explains the price behavior of options—can aid in your strategy selection.

Learn how an trading an iron condor can be an effective options strategy during earnings season.

Managing risk variables you didn’t know you could control—lessons learned in 2016 about direction, time, and vol, and what mistakes to avoid this year.

In a low-vol environment, pairs trades may offer unexpected opportunities. Here's how to choose among many combinations of bullish and bearish positions.

Learn how to increase the flexibility of your existing options strategies with weeklys: options that move quickly and live for about a week.

Laddering price, volatility, and time can take covered calls to a new level—look to collect more premium and diversify across vol and time.

The market doesn't care who becomes president, and savvy traders don’t care about predictions—just results. Prepare yourself for either scenario.

Stocks can be expensive, no doubt, but that doesn’t necessarily mean you can’t participate in rallies. Learn how call options can act as a substitute for stoc

Why trading in high-priced stocks may be no riskier than their low-priced brethren, and how to calculate that risk with implied volatility.

When trying to select the right option strategies, which do you choose? Looking to IV percentiles for clues to VIX levels may help.

Zero skew, or even negative skew, can be favorable. Once skew starts rising, options traders might want to think twice before entering a calendar spread.

Periods of low volatility can last months and even years. When it happens, it has important implications for investment and options strategies.

When discussing the markets, there’s a common question among investors and traders: What’s your position?

For most traders, fear and uncertainty are primary factors that drive volatility in markets higher and lower.

Expand option market learning to weekly double calendars. They can increase in profitability if implied volatility rises.

Explore rolling options “losers” to extend duration for covered calls, naked calls or puts, one side of a short strangle, and select other trades.

Align your option vertical spread with the level and direction of implied volatility to position your trade for success.

The six-year-old rally has produced monster stocks. How do you get involved when the altitude makes your stomach quiver? Ratio spreads might be the answer.

Consider straddle/strangle swaps to better position for earnings. Use option strategies and charting tools to help navigate these vexing volatility events.

Check out short-term options pricing to gain a sense of how the underlying stock could move around an earnings release. You can track straddles or use the TD

Traders often think of options in small denominations because that’s how the bid/ask quotes appear. But beginning investors in particular must remember to use a 100x multiplier to help determine correct position sizes.

Picking months and strikes are big decisions for options traders. Do probabilities matter? We think so.

thinkorswim platform’s ® Today’s Options Statistics divvies up the market by call and put volume, delta values, historical volatility, and more.

Volatility has become easy shorthand for trading talk. But just below the surface, volatility can be confusing. Yet, when you look at it through different lenses, a few basic truths start to clear things up.

The first step to overcoming any fear is understanding what you're dealing with. With short-naked puts, that means understanding the strategy and the risks.

Trading earnings announcements can be a fool's game. When volatility is high, trends can break after a company announces. Consider a few volatility tricks.

Option prices can speak louder about the state of a stock than most analysts. You just have to listen and understand what they're trying to say.

Without stock and options volatility, there are no trading opportunities. So to revere it rather than fear it–you need just need to “get it.”

A guide to weeklys: Volume is swelling, and traders are using weekly options to speculate on very short-term moves, or simply as a hedge.

Diversification approaches for active traders to hedge non-systematic risk across spreads, including directional risk and time and vol.

If you own stock, and don’t want out, there are ways to protect yourself and still profit on upswings. When looking to make a few bucks sans stock, go simple.