Dark Pool & 13F Flow

Overview

This pillar analyzes off-exchange trading volume and quarterly hedge fund filings. It provides a crucial view into what large institutions, or 'smart money', are buying and selling before it becomes public knowledge.

What It Does

It aggregates two key data streams: real-time dark pool volume, which represents private institutional trades, and quarterly 13F filings from the SEC, which disclose the holdings of major investment funds. The pillar synthesizes this information to identify stocks experiencing significant institutional accumulation or distribution, signaling potential future price movements.

Why It Matters

A significant portion of total stock market volume occurs in dark pools, invisible to the average investor. By monitoring this activity and the declared positions of top hedge funds, you can gain an edge by anticipating market-moving trends driven by the most influential players.

How It Works

First, the system ingests aggregated dark pool data to calculate metrics like the Dark Pool Index (DIX), which gauges net buying pressure. Second, it parses 13F filings as they are released to track changes in ownership by major funds. Finally, it combines these signals to generate a conviction score for individual stocks, highlighting where institutional interest is strongest.

Methodology

The Dark Pool Index (DIX) is calculated as (Dark Pool Short Volume) / (Total Dark Pool Volume), with trends analyzed over a 20-day moving average. 13F analysis focuses on the change in position size and new positions initiated by funds with a strong historical track record. A proprietary weighting model combines the DIX trend with the net institutional ownership change from the most recent filings.

Edge & Advantage

This provides a valuable timing advantage by revealing institutional sentiment before it is fully reflected in the public market price or news cycle.

Key Indicators

• Dark Pool Index (DIX)

  high

  Measures net buying pressure from off-exchange trading venues. A higher value indicates bullish institutional sentiment.

• Hedge Fund Conviction

  high

  A score based on the number of top-tier funds buying a stock versus selling it in the latest 13F filing period.

• Block Trade Frequency

  medium

  The rate of large, privately negotiated trades, which often signals significant institutional activity.

Data Sources

• SEC EDGAR Database

  Provides the raw 13F filings from all institutional investment managers.

• FINRA Trade Reporting Facilities (TRF)

  The source for aggregated, anonymized off-exchange and dark pool trading volume data, typically accessed via third-party providers.

Example Questions This Pillar Answers

• → Will Tesla (TSLA) stock close above $200 by the end of the next quarter?
• → Will Berkshire Hathaway increase its stake in Apple (AAPL) in its next 13F filing?
• → Will institutional net flows for NVIDIA (NVDA) be positive this month?

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