HeroTop tier
The single highest-premium bucket in the window. The print everyone else is fading or following, rendered with a violet glow and 700 weight.
$NVDA $894$391M · 46%
Darkpool
Off-exchange.On the tape.
Darkpool streams off-exchange prints from every U.S. ATS venue, bins them into transparent price levels, and tiers each one as Hero, Magnet, Support, or Resistance. The block, before the rotation.
Top ticker$NVDA
Total notional$847M
Largest print$111.7M
Rows visible218
All prints$50M+$100M+$300M+Ticker search
| Time | Ticker | Price | Size | Premium | Exch · TRF · Tape | Conditions |
|---|---|---|---|---|---|---|
| 11/24 14:32:08 | NVDA | $894.12 | 125,000 | $111.7M | ATS · D · C | @FTI |
| 11/24 14:31:54 | SPY | $580.42 | 96,500 | $56.0M | ATS · D · B | @F |
| 11/24 14:31:21 | QQQ | $478.18 | 144,200 | $69.0M | ATS · D · B | @FTI |
| 11/24 14:30:47 | AAPL | $232.84 | 210,000 | $48.9M | ATS · D · A | @F |
| 11/24 14:30:12 | MSFT | $428.71 | 85,000 | $36.4M | ATS · D · A | @FTI |
| 11/24 14:29:55 | META | $618.04 | 52,800 | $32.6M | ATS · D · A | @F |
Every print with venue, TRF, tape, and SIP conditions. Live tape, 45-second refresh.
The 2×2 dashboardmost platforms don't have.
Switch to Snapshot and Darkpool stops being a tape and starts being a map. Leaderboard, premium distribution, candles with level overlays, and a key-levels table, all recomputing as you switch the window.
$NVDA$894.12218 prints · $847M total notional15m1hTodayFocus mode
LeaderboardPremiumPrintsCluster
- 01$NVDA125 prints$847M
- 02$SPY96 prints$612M
- 03$QQQ88 prints$498M
- 04$AAPL72 prints$384M
- 05$MSFT58 prints$321M
- 06$META44 prints$268M
Premium Distribution$NVDA · Today
- $894 · Hero46%
- $89026%
- $88616%
- Other12%
Chart · level overlays$NVDA · 5m
Hero · $894Magnet · $898Supp · $886Res · $890
- Hero
- Magnet
- Support
- Resistance
Key LevelsTop-premium row highlighted
| Level | Strength | Δ Spot | Prints | Premium |
|---|---|---|---|---|
| $898 Magnet | +0.44% | 22 | $148M | |
| $896 @ spot | +0.21% | 14 | $96M | |
| $894 Hero | 0.00% | 38 | $391M | |
| $890 | −0.46% | 18 | $118M | |
| $886 | −0.91% | 12 | $74M |
Four terms.One vocabulary.
Hero, Magnet, Support, Resistance. Cortex narrates dark prints using these terms; the dashboard renders them with the same colors and weights. One word per concept, no glossary required.
MagnetLiquidity pull
The largest premium cluster sitting >0.5% away from spot. Institutional liquidity pulling price toward it, rendered with the gold accent.
$NVDA $898$148M · +0.44%
SupportBelow spot
The closest premium-tier level below spot. Where the desk has reason to defend on weakness; first place to lean on a flush.
$NVDA $890$118M · −0.46%
ResistanceAbove spot
The closest premium-tier level above spot. Where the desk has reason to sell into strength; first place sellers re-emerge.
$NVDA $896$96M · +0.21%
These four terms are the Darkpool half of the Trade Echo Lexicon. Cortex narrates dark prints with the same vocabulary - Anchor and Cortex Wall sit on the options side; Hero and Magnet sit on the tape side.
Raw prints becometradeable levels.
Every print is binned into a transparent price bucket at ingest. The bucket aggregates total notional, print count, and timestamp - that's what powers the leaderboard, the donut, the chart overlays, and the key-levels table.
$0.50 bucket
Tightest grid on the highest-volume tickers. $580.00, $580.50, $581.00 …
$1.00 bucket
Standard institutional grid. $894, $895, $896 …
$0.10 bucket
Tighter grid for sub-$100 names. $42.10, $42.20, $42.30 …
No raw-tape spam. Every bucket is a real piece of liquidity, sized by notional, ranked by recency, tiered by the Lexicon.
Three windows.One screen.
The chart, the levels, the leaderboard - they all switch when you switch the window. Walk the whole session, the last hour, or the last fifteen minutes.
