Read the data before the level
Check the source, session and separate input clocks.
In this article 6 sections
1. Identify the data mode
Read the source beside the symbol and the Demo or Archived price label. Check the status below the chart.
Historical week identifies the selected session and after-session EOD reconstruction. Those levels were not necessarily available during that session.
A gamma flip under review
Compare QQQ’s completed closes with its short-horizon flip.
Choose a checkpoint for 1-minute detail. Later prices stay hidden.
A flip crossing alone is not an entry.
Historical review. Plans are hypothetical; fills, delivered signals and a trading edge are not proved.
- Context
- Preopen walls: call $720.00, put $705.00. Flips: ≤1 DTE $717.91; ≤7 DTE $717.98. ≤1 DTE is not 0DTE-only. The 15-minute-delayed model was stale; alerts were suppressed. Pause until model timing and a fresh broker quote are verified. No order was authorized.
- Wait for
- The 09:55–09:59 block closed $718.88 above the short-horizon flip, known at 10:00 ET. This is an observation, not an automatic entry.
- Execution
- No order is specified or executed. Define entry, invalidation and risk separately using fresh quotes and acceptable spreads. Shorts require borrow; size must fit buying power. No option or futures trade is inferred.
- Invalidation
- A completed close back below the same flip challenges the hold-above idea. Keep the horizon fixed.
- Management
- Follow completed closes. Wait for any separately required wall touch. If no condition qualifies, staying out is valid.
Above at 09:56 ET; back below at 10:17. The session had 12 strict adjacent-close crossings; neither primary wall was touched. No entry, alert, fill, edge or P&L is established.
Source, timestamps & selection
- Candles
- Databento XNAS.ITCH · venue OHLCV, not consolidated SIP volume. These are venue bars, not a consolidated market tape.
- Model source
- Tradier sandbox · original archived native model. Source delay: 900 seconds.
- Model built
2026-09-09T06:40:02.007023+00:00- First recorded
2026-09-09T06:44:08.998656+00:00- Open interest timestamp
- Unknown. No point-in-time open-interest clock was supplied.
- Evidence limit
- A local producer cycle recorded this model before the cash open. The producer log is mutable and has no independently sealed receipt. The first and selected records report stale=true and alerts_suppressed=true; no enabled alert, trader broadcast or execution is proved. Exact OI availability is unknown. The chart uses a different price provider. Bar-end times are the earliest theoretical observation times after a minute closes, not proven client delivery times.
- Why this day
- Four editorial examples selected after reviewing all 12 SPY/QQQ/IWM sessions from September 8–11, 2026. Hindsight selection is explicit. Untouched levels, recrossings and the invalidation-first case remain visible; no hit rate or predictive performance is claimed.
The producer record is mutable. “First recorded” describes the recorded archive; it is not proof that a trader received the same levels at that instant.
Archive fingerprints
- resource-case-study-census.json
af9379d9eb6802044356957fd6cf9a96b203eb57bddafd844c2d56ebf679de85 - cycles.parquet
774e0b67dd965b652f12ef1f7a5e90a49a81ba14871c05f2851144a24731b7a2 - contracts-QQQ.parquet
0ad36606577cb7693b97c4538fcfd12b70c99d7e1e2831c7a10d427fc86822db - QQQ-preview.json
61590fe909b65c86fcac3ef1642b45a9032f2cc6558cff5d812cd4d44520faa7
Explore the concept with a simplified model
2. Open source details
Open [symbol] source and session details beside the chart, or below it on mobile.
Read Source, Session, OI as of, Price as of and Coverage. A candle date cannot establish a missing open-interest timestamp.
Sources: Options Industry Council (OCC): Market Data; Cboe DataShop: Frequently Asked Questions.
3. Find the model clock
Choose Pro → Expiry table and model context → Behind the numbers. Read Profile built at, Open interest, Units, Dealer sign and Coverage.
A recent build can process old inputs. Illustrative profile identifies a demo calculation.
4. Match data to purpose
Use demos to learn controls and dated archives to inspect past sessions. Current decisions require current inputs, access and sufficient coverage.
A connection or page refresh does not update every source. Limit conclusions when a needed clock or coverage field is missing.
Quick check
Find these fields; write unknown where the chart does not establish them.
- Instrument, source and session.
- Price and open-interest times.
- Model build time and data mode.
- Expiry coverage and missing inputs.
Sources and editorial notes
Read the primary references and editorial policy
Published by GEXfreak. Prism by GEXfreak is the product described in these guides. Definitions reference the primary sources below; examples and tool-selection checklists are GEXfreak’s own illustrations. This is product education, not independent investment research.
These sources explain options mechanics and data. They do not endorse Prism or validate the predictive value of its levels. Undated pages are marked below; the checked date is when the source was reviewed.
- Market Data — Options Industry Council (OCC). Publication date not stated. Checked .
- Frequently Asked Questions — Cboe DataShop. Publication date not stated. Checked .
For the product’s calculation and data boundaries, read Prism’s methodology.
Check the source details.
Compare the price, open-interest and model clocks.
Demo values are fictional. Create an account to save your layout; review current access conditions on the pricing page.