Once Capital Management, LLC holds a concentrated book of 22 reported positions worth $510.0M as of Q2 2026 (disclosed Jul 22, 2026, a ~22-day 13F lag). This quarter they opened Novanta Inc and trimmed Marvell Technology Inc. Their largest long position is Nvidia Corp at 22% of the reported non-option book. They also disclosed $708.5M in call options (bullish), shown separately below and excluded from the non-option book.
Top-heavy: 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
Other tracked managers holding the same core names as Once Capital Management, LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Donor Advised Charitable Giving, Inc. | 2 / 22 | $4.4B |
| Prospect Hill Management, LLC | 4 / 22 | $213.7M |
| Hoffman, Alan N Investment Management | 4 / 22 | $133.7M |
| Palidye Holdings (Caymans) Ltd | 2 / 22 | $410.9M |
| 9823 Capital, L.P. | 4 / 22 | $108.0M |
| Sloy Dahl & Holst, LLC | 9 / 22 | $585.4M |
| Josh Arnold Investment Consultant, LLC | 2 / 22 | $110.7M |
| Summa Corp. | 6 / 22 | $217.5M |
Ranked by the share of each fund's own book sitting in the names it shares with Once Capital Management, LLC: 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.
This fund page is the Follow view. The Build view lets your agent pull holdings, quarter changes, overlap, and source filings through API or MCP.
curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1712892/holdings"
Use Arkolith to show Once Capital Management, LLC's latest holdings, largest changes, and filing provenance.
Put / call positions from the 13F — totals include every disclosed option leg
| Type | Underlying | Notional value | Underlying shares |
|---|---|---|---|
| CALL · bullish | $698.6M | 3.5M | |
| CALL · bullish | $9.9M | 300K |
13F filers disclose option positions at the market value of the underlying the contracts reference, not the premium paid. A put is a bearish bet (it gains if the stock falls); a call is bullish. “Underlying shares” is the share count the contracts control, not a share holding. These legs are excluded from the non-option book, weighting, concentration and sector figures above.
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. Price-derived performance is withheld until the price-source policy and freshness gate are green.