CROSS-INSTRUMENT MAPPING
Mapping NQ master context to QQQ.
Mapping NQ context to QQQ transfers a documented market-state interpretation, not the NQ price. QQQ retains its own feed, price scale and execution boundaries at the same point in time.
Before you begin
Prerequisites
Learning objectives
- Explain: Context and price are separate
- Explain: Synchronization comes first
- Explain: QQQ keeps its own surface
Context and price are separate
NQ can be the reference while QQQ remains the execution surface. Mapping connects state at a synchronized timestamp; it does not claim a fixed price ratio.
Synchronization comes first
Comparing a completed NQ bar with an incomplete QQQ bar creates timing mismatch. Feed timestamps, sessions and bar confirmation must agree before state transfer.
QQQ keeps its own surface
Any QQQ level must be calculated and rounded on QQQ data.
- Do not reuse NQ tick size
- Do not infer QQQ fills from futures prints
- Log delayed feeds
- Block output when prerequisites fail
Common mistakes
- Reading the result without the stated scope and assumptions.
- Changing the rule after seeing an outcome while still calling the data unseen evidence.
Trader Checklist
- Do not reuse NQ tick size
- Do not infer QQQ fills from futures prints
- Log delayed feeds
- Block output when prerequisites fail
Practice exercise
Choose one of your own trading examples and write one page of rules, evidence and stopping conditions using the principles in "Mapping NQ master context to QQQ.".
What evidence would overturn the conclusion
The conclusion should be overturned or narrowed if a key assumption cannot be reproduced inside the supported scope, the control cannot be executed, or new out-of-sample evidence repeatedly contradicts it.