How we decode the dealer — and why it tells us something about today

The idea in one paragraph

Every trading day, a large share of S&P / ES price action is shaped not by opinion but by mechanics — the hedging that options dealers are forced to do to stay neutral. Those mechanics are partly readable from the options market. We read them, translate them into a single falsifiable call about the day's character — will the market expand or compress — map the price levels where dealer activity concentrates, and then grade ourselves in public. That's the whole product: a daily map of the field, not a tip on which way to bet.

01Decoding the dealer

Who the "dealer" is, and why their hedging moves your chart.

When you buy or sell an option, someone takes the other side — typically a market maker, the "dealer." Dealers don't want a directional bet; they want the spread. So they continuously hedge their options book by buying and selling the underlying (ES / SPX futures). That hedging is not optional and not discretionary — it's a mechanical response to where price is relative to the strikes they're exposed to. Enough of it happens at size that it leaves a footprint on intraday behavior.

The key variable is gamma — how fast a dealer's hedge needs to change as price moves. The sign of dealers' aggregate gamma flips the market's personality:

"Decoding the dealer" means estimating which of these worlds we're likely in today, at the open — and where the pressure points sit.

02The daily call: expansion or compression

We compress all of that into one deliberately narrow, deliberately testable statement each morning: is today set up to expand (trend / break) or compress (chop / pin)?

We lead with this — the volatility regime — rather than a directional "buy or sell," for two reasons. First, it's the part our own data supports most strongly: the link from dealer positioning to whether a day expands or compresses is more reliable than a link to which direction it goes. Second, it's honest about what's knowable. Direction is genuinely hard; the day's character is more often legible in advance. So we publish the legible thing and let you apply your own direction.

The call is a probability statement about the day's behavior, not a prediction of a price. It tells you which playbook is favored — trade-the-trend or fade-the-edges — not where to put an order.

03The dealer map: key levels

Regime tells you how the day is likely to move; the dealer levels tell you where it's likely to react. These are prices where dealer hedging tends to concentrate, so they act as magnets, boundaries, or pivots. We publish them as a map, with the role of each:

• Call Wall — a zone of heavy upside dealer exposure; often acts as supply / an upside magnet that caps or slows rallies.
• Put Wall — the downside counterpart; often acts as demand / a downside magnet that cushions or slows selloffs.
• Gamma Flip — the pivot where dealer positioning tends to change sign. Above it the day often behaves more stable; below it, more volatile. It's the line that can neutralize or confirm the regime call intraday.
• Settlement — an end-of-day gravity point that price often drifts toward into the close, especially on heavy expiry days.

None of these is a signal to act. They're the terrain. What you do at a level depends on the regime: in compression a failed push at a wall is a classic fade; in expansion the same level breaking on volume is a continuation tell.

04Converge points: where the evidence stacks

This is the idea the desk is named for.

Any single level is just one reason for price to react — and one reason is weak. A converge point is a price where several independent reasons line up at once: a dealer level, a prior-session high or low, an overnight extreme, a settlement magnet, a structural boundary. When those agree on the same price, that price carries more weight than any of them alone, because traders and mechanics from different corners of the market are all pointed at it.

So instead of treating each level in isolation, we look for confluence — clusters where the map overlaps. The more independent evidence that stacks at a price, and the closer it is to where we're trading, the more it earns attention. Those clustered prices are the converge points; they're where reactions are most likely and where the regime call has the most to say.

We'll tell you that levels converge and why they matter. The exact scoring — how we weight and rank the evidence — is the part we keep in-house. Think of this page as the map legend, not the survey equipment.

05What this is — and what it isn't

• It is research and decision support: a daily read on the day's likely character and the levels that matter, so you can size, time, and pick your playbook with better context.
• It is conditional: scenarios framed as "if price accepts above X… / if it breaks below Y…", because the dealer book is a set of pressures, not a crystal ball.
• It is not trade signals, entries, exits, or "buy/sell" calls. We don't tell you what to trade.
• It is not a prediction of where price will close, and it is not financial advice. Futures and options carry substantial risk; your decisions are your own.

06We grade ourselves in public

A daily call that's never scored is just noise with confidence. So every morning's regime call is graded at the next session's close, objectively and automatically, and the running record is published on the public scorecard.

The grade is mechanical: at the close we measure the session's realized volatility over regular trading hours and compare it to its own recent trailing median. If the day was more volatile than that baseline, it realized as expansion; if calmer, as compression. Then we mark the morning call HIT-or-miss against what actually happened — no cherry-picking, no quiet edits. We also show the base rate, so you can see whether the call is adding real skill above a coin flip, not just riding a streak.

The scorecard is the spine of the product. It's how we earn the right to charge, and it's the first place a bad stretch will show — on purpose. That honesty is the moat.

07Honest limitations

We'd rather tell you the edges of what we know than oversell it:

• Dealer positioning is an estimate built from options data, not a direct readout of every desk's book. It's a strong signal, not a perfect one.
• An edge measured in-sample is not the same as forward edge. The public scorecard exists precisely so the market — not us — decides whether the call holds up over time.
• Regimes can shift intraday. A clean compression morning can flip if price accepts through the gamma flip; that's why we publish what to watch for, not just a static verdict.
• No edge is permanent. Positioning crowds, mechanics change, and we expect to keep adapting the method. When the scorecard says something stopped working, we'll say so.