Knowledge Center
Master the mechanics behind every market move. From gamma exposure fundamentals to advanced dealer positioning strategies.
Vol Risk Premium (VRP)
A simple test for whether options are expensive or cheap right now. Tells you when to sell premium and when to back off.
OPEX (Options Expiration)
The 3rd Friday of every month is a big deal. Tons of options expire and the people hedging them have to unwind their positions. Here is what happens and why you should trade lighter into it.
Vol Trigger
An amber pill on the Gamma tab showing the price where dealer hedging changes from calming the market down to amplifying moves. Above it, sell premium. Below it, buy gamma.
Replay Scrubber
A time machine for the Gamma tab. Drag it to see what dealer positioning looked like at any moment in the last 30 days. Use it to figure out if a big move was caused by dealer hedging or something else.
Dealer Flow Tape
A scrolling line that shows whether market makers have been net buying or selling all day. Green means buying. Red means selling. Use it to gauge intraday pressure.
Vol Regime: The Trader's New Compass
VIX is a number. Vol regime is the weather system the number is sitting inside. Knowing the regime tells you which strategies make sense and which ones are about to get carried out on a stretcher.
The Four Vol Regimes: How to Tell Which One You're In Right Now
A practical, no-PhD framework for spotting which volatility regime the market is in today. Use it to pick the right strategy and avoid getting stretchered out by the wrong one.
Pinning: The Oldest Edge That Still Works
Before there was Twitter, before there was 0DTE, traders already noticed that stocks like to close at round option strikes on expiration days. Why this old quirk survived everything and how to use it.
What 'Alpha' Used to Mean, and What It Means Now
The word 'alpha' has been kicking around since the 1960s. What it originally meant is not what most traders think it means today. A short, opinionated history of a much-abused term.
How Market Structure Quietly Changed Under Your Feet
Pull up a chart of SPY from 2008 and one from today. They look the same. The wiring underneath is completely different, and that quiet rewiring is why the old playbooks keep failing.
Why Single-Stock Trading Is Now Mostly an Options Story
TSLA, NVDA, GME, COIN. The names that move the most no longer trade on fundamentals or even sentiment. They trade on their own option chains. Here is how that happened and what to do about it.
Why Volatility Is the New Asset Class
Vol used to be a side effect of trading the underlying. Now it is its own market, with its own products, its own term structure, and its own returns. Welcome to thinking in volatility-space.
From CAPM to Regime: How Pro Traders Stopped Using Static Models
Sixty years ago we thought a single number (beta) explained returns. Then it was five factors. Then a hundred. Then regime models. Here is how the toolkit kept getting bigger, and why nothing static survives anymore.
The Death of Edge: Why Alpha Keeps Getting Harder to Find
Every edge that has ever existed eventually got arbitraged away. The story of trading is the story of edges dying. Here is the short tour, and why the next edges look nothing like the last ones.
The Mechanical Market: Why Half of Every Move Isn't About News
Every time price moves, someone on CNBC tries to explain it with a story. The dirty secret is that a huge share of intraday moves are mechanical, not narrative. Here is how to tell which is which.
Why 0DTE Options Changed Market Structure
Zero-day-to-expiration (0DTE) options have transformed US equity index market structure by concentrating gamma and charm into the current session, making dealer hedging flows the dominant driver of intraday price action in SPX and SPY.
ChartGEX vs. SpotGamma, MenthorQ, and Unusual Whales: An Honest Comparison
A factual, use-case driven comparison of SpotGamma, MenthorQ, Unusual Whales, and ChartGEX, written by ChartGEX with methodology transparency and trade-offs clearly disclosed so traders can choose the right options-analytics platform for their style.
How ChartGEX Detects Dealer Structure: An Open Methodology
A fully disclosed, end-to-end walkthrough of ChartGEX’s dealer-structure detection signal: six statistical features, a logistic combiner, correlation-aware Bonferroni correction, and volatility-regime conditioning, all calibrated into a continuous probability between 0 and 1.
Your First Trade with GEX: A Practical Workflow
Turn GEX concepts into a repeatable trading workflow. Learn how to use gamma regimes, walls, vanna, and charm as a structural filter that aligns your existing strategy with dealer flows.
How to Read the ChartGEX Dashboard in 5 Minutes
Learn how to read every key panel on the ChartGEX dashboard in under five minutes: gamma regime, structural levels, dealer flows, volatility, and dark pool signals—plus a simple pre-session checklist.
The Greeks Explained: Delta, Gamma, Vanna, and Charm
Learn how delta, gamma, theta, vanna, charm, and vega drive dealer hedging flows—and how ChartGEX visualizes these forces so you can read the options market like a professional.
Dealer Positioning: The Hidden Force Behind Every Price Move
Dealers (market makers) hedge options exposure in ways that mechanically push, pull, and stabilize price. This article explains who dealers are, how delta and gamma hedging work, and how ChartGEX visualizes these flows so you can trade with structure instead of hope.
What Is Gamma Exposure (GEX) and Why It Moves Markets
Gamma exposure (GEX) explains why markets often reverse, accelerate, or pin to specific prices. By tracking how dealers hedge options positions, GEX reveals where mechanical buying and selling pressures appear in the order book.
Options 101: The Building Blocks Every Trader Needs
A plain-language guide to the core options concepts that power gamma exposure, dealer positioning, and every ChartGEX dashboard.