Independent options-market research
★
Menu
Stocks Expected Moves Volatility Earnings Market Dashboard Options Activity Screener News
Learn & Tools Learn Ask the Data AI Agents Methodology ★ Saved API
About About us Contact Disclaimer
View options
Dark mode

Guided View
New to markets? Prices, yields, YTD, market cap. We explain every term as you browse, in plain English. Same data, with the help built in.

Expert View
You already know the market. Just the data: clean, fast and compact, with no extra explanations. This is the default view.

Interface language
DATA API

Free read-only JSON access to summary metrics, rate-limited.

6 lessons about 21 minutes 12 quick checks final check: 8 questions Free, no sign-up

The number inside every option price — implied, realized, and how to compare them.

Your progress0/6 lessons

Start the course →

By the end you will be able to

  • Explain what implied volatility measures and scale an annual figure to a shorter horizon.
  • Compare implied with realized volatility, and IV rank with IV percentile.
  • Read skew across strikes and the term structure across expirations.
  • Explain what the VIX measures and what it does not.

Syllabus

work through in order; each lesson ends with a short check
  1. ✓ Implied volatility (IV)The market's consensus estimate of how much a stock will move, extracted from option prices. 3 min
  2. ✓ Historical (realized) volatilityHow much a stock has actually moved, measured from past daily closes and annualized for comparison with implied volatility. 3 min
  3. ✓ IV rank and IV percentileTwo ways to judge whether a stock's current implied volatility is high or low relative to context. 3 min
  4. ✓ Volatility skew and smileWhy options at different strikes on the same stock trade at different implied volatilities. 3 min
  5. ✓ The IV term structureHow implied volatility differs across expiration dates, and what the shape of the curve reflects. 3 min
  6. ✓ The VIXCboe's 30-day implied volatility index for the S&P 500, and what its level does and does not mean. 3 min
  7. ★ Final check8 questions · pass mark 6/8 · unlocks when every lesson check is done 4 min

Other courses

Your progress is saved in this browser only; clearing site data resets it. Educational content only: nothing in these courses tells you what to trade. Time estimates assume about 200 words a minute.

Consumer Cyclical

ABNB · Airbnb, Inc.AMZN · Amazon.com, Inc.AZO · AutoZone, Inc.BABA · Alibaba Group Holding…BBY · Best Buy Co., Inc.BYD · Boyd Gaming CorporationCAVA · CAVA Group, Inc.CCL · Carnival Corporation & plc

ETF

ARKK · ARK Innovation ETFBITO · ProShares Bitcoin ETFDIA · State Street SPDR Dow…EEM · iShares MSCI Emerging…EFA · iShares MSCI EAFE ETFEWZ · iShares MSCI Brazil ETFFXI · iShares China Large-Cap ETFGDX · VanEck Gold Miners ETF

Technology

AAPL · Apple Inc.ADBE · Adobe Inc.AI · C3.ai, Inc.AMAT · Applied Materials, Inc.AMD · Advanced Micro Device…APP · AppLovin CorporationARM · Arm Holdings plc Amer…ASML · ASML Holding N.V.

Financial Services

AFRM · Affirm Holdings, Inc.ALL · The Allstate CorporationALLY · Ally Financial Inc.AXP · American Express CompanyBAC · Bank of America CorporationBLK · BlackRock, Inc.BX · Blackstone Inc.C · Citigroup Inc.

Industrials

AAL · American Airlines Gro…BA · The Boeing CompanyCAT · Caterpillar Inc.CMI · Cummins Inc.DAL · Delta Air Lines, Inc.DE · Deere & CompanyEMR · Emerson Electric Co.ETN · Eaton Corporation plc

Consumer Defensive

CELH · Celsius Holdings, Inc.CL · Colgate-Palmolive CompanyCOST · Costco Wholesale Corp…DG · Dollar General CorporationDLTR · Dollar Tree, Inc.EL · The Estée Lauder Comp…GIS · General Mills, Inc.HSY · The Hershey Company