Live tape narration
Crux speaks observed market conditions as they unfold — profile rotations, flow shifts, level tests. In trader language, while the event still matters. Voice and text simultaneously.
The tape, spoken.
Ask. Watch. Trade your way. Crux sits next to your charts and reads the tape with you — live context in plain trader language as it happens. It never predicts. It never places orders. You keep the chart. You make the call.
Fifteen capabilities — live narration, custom strategies, backtesting, multi-source synthesis, and the depth that makes serious tape-reading possible.
Crux speaks observed market conditions as they unfold — profile rotations, flow shifts, level tests. In trader language, while the event still matters. Voice and text simultaneously.
One query, composed answer pulling from price, profile, flow, internals, and history simultaneously. The thing no chart can do in one read.
Opening-drive commentary, overnight inventory context, IB prep before the bell rings. Ready before the open.
When conditions fire, push hits your phone. Configured from the same chat. Desktop continues narrating.
ES, NQ, RTY, CL, GC, SI, HG. Live market context during the Regular Trading Hours session.
Describe a setup in English: "Watch for ES testing PDH from below with negative delta divergence." Crux translates it into a multi-condition watcher, monitors live, alerts when conditions align.
Test any strategy you've defined against historical sessions. Structured table results — match count, hit rate, average move, time-to-resolution.
Pick a voice you'll want to hear all session. Multiple registers, accents, and cadences. Custom tone presets on Elite.
Pro vocabulary for veterans, plain language with concepts explained for traders climbing the curve. Same AI, different sophistication.
Iceberg detection, order-size attribution, institutional vs. retail flow breakdown. Things no chart can show in one read.
"In matching past sessions, X happened in Y of Z cases." Statistical context grounded in observed history. Frequency, never forecast.
Today's volume 1.4× the 20-day baseline. Today's shape matches April 7 at 92%. The unusual, surfaced before you look for it.
Find historical sessions that match today's shape signature; see how they resolved.
RTY mirroring ES, GC vs. CL correlation, internals across instruments — all in one read.
Crux remembers what you asked earlier in the session; follow-up queries reference prior context.
TopStep, Apex, Elite Trader Funding, Bulenox. Performance accounts where situational awareness wins.
ES, NQ, RTY accounts running the open through the close. Traders who already speak the language.
CL, GC, SI, HG. Day-session traders who care about absorption and inventory shifts on the tape.
Tape readers and footprint analysts running flow-driven setups. Absorption, delta, and imbalance — Crux speaks the language.
Crux is a small desktop tool you talk to — by voice or keyboard. It returns structured trader-language responses. From the same conversation, you set alerts that push to your phone. Your charts and broker never move.
Text or voice. No query language, no dropdowns.
Correlation-ready facts, not opinions.
Plain language. No rule builder, no scripting.
Mobile alert arrives. Crux narrates live on desktop. You decide.
Crux speaks to you whether you're new to reading the tape or running a funded account. It matches the sophistication of the question — clean, brief answers for quick checks; full pro vocabulary and depth when you go deep. As you ask, it explains the concepts behind the numbers in the language you're already using. You learn the market while you query it.
ES is range-bound — trading between 6042 and 6048 for the last 25 minutes. Most activity centered at 6045. Slightly more buying than selling, but trading is about 38% quieter than the morning open. No clear direction yet.
A 1,400-contract market buy at 21810 cleared the resting offers up through 21818 in about 90 seconds. Trailing momentum carried it 6 more ticks. No news catalyst. The move was NQ-specific — RTY didn't follow. The most-traded price has shifted up with the move.
First 30 minutes ran 1.4× the 20-day average — heavier open than usual. Since 10:30, per-minute trading has dropped to 78% of typical mid-session pace. Order sizes skew larger — top-decile orders are 32% bigger than the 20-day average, suggesting institutional flow. In the past 60 sessions with similar opening volume and size mix, daily range expansion exceeded the typical norm in 41 of 60 cases.
Statistical breakdowns describe what happened in matching past sessions, not what will happen next.
During the session, Crux speaks observed conditions as they unfold — market profile rotations, order flow shifts, internals changes. The narration comes from the market itself: price, volume, structure, flow, internals. No sentiment. No news interpretation. No pundit opinion. Just what the tape is doing, in plain trader language — while the event still matters. You can mute, ask for summaries, or switch registers — scalp, swing, or passive.
"ES just rejected the morning high. Two-sided auction forming. TICK dropped to minus 640."
"NQ value area migrated above the overnight inventory. Upper VA acceptance possible."
"Absorption at 6045 on ES. 18k buy delta into resting offers. Internals remain positive."
[passive mode — logging only, speaking suppressed]
200+ studio-quality voices. Measured for swing sessions, clipped for the scalp. Previews before you commit.
200+ voices in the library · custom tone presets on Elite
Live market context for US index, energy, and metals futures. Tick-level granularity for order flow during the regular session. No simulated data for live decisions.
Crux calls typed market-data tools to retrieve facts. Natural-language in, structured trader-language out.
Streaming speech model. Narration lands while the event still matters — session-pace, not tick-pace. Mute, summary, and register controls built in.
Lightweight desktop chat on macOS and Windows. Mobile companion for alerts and narration clips.
Crux runs live market context and dedicated inference infrastructure per seat for US futures during the regular session (RTH). Voices, narration, and context are personalized. Pricing reflects what it takes to run. Annual saves 17%.
One instrument. Full depth.
Three markets. Full session.
Every supported market. Every voice.
| Feature | Focus | Pro | Elite |
|---|---|---|---|
| Markets · US session (RTH) | |||
| Instruments included | 1 | 3 | All supported |
| ES, NQ, RTY (index futures) | ● | ● | ● |
| CL (crude oil) | ● | ● | ● |
| GC (gold) | ● | ● | ● |
| SI, HG (silver, copper) | — | ● | ● |
| Regular session (RTH) coverage | ● | ● | ● |
| Pre-market analysis + opening drive | — | ● | ● |
| Post-RTH + overnight inventory summaries | — | — | ● |
| Voice | |||
| Voices available | 10 | 200+ | 200+ & early access |
| Scalp / swing / passive modes | — | ● | ● |
| Custom voice tone presets | — | — | ● |
| Low-latency session narration | ● | ● | ● |
| Analysis | |||
| Market profile core (POC, VAH, VAL) | ● | ● | ● |
| TPO, absorption, imbalance, footprint | — | ● | ● |
| Order flow — delta & CVD | ● | ● | ● |
| Market internals (where available) | — | ● | ● |
| Custom narrative prompt tuning | — | — | ● |
| Alerts, strategies & sessions | |||
| Simple alerts (single-condition triggers) | 2 | 10 | 30 |
| Custom strategies (plain-language multi-condition watchers) | 1 | 5 | 15 |
| Strategy backtesting in chat (structured table results) | ● | ● | ● |
| Mobile push | ● | ● | ● |
| Session replay with narration | — | ● | ● |
| Priority inference latency | — | ● | ● |
| Support | |||
| Email support | ● | ● | ● |
US futures — index, energy, and metals — covered during the regular session (RTH). Annual saves 17%.
Crux does one thing and stays out of everything else. That focus is what makes the rest sharp.
Early access is limited. Join the waitlist to get a seat when Crux opens to its first trading cohort.
No spam. No newsletter. One email when it's live.