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GEX and VEX

GEX is what dealers do when price moves; VEX is what they do when volatility moves. Why the two look alike on a price chart, and how to hold them apart.

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The question, asked plainly

Someone put it better than we had:

"Gex is what dealer does when price moves and Vex is what dealers does when volatility moves. If I were to imagine in the trading view charts I see it moving the same way. I am having difficulty visualizing volatility and price in that context."

That is a fair question, and the confusion belongs to the subject rather than to you. On a price chart the two really do look like the same thing. Here is why, and how to hold them apart.

Start with who is on the other side

When you buy an option, somebody sold it to you. That somebody is usually a dealer, and a dealer makes money on the spread rather than on your direction. What they want is a flat book.

So the moment they sell you that option they are carrying a position they would rather be rid of, and they cancel it out by buying or selling shares against it. And once is only the start of it. Continuously, all day, as conditions change.

Every one of those adjustments is a real order hitting the tape. That is the whole idea behind both lenses. This is mechanics rather than sentiment. We are looking at where somebody will be forced to trade regardless of how they feel about it.

Two different things set them off

Here is the part that answers the question.

There are two separate things that change how much stock a dealer needs to hold, and keeping them apart is the whole trick.

The first is where price is. Price moves, their exposure changes, they adjust to match. That one is GEX.

The second is what protection costs. If the market suddenly starts paying up for options, the value of everything they hold shifts and they have to adjust for that too. That one is VEX.

The second one is the hard one to picture, because it can happen while price sits perfectly still.

The insurance version

Think of the dealer as an insurance company that has written flood cover on a street of houses.

Again, two things change how exposed they are, and only one of them is visible to you.

The river rises. The water is closer to the houses. That is a change they can see on a map, and it is the one you can see on your chart. That is GEX.

The forecast changes. Not a drop of rain has fallen and the river has not moved an inch, but the weather service has just said the next fortnight looks bad. Every policy on that street is suddenly worth more, and the insurer has to do something about it today. That is VEX.

The river is price. The forecast is volatility. The houses have not moved and the insurer is still busy.

Why they look identical on a chart

Because most days they move together, and because your chart only draws one of them.

When price drops hard, protection usually gets more expensive at the same moment. Two causes, one candle. The chart carries one of them, so the separation has to come from somewhere else. TradingView draws price. The cost of fear needs a line of its own.

That is the honest answer to "I cannot visualize it." From that screen it stays invisible. It is a second dial, and it takes its own instrument.

The day they come apart

The clearest one to picture is the day after something big.

An earnings print, a Fed meeting, an inflation number. The event happens. The next morning price opens, drifts, and closes almost exactly where it started. Flat, boring, quiet.

But everyone who held protection through the event is done with it. The cost of that protection falls all day. Dealers spend the session adjusting to a change your chart never showed you.

That is a day with a small GEX story and a large VEX one. Once you have seen a few, you start spotting them.

How to hold the two of them

GEX is the road under the wheels. Right now, this move, this level, the next hour.

VEX is the weather. It decides what kind of day you are driving in, and it shows up over hours and days rather than in the next ten minutes.

One sentence, if you only keep one:

The board tells you where the pressure sits. The volatility read tells you whether the day will let that pressure matter.

What Compass does with them

The map and the ladder are built on the first lens. Levels, the King, the field: those describe where dealers have to act as price moves.

The volatility side sits in two places. The VEX lens in the Telescope, which is a longer-horizon view rather than an intraday one. And the session volatility line on the Map, which tells you whether the cost of protection has come in or gone out since you started watching.

That line is marked as a condition, and it means what it says. We are showing it and recording it, and scoring it is something we still have to earn. When it has enough sessions behind it, we will say what it is worth, whichever way that comes out.

Where both lenses stop

Both of them stop at direction.

A dealer being forced to buy tells you about pressure and friction; where the day ends is a separate question with a separate answer. Anybody who tells you a volatility reading hands them a target is selling you something.

If a part of this is still murky, say so in compass-support. This page exists because somebody asked.

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