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Technical Analysis & Price Action Mastery

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Lesson 4/12/Technical Analysis/Price Action & Candlesticks/Trend & Structure14 min

Supply & Demand Zones, 3-Bar Fair Value Gaps (FVG) & Mitigation

Technical Analysis

Grading institutional Order Blocks using 3-candle Fair Value Gaps, structural breaks, and first-touch mitigation.

Key Topics & Tags
supply and demandorder blockfair value gapfvgmitigationimbalance

Core Architecture & Intuition

Grading institutional Order Blocks using 3-candle Fair Value Gaps, structural breaks, and first-touch mitigation. Within the Technical Analysis curriculum (Price Action & Candlesticks → Trend & Structure), this topic establishes the concrete quantitative rules and execution mechanics required for live market deployment.

Professional desks never rely on ambiguous visual guesses for supply and demand. Instead, every entry, invalidation level, and risk parameter is defined mathematically before a single order reaches the exchange gateway.

Hover over key terms below for instant definitions: Supply And Demand, Order Block, and Fair Value Gap. For the complete mathematical derivation and edge-case analysis, open .

INSTITUTIONAL DEMAND / ORDER BLOCKBUY-SIDE LIQUIDITY SWEEP / SUPPLY ZONEBOS (Break of Structure)CHoCH (Change of Character)HH1HL1HH2HL2 (Key Low)Sweep HighLL1LH1 (Mitigation)
Visual architecture for Supply & Demand Zones, 3-Bar Fair Value Gaps (FVG) & Mitigation (Technical Analysis / Price Action & Candlesticks / Trend & Structure).
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Pro tip:Always validate supply and demand on closed bars and include realistic round-trip slippage + statutory taxes before deploying live capital.

Interactive Concept Breakdown

  • Supply And Demand — Core structural driver governing supply & demand zones, 3-bar fair value gaps (fvg) & mitigation.
  • Order Block — Prevents premature entries and enforces mechanical discipline across Trend & Structure.
  • Fair Value Gap — Ensures worst-case scenario losses stay strictly within predetermined R-multiple budgets.

Step-by-Step Execution Protocol: Trend & Structure

  1. 1
    1. Pre-Session Calibration & Regime Check
    Measure baseline volatility and liquidity parameters for supply and demand prior to market open.
  2. 2
    2. Mechanical Signal Confirmation
    Wait for a completed bar close confirming the order block threshold—never pre-empt mid-candle.
  3. 3
    3. Risk-Normalized Sizing & Order Placement
    Compute exact lot quantity from the invalidation distance and dispatch via a Marketable Limit order.
  4. 4
    4. Post-Trade Telemetry & Audit
    Log arrival price, fill slippage, and MAE/MFE metrics against the Trend & Structure benchmark.

Parameters, Rules & Reference Matrix

Parameter / RuleTypeDefaultDescription
primaryThreshold*floatCalibrated per ATRCore quantitative trigger governing Supply & Demand Zones, 3-Bar Fair Value Gaps (FVG) & Mitigation.
confirmationWindowbars1 closed barRequires full bar closure to eliminate intrabar repainting.
maxRiskAllocation% equity0.5% - 1.0%Maximum capital at risk if invalidation level is hit.

Implementation & Quantitative Model

fvg-detector.ts
export function findBullishFvg(bar0High: number, bar2Low: number, atr: number) {  const gap = bar2Low - bar0High;  return gap >= atr * 0.3 ? { top: bar2Low, bottom: bar0High, mid: (bar2Low + bar0High) / 2 } : null;}

Desk Verification Checklist

Confirm before deploying live capital

  • Confirm Trend & Structure regime alignment before enabling entries.
  • Verify candle closure beyond the trigger threshold (no intra-bar guessing).
  • Size position strictly from the distance to the structural invalidation point.

Cross-reference standard risk definitions such as drawdown, slippage, and when auditing your logs.

More in Trend & Structure

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