Dealer gamma exposure from live options data every 60 seconds. Every trade classified. Where hedging has to buy, where it has to sell, and how much — in dollars.
Full platform for 7 days. Card required. Cancel before day 7 and pay nothing. $99/month after.
Live greeks recomputed for every ticker from live spot and live vol
Tickers — SPX, VIX, RUT, the major ETFs, every mega-cap, the most active names. Full list
Tools across structure, flow, stress and volatility. One price.
Market regimes classified every cycle, with transition detection
Not a course. Not a newsletter. A screen that's already populated before you've finished your coffee, and that keeps telling you what has to happen at every level all session.
Walls and flip for all 103 names. The session expected move fixed for the day. A Screener scan — Near call wall, Squeeze candidates, Building overnight — shows which names start pressed against a level.
Every strike's gamma captured as the day's baseline. From the first minute, every tool shows vs open. The Flow Tape starts classifying prints — opening or closing, and where each one landed against structure.
Hover the wall. It says what dealer hedging has to sell there, in dollars, if price gets there. That's the number that tells you whether the level is a wall or a suggestion.
Greeks every 60 seconds. Regime every cycle. Stress rising before price confirms it. Command's generated read summarizes the whole thing in a paragraph so you don't have to.
Most traders run a structure service in one tab and a flow service in another. Neither knows what the other is showing. Here's what changes when both come from the same live computation.
| Typical structure tools | Typical flow tools | Gamma Sonar | |
|---|---|---|---|
| Greeks | Refreshed on a schedule — minutes to hours — against a moving price | Not computed | Live greeks every 60 seconds from live spot and live vol, all 103 tickers |
| Opening vs closing | Not shown | Inferred from volume exceeding open interest | A calibrated model — aggressor logic, size, moneyness, time of day — scored against actual OI changes daily, with a confidence meter on every print |
| What a level means | A line and a label | Prints without structure | The obligation in dollars — what hedging must buy or sell there, to the next strike and per 1% move |
| Flow against structure | No flow | No structure | Every print placed at the call wall, the flip, or the put wall — and whether it built structure or unwound it |
| Change since open | Eyeballed from yesterday's snapshot | Session totals only | Baselines at the open and prior close on every strike, original vs live OI, so "building" and "bleeding" are measured |
| Regime | Positive or negative, if at all | None | Nine states classified every cycle, with a stress monitor that rises as a transition becomes likely |
| Subscriptions | One | Another | One. $99/month, every tool, every ticker |
A wall isn't resistance because someone drew a line there. It's resistance because this much supply is mechanically obligated to hit the tape if price gets there. Gamma Sonar states that number at every strike, every 60 seconds, so you know which levels are walls and which are suggestions — and you can watch the number shrink in real time when the wall is being unwound.
Every screen answers one question from a different angle: what are dealers obligated to do, where, and how much? Full tool reference.
The ladder. Every strike, every greek, on one page. Signed bars for gamma, delta, vanna and charm; original open interest beside live; walls and the flip drawn as rules; the expected-move band tinted.
Every print, classified as it lands: execution type, aggressor side, dealer impact, and opening versus closing from a calibrated model with a confidence meter — not the volume-over-OI guess.
All 103 names on one row each: regime, a structure position bar from put wall to call wall, stress, flow pressure, net premium, OI change, skew and 0DTE share.
Vol and time stated as obligations. If implied vol falls a point, dealer hedging needs to buy or sell about this much. Every session that passes, about this much as delta decays.
Where the gamma actually sits across time. A strike × expiry heat map for gamma, OI, delta, vanna or change since open — so you can see whether the wall is a 0DTE artifact or monthly conviction.
One hundred and two seconds, one continuous take, no voiceover. Command, the Pressure Field with the obligation readout open, the Flow Tape classifying prints, the Screener, and the Term Structure Map in 2D and 3D — the platform doing what it does on a normal day.
If it doesn't look like something you'd have open at 9:31, don't start the trial.
Moves get dampened. Dips meet buying, rallies meet supply, and the range compresses around the structure.
The largest positive strike is the call wall. Gamma Sonar tells you what dealers have to sell there, in dollars, if price gets there.
