OPEN-SOURCE SCRIPT
First Presented FVG

Summary: First Presented FVG Indicator
This is aPine Script® TradingView indicator that identifies and visualizes the first Fair Value Gap (FVG) that forms within configurable time windows during a trading session.
What it Does
1. Detects FVGs: Uses the classic 3-candle FVG definition:
- Bullish FVG: When low[0] > high[2] (gap up)
- Bearish FVG: When high[0] < low[2] (gap down)
2. "First Presented" Logic: For each configured time slot, it captures only the first qualifying FVG that forms—subsequent FVGs in that window are ignored.
3. Visual Display:
- Draws a colored box spanning from detection time to session end
- Optional text label showing detection time (e.g., "9:38 Tue FP FVG")
- Optional grade lines at 25%, 50%, and 75% levels within the FVG
Key Configuration
Setting Description
Timeframe Only works on 5-minute charts or lower
Timezone IANA timezone for session times (default: America/New_York)
Session Futures trading hours (default: 1800-1715)
Min FVG Size Minimum gap size in ticks to qualify
4 Time Slots Each with enable toggle, time window, and color
Default Time Slots
Technical Features
This is a
Pine Script v6
What it Does
1. Detects FVGs: Uses the classic 3-candle FVG definition:
- Bullish FVG: When low[0] > high[2] (gap up)
- Bearish FVG: When high[0] < low[2] (gap down)
2. "First Presented" Logic: For each configured time slot, it captures only the first qualifying FVG that forms—subsequent FVGs in that window are ignored.
3. Visual Display:
- Draws a colored box spanning from detection time to session end
- Optional text label showing detection time (e.g., "9:38 Tue FP FVG")
- Optional grade lines at 25%, 50%, and 75% levels within the FVG
Key Configuration
Setting Description
Timeframe Only works on 5-minute charts or lower
Timezone IANA timezone for session times (default: America/New_York)
Session Futures trading hours (default: 1800-1715)
Min FVG Size Minimum gap size in ticks to qualify
4 Time Slots Each with enable toggle, time window, and color
Default Time Slots
- Slot 1 (enabled): 09:30-10:30 — lime green
- Slot 2 (enabled): 13:30-14:30 — blue
- Slot 3 (disabled): 13:00-13:30 — teal
- Slot 4 (disabled): 14:15-14:45 — fuchsia
Technical Features
- Handles cross-midnight sessions correctly
- Resets all drawings at each new session
- Skips the first bar of each window to ensure valid 3-candle lookback
- Clamps slot windows to session boundaries
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
Open-source script
In true TradingView spirit, the creator of this script has made it open-source, so that traders can review and verify its functionality. Kudos to the author! While you can use it for free, remember that republishing the code is subject to our House Rules.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.