> A fair value gap indicator on one frozen definition: exact three-candle boundaries, the state machine from untouched to inverted, every threshold stated. - Canonical: https://hadalinstruments.com/ict/fair-value-gap-indicator/ --- [← All ICT instruments](https://hadalinstruments.com/ict/) I1 W1.5 · W2.8 · W2.9 in build # Fair Value Gap Indicator Every gap the definition admits from the size floor up, with states — nothing it refuses. Most gap indicators draw whatever their author’s eye would have drawn. This one draws whatever the definition admits at or above the minimum-size floor — and its entire value is that the definition is frozen, stated, and the same for every user on every chart. ## What it draws Every three-candle imbalance passing the exact test — third candle’s low above first candle’s high for bullish, the mirror for bearish — with the band’s true boundaries, its midpoint line, and its live state: untouched, touched, midpoint reached, filled, or inverted under the stated invalidation rule. Inverted gaps re-render in their flipped role, per the taxonomy’s own grammar, and remain distinguishable from fresh ones. Gaps below the minimum-size floor are not drawn at all, with the floor printed in the settings rather than buried in the code. Because the object is timeframe-relative — the same tape aggregated differently prints different gaps — the active timeframe travels with every label, and a gap’s whole history stays readable on the chart instead of living in the user’s memory. Nothing repaints: a state, once entered, is a fact about the past, and the display treats it as one. ## Why frozen definitions matter more than features Two people running the same fair-value-gap tool on the same chart routinely see different gaps, because most tools embed unstated thresholds. Here every threshold is a named parameter with its shipped default visible, and the defaults come from one place: the detector campaign’s frozen definition set, the same geometry the measurement estate runs. Change a parameter and the indicator says so on the chart — a modified configuration is a different instrument, and pretending otherwise is how folklore gets laundered into findings. The same discipline governs the claims the tool declines to make: that price returns to gaps, that the midpoint is special, that fills arrive on schedule. The instrument draws a defined object and tracks its states; whether the object predicts anything is a measured question the line’s measurement layer reports on separately, whatever it finds. A drawing tool that implies its drawings are forecasts has sold something it does not have, and this one is built so it cannot. ## The object it looks for The frozen definition, drawn. This is the geometry the detector is built to find — not a capture of the instrument running, and not a result. A drawing that implied otherwise would be the one thing this line exists to refuse. FIG. 01 ILLUSTRATIVE The three-candle arrangement the definition admits: the middle candle delivers far enough that the first candle’s high and the third candle’s low cannot overlap, and the span left between them is the gap. A drawn gap establishes that the arrangement occurred. It does not establish that price returns to the span, or what follows if it does. Source [Frozen definition set — detector W1.5](https://hadalinstruments.com/ict/#ledger) SHA-256 NOT APPLICABLE — ILLUSTRATIVE, NOT A MEASUREMENT Fair Value Gap Indicator: what the frozen definition states, in full. Element | What the definition states | Test | Third candle’s low is above the first candle’s high (bullish). Mirrored for bearish. | Candles The same tape aggregated differently prints different gaps. | Exactly three, consecutive, on one stated timeframe. | The gap | The span between those two prices. | Fill | Later price trading back through the span. | Minimum size A floor below which a gap is not drawn is a parameter, not a fact about the market. | election pending | Not established | Whether price returns, how often, or what a return is worth. | The definition in full, with the terms it uses, is at [the glossary entry](https://hadalinstruments.com/glossary/fair-value-gap/). ## The parameters, in the open Every threshold is a named parameter with its shipped state visible. Where a default reads *election pending*, the calibration run has not yet frozen it, and this page says so instead of inventing a number. Presets populate editable fields; they never lock them. Fair Value Gap Indicator: every threshold it exposes, and the state each one is in. Parameter | Shipped state | What it decides | Gap test | C3.low > C1.high (bullish); mirror bearish | The three-candle comparison itself — fixed, because it is the definition rather than a preference. | Minimum size | election pending | ATR-scaled floor below which a gap is not drawn; the calibration run freezes the shipped default. | Invalidation rule | election pending | Wick-through versus close-through for the transition into the inverted state. | Midpoint line | on | The gap's 50% line — consequent encroachment — rendered as its own reference. | State display | untouched · touched · midpoint · filled · inverted | The full state machine, labelled on the chart, so a gap's history is visible rather than remembered. | ## The calibration certificate Every instrument in this line ships with its report: the reaction and state statistics for its objects, computed on this estate's own recorded data under the campaign's measurement design, with the vintage's hash and date printed — and a refusal state when the