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  • Market Essence: 13F Tracker screenshot 1
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About Market Essence: 13F Tracker

Four times a year, every institution managing over $100M must tell the SEC exactly what it holds. Those 13F filings are public — but they're buried in raw XML tables nobody reads. Market Essence turns them into pictures. BROWSE THE WHOLE UNIVERSE • All 13,000+ 13F-filing institutions, searchable by name • Vanguard, Berkshire Hathaway and Citadel free forever — every other fund unlocks with one Premium subscription PROFILE — WHO IS THIS FUND? • Portfolio value with its full filing history since 2013 • Identity facts straight from EDGAR: focus, headquarters, filing record • Concentration at a glance: how much rides on the top 10 positions HOLDINGS — WHAT DO THEY OWN RIGHT NOW? • Treemap of the entire book — re-tile it by value, by share count, or by what changed this quarter • Sunburst rings: how concentrated is the book, and in what • Bubble chart: are the big bets being fed or faded? • The full position list, filterable and searchable HISTORY — HOW HAS THE BOOK SHIFTED? • Money map: the quarter's selling flows into the quarter's buying, one honest sankey diagram • Bought vs sold, ranked face to face • Composition heatmap with three lenses — weight, quarter-over-quarter change, and action (the fund's behavioural fingerprint) • Auto-detected streaks: "bought 6 quarters straight" • Focus any period: entire history, last 2 quarters, last 4, or a custom range STOCKS — FOLLOW ONE NAME • Tap any stock for its whole journey in the fund's book: shares vs value, every add and trim, peak weight, and how it ranks today • Smart lists mean no typing: top holdings, biggest adds, biggest trims, new & exited Data comes directly from SEC EDGAR and updates as new filings land each quarter. Market Essence is not affiliated with or endorsed by the U.S. Securities and Exchange Commission. Nothing in the app is investment advice. SUBSCRIPTION Market Essence Premium — US$4.99 per month, auto-renewing monthly until cancelled. Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period; manage or cancel in Settings > Apple ID > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://marketessence.tech/privacy-and-terms

What’s new

Version 1.1.0 · Updated October 13, 2026

BUILT FOR IPHONE DUO Market Essence now makes full use of both displays on iPhone Duo. Closed, the tabs sit in the side bar beside the clock and every screen stays clear of it. Open, the app spreads across the whole inner display: browse the registry on one page and read a fund's snapshot — value since 2013, concentration, top holdings — on the other. Institution pages lay out side by side, and the charts use the extra width to show far more history: up to 23 quarters in the composition heatmap, 22 in net flow, and more named positions in the treemap. Fold or unfold at any time and you stay exactly where you were. ALSO IN THIS RELEASE - Scrubbing the portfolio-value chart now picks the exact quarter under your finger. - Built with the latest iOS SDK. Questions or ideas? marketessence.tech/contact-us

App privacy

The developer, Zaichuang Cui, reported these privacy practices to Apple.

Data Linked to You

The following data, which may be collected and linked to your identity, may be used for the following purposes:

  • Contact Info: Email Address, Name
  • Identifiers: User ID
  • Usage Data: Product Interaction

Used for: App Functionality

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