# Gap Rules Interaction Gap Rules Interaction is an indicator on [Vela](https://vela.luxalgo.com/chart), our next-generation charting platform, written in Pine Script®. Reads each session's opening gap against the prior day's map and the opening range on intraday charts: gaps are sized against a 10-day average daily range, classed as inside or beyond the prior range, and the 30-minute opening range is graded as accepting or rejecting the gap. A dashboard layers gap fill, the gapped-over level and a live day read, with eleven alerts from classification through negation. - Indicator in the LuxAlgo Library, by LuxAlgo, published Jun 17, 2026. - Access: free. - Concepts: [Gap Rules Interaction](https://www.luxalgo.com/library/concept/gap-rules-interaction/) (primary) - Open on Vela: https://vela.luxalgo.com/chart?pineScriptCodeId=cogmswyimached5n2f21j8io - Page: https://www.luxalgo.com/library/indicator/gap-rules-interaction/ **Gap Rules Interaction** reads the opening gap the way session traders actually use it, in the first faithful chart build of [gap rules interaction](https://www.luxalgo.com/library/concept/gap-rules-interaction/). Each session's gap is sized against the recent average daily range and classed as negligible, inside the prior day's range or beyond it; the prior high, low and close stay drawn as reference, the gap zone is boxed, and the opening range forms, locks, and declares itself for or against the gap. A dashboard rolls the layers into a single day read. ## How to Trade the Gap Rules Interaction? - **Opening range read**: a range built entirely beyond the gapped-over level is acceptance; forming back through it into prior territory is rejection. Both are alerted at lock-in. - **Continuation alignment**: gap beyond the prior range, price holding the opening range's gap-side half, no re-entry through the gapped-over level. These are gap-and-go conditions, alerted once per session. - **Fade alignment**: price back inside accepted territory rotating toward the prior close, risk framed at the opening-range extreme. - **Fill and negation**: touching the prior close is a full fill; closing through it negates the gap's structure, imbalance back to balance. ## Gap Rules Interaction Settings - **Custom Session** (default off) with its window (default 0930-1600): measure everything inside a session, recommended on futures and extended-hours charts. - **Sessions Shown** (default 5): sessions keeping their drawings. - **Average Daily Range Length** (default 10): the gap-sizing baseline. - **Negligible Gap Threshold** (default 0.1): gaps under this fraction of the ADR get no playbook. - **Opening Range Duration (Minutes)** (default 30): use a timeframe at or below it. - Display: **Prior High / Low**, **Prior Close (Gap Fill Level)**, **Gap Zone**, **Opening Range**, **Gap Classification Label** and **Dashboard** (all on); **Event Markers** (off). ## Frequently Asked Questions ### How does this differ from a Gap-and-Go tool? [Gap-and-Go](https://www.luxalgo.com/library/indicator/gap-and-go/) isolates one play: the strong gap that never looks back. This build classifies every gap first and lets the layers decide. The day read tracks whether continuation, fade or negation is unfolding. ### Why does the dashboard say "no gap playbook"? The open landed under the negligible threshold of the average daily range. The same point gap can be out of balance on a quiet symbol and meaningless on a volatile one, so classification is relative by design. ### What is the gapped-over level? The nearest prior-day level behind price at the open: the prior high or low beyond the entire range, the prior close inside it. A test that holds is the continuation cue; a close back through it points the day toward the gap fill. ## Related indicators - [8AM 1H Range & Breaks](https://www.luxalgo.com/library/indicator/8am-1h-range-breaks/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/8am-1h-range-breaks.md - [8am Road Map Zone](https://www.luxalgo.com/library/indicator/8am-road-map-zone/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/8am-road-map-zone.md - [Ultimate Opening Range Breakout](https://www.luxalgo.com/library/indicator/ultimate-opening-range-breakout/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/ultimate-opening-range-breakout.md - [9:30 AM 15m Fib Breakout](https://www.luxalgo.com/library/indicator/9-30-am-15m-fib-breakout/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/9-30-am-15m-fib-breakout.md - [Opening Range with Breakouts & Targets](https://www.luxalgo.com/library/indicator/opening-range-with-breakouts-targets/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/opening-range-with-breakouts-targets.md - [DR/IDR Candles](https://www.luxalgo.com/library/indicator/dr-idr-candles/) (Opening Range & ORB): markdown at https://www.luxalgo.com/library/indicator/dr-idr-candles.md - [Asia Sweep Reversals](https://www.luxalgo.com/library/indicator/asia-sweep-reversals/) (Time, Sessions & Seasonality): markdown at https://www.luxalgo.com/library/indicator/asia-sweep-reversals.md - [Sessions](https://www.luxalgo.com/library/indicator/sessions/) (Time, Sessions & Seasonality): markdown at https://www.luxalgo.com/library/indicator/sessions.md --- Source: https://www.luxalgo.com/library/indicator/gap-rules-interaction/ (LuxAlgo Library). Free to use with attribution: https://www.luxalgo.com/library/license/