vintage ages past its declared cadence. The report ships whatever it says. This instrument's certificate NOT YET COMPUTED The campaign's entry bar is the reason: no driver takes a live reading before it recovers a planted effect through the measurement harness, and the harness comes before every certificate. The drafting instrument is in build for the platforms above. Nothing is purchasable yet, here or anywhere. ## What this instrument does not do It makes no claim that its objects predict anything, and it ships no signals. It draws defined geometry under stated parameters; whether that geometry carries information is the measurement layer's question, answered against stated nulls and published either way. No performance figures appear on this page because none have been computed — and when they are, they arrive as the certificate above, not as marketing. ## The research on the claim it draws The objects drawn by the Fair Value Gap Indicator are taught with a claim, and no research note on this site examines that claim. ## Questions and answers ### How does the Fair Value Gap Indicator identify a fair value gap? With one fixed three-candle test. A bullish gap exists when the third candle's low sits above the first candle's high, and a bearish gap is the mirror; the band between those two prices is drawn at its true boundaries with its midpoint line. The test is not a setting, because it is the definition. What can be set is the minimum size, an ATR-scaled floor whose shipped default the calibration run freezes, and gaps below it are not drawn. ### Which timeframe does it find fair value gaps on? The one the chart is on, named on every label. A fair value gap is timeframe-relative: the same tape aggregated into different candles prints different gaps, so a gap on the hourly chart and a gap on the five-minute chart are different objects, and the label keeps them from being confused. ### What do the states on each gap mean? A gap moves through five labelled states: untouched, touched, midpoint reached, filled and inverted. The midpoint is the gap's 50% line, consequent encroachment. Inversion follows the invalidation rule in force, wick-through or close-through, and an inverted gap re-renders in its flipped role while staying distinguishable from a fresh one. Nothing repaints: a state, once entered, is a fact about the past. ### Does this fair value gap indicator run on TradingView? No. It is in build for MetaTrader 4, MetaTrader 5 and cTrader. What carries to any platform is the definition: the three-candle test, the state machine and every threshold's shipped state are set out on this page, so a gap drawn by another tool can be checked against the same test. ### Does the indicator predict that price will return to a gap? No. It declines the three claims gaps usually arrive with: that price returns to them, that the midpoint is special, and that fills arrive on schedule. It draws a defined object and tracks its states, and whether that object predicts anything is a measured question the line's measurement layer reports on separately, whatever it finds. ## Where this sits This instrument's concepts are defined in the glossary: [fair value gap](https://hadalinstruments.com/glossary/fair-value-gap/) · [consequent encroachment](https://hadalinstruments.com/glossary/consequent-encroachment/) · [inverse fair value gap](https://hadalinstruments.com/glossary/inverse-fair-value-gap/) · [balanced price range](https://hadalinstruments.com/glossary/balanced-price-range/) · [displacement](https://hadalinstruments.com/glossary/displacement/) · [liquidity void](https://hadalinstruments.com/glossary/liquidity-void/). Its drivers sit in the [claims ledger](https://hadalinstruments.com/ict/#ledger) (W1.5, W2.8, W2.9) with their verdicts rendered honestly until computed. Also in this line: [Order Block Indicator](https://hadalinstruments.com/ict/order-block-indicator/) · [Liquidity Sweep Indicator](https://hadalinstruments.com/ict/liquidity-sweep-indicator/) · [Market Structure Indicator](https://hadalinstruments.com/ict/market-structure-indicator/) · [Displacement Indicator](https://hadalinstruments.com/ict/displacement-indicator/) · [Session & Killzone Clock](https://hadalinstruments.com/ict/session-killzone-clock/) · [Liquidity Pools Indicator](https://hadalinstruments.com/ict/liquidity-pools-indicator/) · [Premium-Discount & OTE Indicator](https://hadalinstruments.com/ict/premium-discount-ote-indicator/) · [Opening Gap Indicator](https://hadalinstruments.com/ict/opening-gap-indicator/) · [Judas & Silver Bullet Models](https://hadalinstruments.com/ict/judas-silver-bullet-models/) · [SMT Divergence Indicator](https://hadalinstruments.com/ict/smt-divergence-indicator/) · [Candle Range Theory Indicator](https://hadalinstruments.com/ict/candle-range-theory-indicator/). here would have added one landmark per placement, which on the homepage means a landmark list that is mostly disclaimer. --> Standing policy - **No promise of profit, ever.** Hadal makes no performance claims and carries no implied edge. Past measurements describe instrument behaviour — never future returns. - **You own risk management.** Hadal cannot control it and does not insure it. Good tools do not fix bad discipline — and this site says so. - **Analytical tools, for discretionary use.** Nothing here is investment advice or a recommendation to trade. Every decision, and every outcome, is yours. The same statement stands in the footer of every page.[Terms](https://hadalinstruments.com/terms/) [Privacy](https://hadalinstruments.com/privacy/)