Moves get amplified. Hedging sells into weakness and buys into strength, and every push gets pushed further.
The largest negative strike is the put wall. Below the flip, the whole tape trades differently — and the regime tells you before price does.
The same level means different things in different regimes. A call wall in Compression is resistance to fade; in Escape velocity it's a breakout to respect. The regime tells you which kind of tape you're in before you look at price. The mechanics are covered in depth in the free Academy.
Trades and quotes from all 18 U.S. options exchanges through a commercial ThetaData feed, with live index and equity spot alongside.
Recomputed for every ticker in the universe from live spot and live implied vol — not yesterday's greeks against today's price. SPX runs on the fastest cycle.
The full options trade stream processed as it prints: execution type, aggressor side, dealer impact, and opening versus closing from a calibrated model scored against actual open-interest changes each day.
Every strike's gamma captured at the open and at the prior close, and original open interest beside live, so "vs open" and "vs yesterday" are measured, not eyeballed.
Dailies, weeklies, monthlies and quarterlies on the board, selectable in any combination. Session history persists through reconnects and restarts.
103 tickers: SPX, VIX and RUT; SPY, QQQ, IWM, DIA and the major sector, macro and leveraged ETFs; every mega-cap; semis, banks, fintech, crypto proxies and the most active single names. Any ticker can be selected in any tool; the Screener scans all of them at once.
One plan. Every tool, every ticker. No tiers, no add-ons, no data upsells.
The structure side and the flow side of this market are usually sold as two subscriptions. This is both, from one live computation, for less than a single SPX contract's premium on most days.
The first-session tour walks you through the market strip, the regime, the ladder and the flow in about five minutes. Every tool ends with a one-line read in plain language. If you already follow gamma levels, you'll be at home in a session.
No. Levels are the starting point. The difference is what happens at them: the obligation in dollars, whether flow is building or unwinding the level, the regime it sits in, and whether stress is rising. Those are the parts nobody else computes.
Cancel before day 7 from your account and you're never charged. Cancel later and your access runs to the end of the period. No forms, no calls.
Because the trial is the full platform on live data, and live options data isn't free for us to serve. The card is how we give you everything instead of a demo. You'll know whether it belongs on your screen well before day 7.
Card required. Cancel before day 7 and pay nothing.
Gamma Sonar LLC is a publisher of market-structure analytics, not an investment adviser. Nothing here is personalized advice.
Forty-six chapters across three courses — from your first options trade to institutional volatility. No signup, no paywall. When the mechanics click, the platform will make sense in an afternoon.
When customers buy options, dealers sell them and must hedge. Gamma exposure is how much those hedges have to change as price moves — the mechanical buying and selling that structures the day. Gamma Sonar computes it from live open interest and live greeks. Read the full explainer.
Live greeks every 60 seconds instead of stale snapshots; every trade classified with a calibrated opening/closing model; obligations stated in dollars; flow placed against structure; baselines versus the open and the prior close. Most services show a level. Gamma Sonar shows what has to happen there and whether it's being built or unwound.
No. It describes what dealer hedging is obligated to do and how much. The expected move is the options market's own range estimate, not a forecast.
103 tickers: SPX, VIX and RUT; SPY, QQQ, IWM, DIA and the major sector, macro and leveraged ETFs; every mega-cap; semis, banks, fintech, crypto proxies and the most active single names. See the full list. Any ticker can be selected in any tool; the Screener scans all of them at once.
Greeks and structure every 60 seconds per ticker, with SPX on the fastest cycle. Flow prints in real time. Levels and regime recompute every cycle.
Consolidated OPRA options trades and quotes from all 18 U.S. options exchanges through a commercial ThetaData feed, plus live index and equity spot.
No. One plan, $99/month, every tool, with a 7-day free trial. Card required at checkout; cancel before day 7 and you're never charged.
Yes. A Pine Script is regenerated every morning with the day's walls, flip, GVWAP and expected move for the universe. Setup guide.
No. Gamma Sonar is a publisher of market-structure analytics. Nothing on the platform is personalized advice or a recommendation to buy or sell any security.