Nocturne Auction Atlas [JOAT]

Nocturne Auction Atlas [JOAT]

Introduction

Nocturne Auction Atlas is an open-source auction-mapping indicator that studies session VWAP, developing volume distribution, value areas, imbalance shelves, estimated CVD, divergence, and auction quality. It is designed to show where price is accepting value, rejecting value, or interacting with unfinished auction references.



Core Concepts

1. Session Auction Framework

The script resets during a new session and tracks session high, low, VWAP, and developing volume distribution.

2. Developing Volume Profile

Price is divided into rows. Each row accumulates estimated volume to identify the point of control, value area high, and value area low.

3. Estimated CVD

CVD is estimated from candle body position, close location, and volume. This is not exchange-level bid/ask data, but it provides a consistent pressure proxy.

4. Divergence Detection

Pivot-confirmed price swings are compared against estimated CVD swings to identify bullish or bearish divergence.

5. Imbalance Shelves

Rows with strong buy or sell imbalance are marked as auction shelves. These shelves can help identify areas where pressure was concentrated.

Features

• Session VWAP and bands: Tracks intraday auction center and deviations
• Developing profile: Builds POC and value area from recent session data
• Imbalance shelves: Highlights rows with strong bid or ask imbalance
• Estimated CVD: Uses candle-derived volume pressure
• Divergence logic: Pivot-confirmed CVD divergence events
• Naked POC memory: Tracks unfinished prior auction references
• Dashboard: Shows auction state, quality, delta, POC, value area, and shelf state

Input Parameters

• Session Bars Used controls how many bars feed the profile
• Profile Rows controls profile granularity
• Value Area controls the percentage of volume included in value
• Quality Gate controls signal sensitivity
• Shelf Gate controls imbalance shelf detection

How to Use This Indicator

Step 1: Read auction location

Use VWAP, POC, VAH, and VAL to understand whether price is trading near value or outside value.

Step 2: Watch shelves

Imbalance shelves identify price rows where estimated pressure was concentrated.

Step 3: Interpret divergences carefully

Divergence requires confirmed pivots and is naturally delayed. It is context, not a prediction.

Indicator Limitations

• Profile calculations are approximations based on chart bars
• CVD is estimated from candles and volume, not true bid/ask transactions
• Pivot divergence confirms after pivot bars have passed
• High row counts and long sessions can increase script workload

Originality Statement

Nocturne Auction Atlas combines session VWAP, developing profile rows, imbalance shelves, estimated CVD, divergence, and unfinished auction references into one chart framework. The components are designed to explain auction state rather than simply plot volume levels.

Disclaimer

This indicator is provided for educational and informational purposes only. It is not financial advice. Auction references can fail, and volume approximations can differ from real order-flow data.

-Made with passion by jackofalltrades