01 /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.

Start tracking the dark See the full platform

Every U.S. ATS venue45-second refresh · Flow + SnapshotHero · Magnet · Support · Resistance

tradeecho.com/darkpool

FlowSnapshot

Live · 45s

Top ticker$NVDA

Total notional$847M

Largest print$111.7M

Rows visible218

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

02 /Snapshot mode

The 2×2 dashboard most 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 notional

15m1hToday

Focus mode

Pane · 01

Leaderboard

PremiumPrintsCluster

01$NVDA 125 prints$847M

02$SPY 96 prints$612M

03$QQQ 88 prints$498M

04$AAPL 72 prints$384M

05$MSFT 58 prints$321M

06$META 44 prints$268M

Pane · 02

Premium Distribution

$NVDA · Today

$894 · Hero46%

$89026%

$88616%

Other12%

Pane · 03

Chart · level overlays

$NVDA · 5m

HeroMagnetSupportResistance

Pane · 04

Key Levels

violet glow = top-premium row

Level	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

03 /The Darkpool Lexicon

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.

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%

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.

04 /Price bucketing

Raw prints become tradeable 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.

$SPY · $QQQ

$0.50

bucket

Tightest grid on the highest-volume tickers. $580.00, $580.50, $581.00 …

Price ≥ $100

$1.00

bucket

Standard institutional grid. $894, $895, $896 …

Price < $100

$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.

05 /Cross-window switching

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 instantlywhen you switch the window. The Hero on the day isn't always the Hero in the last fifteen minutes — that's the point.

06 /Live + delayed

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 feed

Sub-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 volume

Delayed · 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.

07 /Five surfaces

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.

1Darkpool

The print itself

$NVDA · 125,000 sh · $894.12 · $111.7M · ATS · D · C.

Level · Hero

2OptionFlow

The flow score

Same ticker's options Flow Score, tier, and 30-day baseline ratio.

Lens · Conviction

3DealerEdge

The dealer map

Anchor, Flip, and Cortex Wall on $NVDA around the same level.

Lens · Positioning

4AlgoEdge

The algo footprint

Coincident hits in Large Trades and Momentum channels.

Lens · Confirmation

5Cortex

Ask, or automate

Tool get_dark_pool_data, or chain it via multi_signal_scan.

Tool · multi_signal_scan

Detection · Aggregation · Positioning · Confirmation · AI — one subscription

08 /Who it's for

Built for every seat at the desk.

Position traders

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

Swing traders

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

Accumulation hunters

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

Quant-curious

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

09 /The moat, plainly

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

10 /Questions

Quick answers.

01What 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.

02What'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.

03What 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.

The same vocabulary flows through Cortex when it narrates dark prints.

04What'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 < $100uses $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.

05What'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.

06Is Darkpool on mobile?

Yes. Same feed, card-stream layoutinstead 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.

—The rest of the platform

—Compare

11 /Get started

Start tracking the dark.

Every Trade Echo Pro subscription includes Darkpool — both Flow and Snapshot modes, the Lexicon, the price-bucketed aggregation, and the Cortex tools that read it.

Start tracking the dark

OptionFlow·DealerEdge·Darkpool·AlgoEdge·Copy Trading·Cortex Chat·Cortex Agents·Cortex Marketplace

$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.