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Optimist Fund

Dec 2024 → Jun 2026 · Publishes quarterly

Our archive holds 6 letters from Optimist Fund, behind 6 investment theses and positions in 10 companies. Every quote below is copied verbatim from the letter it came from.

Optimist Fund’s own letters page
6
Letters
10
Companies
2
Moves
6
Theses

What they bought and sold · 2 moves

Companies held · 10

Every company Optimist Fund has disclosed a position in across our archive, with the letter that last mentioned it.

Theses · 6

  • Affirm
    June 2026

    Affirm is a founder-led BNPL leader with strong underwriting, durable competitive advantages, and substantial long-term growth and margin expansion potential.

    Read the full thesis
  • Carvana
    June 2026

    Carvana is a fast-growing used-car retailer with strong operating leadership, remaining margin upside, and an attractive valuation.

    Read the full thesis
  • discoverIE Group plc
    December 2025

    discoverIE Group plc is a designer of bespoke industrial electronic components with structural growth drivers, a compounding model, and potential for earnings recovery and multiple expansion.

    Read the full thesis
  • Medpace
    September 2025

    Medpace is a leading CRO that achieves consistent growth and exceptional margins by focusing on serving small and mid-sized biotech companies with a disciplined, full-service approach under the leadership of its founder-CEO.

    Read the full thesis
  • First Advantage
    March 2025

    First Advantage is a leading provider of employment background checks that, following its acquisition of Sterling Check, is well-positioned for growth due to cyclical recovery, significant cost synergies, and deleveraging potential, suggesting a substantial upside in its stock value.

    Read the full thesis
  • ThredUp
    December 2024

    ThredUp is a leading second-hand managed marketplace in the U.S. that offers significant potential for free cash flow growth, currently undervalued due to past challenges, while uniquely providing a full-service selling experience.

    Read the full thesis

Letter archive · 6

2026

2025

2024

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