WindowToday
- 01$NVDA$847M
- 02$SPY$612M
- 03$QQQ$498M
- 04$AAPL$384M
Full session · 218 prints on $NVDA
Window1h
- 01$NVDA$284M
- 02$QQQ$162M
- 03$SPY$148M
- 04$META$96M
Recent build · 62 prints on $NVDA
Window15m
- 01$NVDA$148M
- 02$QQQ$72M
- 03$AAPL$48M
- 04$SPY$32M
Right now · 22 prints on $NVDA
Every aggregation recomputes instantly when you switch the window. The Hero on the day isn't always the Hero in the last fifteen minutes, that's the point.
Two sources.Both on the tape.
The live feed is for intraday signal. FINRA's official weekly aggregates are for trend and compliance reference. Cortex exposes both and tells you when the data is stale.
Live Darkpool feedSub-minute · per-print
Off-exchange prints from U.S. ATS venues, ingested as they hit the SIP tape. 45-second auto-refresh during market hours. Full per-print enrichment.
- Ticker, price, size, premium, venue, TRF, tape, SIP conditions
- Volume context - % of today's volume and 30-day average
- Sector + issue type - SIC sector + CS/ADRC/ETF/ETN tag
- Bucketed into Hero / Magnet / Support / Resistance at ingest
Cortex toolget_dark_pool_data
FINRA ATS volumeDelayed · 1-2 weeks
The official FINRA weekly ATS aggregates by venue. Delayed 1-2 weeks. Used for trend, compliance reference, and Cortex agent ground truth.
- Per-venue weekly share volume
- Multi-week trend across all reporting ATS
- The honest reference dataset - not real-time
- Cortex names the lag when it serves this data
Cortex toolget_finra_ats_volume
Cortex exposes both as tools, get_dark_pool_data for the live feed and get_finra_ats_volume for the delayed weekly. The agent knows the difference and tells you when the data is stale.
One print.Five lenses for it.
Other dark-pool feeds hand you the print. Trade Echo hands you the print, the dealer map, the flow score, the algo footprint, and an AI that can narrate it.
1. Darkpool
The print itself
$NVDA · 125,000 sh · $894.12 · $111.7M · ATS · D · C.
Level · Hero
2. OptionFlow
The flow score
Same ticker's options Flow Score, tier, and 30-day baseline ratio.
Lens · Conviction
3. DealerEdge
The dealer map
Anchor, Flip, and Cortex Wall on $NVDA around the same level.
Lens · Positioning
4. AlgoEdge
The algo footprint
Coincident hits in Large Trades and Momentum channels.
Lens · Confirmation
5. Cortex
Ask, or automate
Tool
get_dark_pool_data, or chain it viamulti_signal_scan.Tool ·
multi_signal_scan
Detection · Aggregation · Positioning · Confirmation · AI, one subscription
Built for everyseat at the desk.
Follow the build.
Open Snapshot. Watch the Magnet form across a week, then a session, then an hour. Get in where the desk has size at the level.
Surface · Snapshot + Magnet
Confirm with flow.
Pair the live feed with OptionFlow on the same ticker. A Hero level plus a Golden-tier print is the rare confirmation worth sizing into.
Surface · Flow + OptionFlow cross-ref
Hunt the Hero.
Save the names you watch. When a single bucket pulls 40%+ of a ticker's notional in the window, you'll know. That's the Hero.
Surface · Hero level + saved tickers
Run it through Cortex.
The multi_signal_scan agent pulls Darkpool, OptionFlow, DealerEdge, and AlgoEdge in parallel. Ask once, get four lenses back.
Surface · Cortex multi_signal_scan
The print is the floor.The dashboard is the moat.
Dark-pool feeds on their own are commoditized. Trade Echo aggregates every print into a per-ticker map, names every level, and lets a Cortex agent narrate the whole thing.
Darkpool on Trade Echo
This product- Flow + Snapshot modes - live tape and per-ticker dashboard.
- Hero · Magnet · Support · Resistance - every level named.
- Price-bucketed aggregation - $0.50 / $1.00 / $0.10 by price band.
- Cross-window switching - Today / 1h / 15m, recomputed live.
- Per-print enrichment - volume context, sector, SIP conditions.
- FINRA ATS exposed separately, lag named honestly.
- Cortex agents pull both via
multi_signal_scan. - $199/mo · bundled with five other products.
Detection · Aggregation · Lexicon · AI
Standalone dark-pool feeds
Stream only- Per-print stream.
- No per-ticker aggregation dashboard.
- No level classification vocabulary.
