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Portfolio similarity

Investors who trade like Jeffrey Ubben

The 29 other tracked superinvestors ranked by shared-ticker overlap with Jeffrey Ubben's (ValueAct Capital) latest 13F portfolio. Jaccard similarity — the fraction of tickers held by both investors out of the union of tickers held by either.

Top similar investors

  1. 1
    Joel Greenblatt
    Gotham Asset Management
    0%
    Jaccard
    1 shared of 3128 total tickers — NGVT
  2. 2
    Warren Buffett
    Berkshire Hathaway
    0%
    Jaccard
    0 shared of 28 total tickers
  3. 3
    Bill Ackman fund logo
    Bill Ackman
    Pershing Square Capital
    0%
    Jaccard
    0 shared of 12 total tickers
  4. 4
    Carl Icahn fund logo
    Carl Icahn
    Icahn Enterprises
    0%
    Jaccard
    0 shared of 13 total tickers
  5. 5
    David Einhorn
    Greenlight Capital
    0%
    Jaccard
    0 shared of 35 total tickers
  6. 6
    Seth Klarman
    Baupost Group
    0%
    Jaccard
    0 shared of 24 total tickers
  7. 7
    Michael Burry fund logo
    Michael Burry
    Scion Asset Management
    0%
    Jaccard
    0 shared of 9 total tickers
  8. 8
    Stanley Druckenmiller
    Duquesne Family Office
    0%
    Jaccard
    0 shared of 89 total tickers
  9. 9
    Li Lu fund logo
    Li Lu
    Himalaya Capital
    0%
    Jaccard
    0 shared of 9 total tickers
  10. 10
    Mohnish Pabrai
    Pabrai Investment Funds
    0%
    Jaccard
    0 shared of 5 total tickers
  11. 11
    Howard Marks fund logo
    Howard Marks
    Oaktree Capital
    0%
    Jaccard
    0 shared of 71 total tickers
  12. 12
    Prem Watsa fund logo
    Prem Watsa
    Fairfax Financial
    0%
    Jaccard
    0 shared of 31 total tickers
  13. 13
    Bill Nygren fund logo
    Bill Nygren
    Oakmark Funds
    0%
    Jaccard
    0 shared of 83 total tickers
  14. 14
    Glenn Greenberg
    Brave Warrior Advisors
    0%
    Jaccard
    0 shared of 40 total tickers
  15. 15
    Andreas Halvorsen
    Viking Global Investors
    0%
    Jaccard
    0 shared of 89 total tickers

Method

Jaccard similarity = |A ∩ B| / |A ∪ B| where A and B are the sets of tickers each investor holds in their most recent 13F filing.

A score of 100% means both investors hold exactly the same tickers. A score of 0% means no overlap. In practice, tracked superinvestors rarely exceed 40% — they pick unique spots even within similar philosophies.

Source data: SEC EDGAR 13F-HR filings, latest quarter available per investor. v1 uses unweighted Jaccard (set membership). v2 will add position-weighted similarity for a finer-grained score.

Related

Frequently asked questions

Which investors are most similar to Jeffrey Ubben?

Top portfolio-similarity peers to Jeffrey Ubben (ValueAct Capital): Joel Greenblatt (Gotham Asset Management, 0% Jaccard); Warren Buffett (Berkshire Hathaway, 0% Jaccard); Bill Ackman (Pershing Square Capital, 0% Jaccard). Full ranking of all 29 tracked peers below, by shared-ticker overlap.

How is investor similarity calculated?

HoldLens uses Jaccard similarity on shared tickers: |A ∩ B| / |A ∪ B|. For each pair of investors, count tickers held by both, divide by tickers held by either. Range 0% (no overlap) to 100% (identical portfolio). Computed from latest SEC 13F-HR filings for Jeffrey Ubben and the 29 other tracked superinvestors.

Why does Jeffrey Ubben's portfolio overlap with these investors?

Portfolio overlap reflects shared investment thesis, sector orientation, or fund-of-funds inheritance. High Jaccard (>50%) is rare and usually signals tight thesis alignment; 20-40% suggests overlapping sectors; <10% means distinct strategies. Click each peer below for their full 13F positions and ConvictionScore.

How current is the Jeffrey Ubben similarity ranking?

Updated on each quarterly 13F-HR filing cycle (45-day statutory lag per SEC). Similarity scores refresh as new positions are added or exited. See /methodology for the federation cadence + 13F filing-window math.

Similarity computed from publicly filed 13F portfolios. 13F filings show long US equity positions only (no shorts, no cash, no non-US positions). Not investment advice.

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