This Week in the Index- Anthropic Takes the Throne

Week of July 30 – August 5, 2026

Quick Summary

Welcome back to This Week in the Index, where we’ll give a brief overview of what happened this week among Prime Unicorn Index components. Anthropic leaps to the top of the Index following a secondary transaction, dethroning SpaceX for the first time since 2021. The Prime Unicorn 30 Index is +6.7% week over week.

Primary Rounds & Filings

  • Onebrief, Inc.*: Series E authorized at $94.33 PPPS (+24.5% vs prior round)

Secondary Transactions

  • ClickHouse: $225.40 (+41.2%)
  • Anthropic: $925.00 (+57.0%)
  • OpenAI: $712.00 (−3.8%)

Public Components

  • Cerebras (CBRS): +26.5% to $214.30
  • SpaceX (SPCX): −3.8% to $108.27
  • Ethos (LIFE)*: +39.7% to $27.72
  • Fervo Energy (FRVO)*: +29.1% to $22.05
  • Hawkeye 360 (HAWK)*: +23.8% to $23.53
  • EquipmentShare (EQPT)*: +11.3% to $19.99
  • Generate Biomedicines (GENB)*: +10.8% to $14.49
  • Freenome Holdings, Inc. (FRNM)*: +8.4% to $10.91

Notable News

Index Performance

The Prime Unicorn 30 Index closed at 306.78 on Aug 5, up 6.7% vs 287.47 on Jul 29.

*These companies are components of the Prime Unicorn Composite Index, but are not included in the Prime Unicorn 30 Index.