- No cross-window switching.
- No AI layer reading the prints.
- No cross-module enrichment.
- Priced separately from flow, GEX, algos.
Stream only
Broker T&S + spreadsheets
DIY- Free, sort of.
- Raw prints - no buckets, no levels.
- No Hero, Magnet, Support, Resistance.
- No per-ticker dashboard, no window switching.
- No Cortex narration, no agents.
- Your weekend goes to research.
Tape only
Quick answers.
What is Darkpool?
Darkpool ingests off-exchange prints from U.S. ATS venues as they hit the SIP tape, then exposes them through two modes: Flow is the live per-print stream - Time, Ticker, Price, Size, Premium, Exchange, TRF, Tape, Conditions. Snapshot is the per-ticker dashboard - a leaderboard, a premium-distribution donut, a candlestick chart with level overlays, and a key-levels table. Every level is named Hero / Magnet / Support / Resistance.
What's the difference between Flow and Snapshot?
Flow is the live tape - a 9-column print stream, filtered by notional tabs ($50M / $100M / $300M / All), with ticker search and 45-second auto-refresh. Snapshot is the same data aggregated by ticker into a 2×2 dashboard: leaderboard, donut, chart with level overlays, key-levels table. Snapshot has a Today / 1h / 15m window switcher; every aggregation recomputes instantly.
What are Hero, Magnet, Support, Resistance?
The four-term Darkpool Lexicon:
- Hero - the single highest-premium bucket in the window. Rendered with the violet glow.
- Magnet - the largest premium cluster more than 0.5% away from spot. Gold-accented.
- Support - the closest premium-tier level below spot.
- Resistance - the closest premium-tier level above spot.
What's the price bucketing, and why?
Every print is binned into a price bucket at ingest. $SPY / $QQQ use $0.50 buckets, price ≥ $100 uses $1.00 buckets, price < $100 uses $0.10 buckets. Each bucket aggregates total notional, print count, total size, and the latest timestamp. That's what powers the leaderboard, the donut, the chart overlays, and the key-levels table - no raw-tape spam, every bucket a real piece of liquidity.
What's the difference between the live feed and FINRA ATS data?
The live feed is per-print, sub-minute, refreshed every 45 seconds during market hours - the intraday signal. FINRA ATS is the official weekly per-venue aggregate, delayed 1-2 weeks - the trend and compliance reference. Cortex chat exposes both as separate tools (
get_dark_pool_data for live, get_finra_ats_volume for delayed) and names the lag when it returns FINRA data.Is Darkpool on mobile?
Yes. Same feed, card-stream layout instead of a table, pull-to-refresh, infinite scroll, and Excel export via the iOS share sheet. The Snapshot dashboard's chart popup is desktop-only; the rest of Snapshot mode renders fine on mobile. iOS and Android.
Nine more lenses on the same tape.
- OptionFlowInstitutional options flow scanner with the signed Flow Score on every print.
- DealerEdgeGEX heatmaps with Anchor, Flip, Cortex Wall, and Defense Line levels.
- AlgoEdgeInstitutional algo trade detection sorted across nine channels.
- PulseCharting with GEX, dealer level pills, alerts from drawings, and session replay.
- FuturesThe Echo Map: profile, delta, CVD, tape, and dealer gamma for 9 CME roots.
- CortexAI analyst with chat, scheduled agents, and a community marketplace.
- DiscoverySeven scanners that return only the setups that cleared a bar, each scored.
- News EdgeA live newswire filtered by channel, tagged to tickers, streaming as it prints.
- Copy TradingMirror a vetted pilot's broker-linked trades into your own account.
How Trade Echo stacks up.
- vs Unusual WhalesFlow plus GEX, dark pool and AI in one plan.
- vs FlowAlgoFlow + dealer gamma in one bundle, not separate seats.
- vs Cheddar FlowReal-time flow with Cortex AI on top.
- vs Skylit HeatseekerSingle-stock GEX on 1,300+ tickers for $500/mo less than Skylit Pro.
- vs SpotGammaReal-time GEX map and four greeks lenses at one flat rate.
Start trackingthe dark.
Every Trade Echo Pro subscription includes Darkpool, with both Flow and Snapshot modes, the Lexicon, the price-bucketed aggregation, and the Cortex tools that read it.
$199 / month · cancel anytime. Darkpool surfaces off-exchange prints from U.S. ATS venues via the SIP tape with sub-minute latency, refreshed every 45 seconds during market hours. FINRA ATS aggregate data is delayed 1-2 weeks and is surfaced separately.