Implied volatility surface
Visualize implied volatility across strikes and expirations in one view. The surface makes volatility skew, the smile, and term structure obvious at a glance — so you can see how the market is pricing risk before you trade.
What the surface tells you
Skew & smile
How IV shifts across strikes — often richer for downside protection.
Term structure
How IV changes from near-dated to longer-dated expirations.
Relative value
Spot strikes and expirations where volatility looks rich or cheap.
Common questions
What is an implied volatility surface?
It is a 3D view of implied volatility plotted across two axes — strike price and time to expiration. It shows how the market prices volatility for different options on the same underlying at once.
What are skew, smile, and term structure?
Skew and smile describe how IV changes across strikes for a single expiration (often higher for downside puts). Term structure describes how IV changes across expirations. The surface shows all three together.
Is the tool free?
Yes — you can explore the implied volatility surface for free; an account is only needed to save views.
Learn the concepts
Read the volatility concepts the surface is built on.
Implied Volatility: What Moves Option Prices
Implied volatility (IV) in plain English: how it affects premiums, vol crush, vega, and examples on a $100 stock before earnings.
Vega Explained: Implied Volatility and Premium
How vega links option prices to implied volatility, IV crush after events, and which strategies win or lose when IV moves.
Expiration Dates and Theta (Time Decay)
How option expiration works, why time value erodes (theta), weeklies vs monthlies, and $100 stock examples for long and short options.
How to Read an Options Chain
Options chain columns: bid, ask, volume, open interest, expirations, strikes, IV, and how to scan calls and puts on a $100 stock.
Keep exploring
Put it to work in the options payoff calculator, model a bull call spread, or read the free guides.
ThetaViz is an educational visualization tool. Market data is for educational use only and this is not financial advice.