Index Venture Growth Associates III Ltd holds a concentrated book of 2 reported positions worth $150.2M as of Q2 2026 (disclosed Aug 14, 2026, a ~45-day 13F lag). This quarter they trimmed Robinhood Markets Inc - A. Their largest long position is Robinhood Markets Inc - A at 98% of the reported non-option book. Cloning the disclosed picks since 2025 would be +6% (+5.5%/yr). That is a simulation of the disclosed long book, not audited returns.
The reported book (valued from quarter-end) returned +15.9%, a 10.0-point gap that is the cost of the ~45-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Index Venture Growth Associates III Ltd's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~45 days for the latest filing, with no look-ahead), total-return basis (dividends reinvested), derived from end-of-day prices. “Their reported book” values the same picks from quarter-end, before they were public. S&P 500 is SPY total return over the same window. Excludes shorts, cash, options and non-13F holdings. Not investment advice.
Top-heavy: concentrated book
Excluding Robinhood Markets Inc - A (98% of the book), the rest is a concentrated book:
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
100% mapped to company sectors
Direct operating-company sectors from our SIC-based security master. ETF/fund and unclassified holdings stay visible separately; this is not ETF look-through exposure.
Estimated $ traded · quarter-end prices (an exit at the prior quarter-end), no cost basis
No buys this quarter.
Other tracked managers holding the same core names as Index Venture Growth Associates III Ltd
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Persistent Asset Partners Ltd | 2 / 2 | $19.2M |
| Amova Asset Management Americas, Inc. | 2 / 2 | $388.7M |
| Cathie Wood | 2 / 2 | $566.9M |
| Clare Market Investments LLC | 2 / 2 | $8.8M |
| T. Rowe Price Investment Management, Inc. | 2 / 2 | $2.4M |
| Gilder Gagnon Howe & Co LLC | 2 / 2 | $148.7M |
| Iq Eq Fund Management (Ireland) Ltd | 2 / 2 | $24.0M |
| Finivi Inc. | 2 / 2 | $2.4M |
Ranked by the share of each fund's own book sitting in the names it shares with Index Venture Growth Associates III Ltd: only funds sharing at least a tenth of the book qualify. Index giants, bank custody books and market makers are excluded. They hold everything, so their overlap says nothing.
Bars show each position's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Robinhood MKTS Inc COM CL A | $146.8M | 1.46M | 97.7% | ▼−12% Reduced · −209K sh | |
| 2 | Aurora Innovation Inc CLASS A COM | $3.4M | 500.0K | 2.3% | —Held |
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Use Arkolith to show Index Venture Growth Associates III Ltd's latest holdings, largest changes, and filing provenance.
As-of date vs the date the SEC received each filing
Reported 13F total per quarter. Raw filing totals can include option notional.
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. Book totals and portfolio weights cover reported non-option positions, which can include notes and warrants. Disclosed put/call options are listed separately and excluded from those totals. The performance line is a simulation of the disclosed long book, not an audited return.