Custos Family Office, LLC holds a focused book of 67 stocks worth $166.4M as of Q2 2026 (disclosed Aug 19, 2026, a ~50-day 13F lag). This quarter they opened Robinhood Markets Inc - A and trimmed Ishares Msci USA Quality Fac. Their largest long position is Ishares Core S&P 500 ETF at 20% of the equity book. They also disclosed $523K in call options (bullish), shown separately below and excluded from the equity book. Cloning the disclosed picks since 2024 would be +28% (+14.4%/yr). That is a simulation of the disclosed long book, not audited returns.
Following at the filing date actually beat the quarter-end book by 3.3 points over this window.
Growth of $10,000 cloning Custos Family Office, LLC's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~50 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: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
18% 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, no cost basis
Other tracked managers holding the same core names as Custos Family Office, LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| BlackRock, Inc. | 79 / 67 | $2.4T |
| FMR LLC | 79 / 67 | $818.9B |
| MORGAN STANLEY | 79 / 67 | $647.7B |
| JPMORGAN CHASE & CO | 79 / 67 | $592.1B |
| BANK OF AMERICA CORP /DE/ | 79 / 67 | $475.1B |
| WELLS FARGO & COMPANY/MN | 79 / 67 | $197.0B |
| ROYAL BANK OF CANADA | 79 / 67 | $181.1B |
| UBS Group AG | 79 / 67 | $176.3B |
Ranked by how many of Custos Family Office, LLC's top 67 disclosed names each fund also holds: a cross-fund conviction signal from the latest 13F of every tracked manager.
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Ishares TR CORE S&P500 ETF | $33.3M | 44.4K | 20.0% | ▲+0.1% Added · +26 sh | |
| 2 | Vanguard Intl Equity Index F FTSE EMR MKT ETF | $13.7M | 228.7K | 8.2% | ▲+0.1% Added · +157 sh | |
| 3 | Ishares TR CORE DIV GRWTH | $9.9M | 130.1K | 5.9% | ▲+0.9% Added · +1K sh | |
| 4 | Fidelity Covington Trust VLU FACTOR ETF | $9.6M | 123.1K | 5.8% | ▲+0.4% Added · +488 sh | |
| 5 | Ishares TR CORE MSCI EAFE | $9.2M | 95.4K | 5.5% | ▲+2.6% Added · +2K sh | |
| 6 | Ishares TR MSCI USA MIN ETF | $8.1M | 84.4K | 4.9% | ▲+1.1% Added · +929 sh | |
| 7 | Vanguard Index FDS MID CAP ETF | $8.1M | 101.0K | 4.9% | ▲+307% Added · +76K sh | |
| 8 | Ishares Inc CORE MSCI EMKT | $7.5M | 90.7K | 4.5% | ▲+3.2% Added · +3K sh | |
| 9 | Ishares TR 20 YR TR BD ETF | $6.6M | 76.2K | 4.0% | ▲+1.1% Added · +836 sh | |
| 10 | Invesco QQQ TR UNIT SER 1 | $6.0M | 8.1K | 3.6% | ▲+0.6% Added · +49 sh | |
| 11 | Ishares TR MSCI USA QLT FCT | $5.3M | 24.3K | 3.2% | ▼−0.2% Reduced · −52 sh | |
| 12 | Apple Inc COM | $5.1M | 17.5K | 3.0% | ▼−2.4% Reduced · −423 sh | |
| 13 | State STR SPDR S&P 500 ETF T TR UNIT | $4.1M | 5.5K | 2.5% | ▲+0.1% Added · +6 sh | |
| 14 | Core Scientific Inc New COM | $3.1M | 121.3K | 1.9% | —Held | |
| 15 | Vanguard Index FDS TOTAL STK MKT | $3.0M | 8.0K | 1.8% | ▲+291% Added · +6K sh | |
| 16 | Vanguard Whitehall FDS EM MK GOV BD ETF | $2.7M | 40.0K | 1.6% | ▲+0.9% Added · +373 sh | |
| 17 | Ishares TR MSCI INDIA ETF | $2.5M | 50.0K | 1.5% | ▲+3.2% Added · +2K sh | |
| 18 | Vanguard Intl Equity Index F FTSE EUROPE ETF | $1.6M | 18.4K | 1.0% | ▲+1.4% Added · +247 sh | |
| 19 | Microsoft Corp COM | $1.5M | 4.1K | 0.9% | ▲+2.9% Added · +117 sh | |
| 20 | Tesla Inc COM | $1.5M | 3.5K | 0.9% | ▲+0.1% Added · +4 sh | |
| 21 | Crowdstrike Hldgs Inc CL A | $1.4M | 1.8K | 0.8% | —Held | |
| 22 | Ishares TR JPMORGAN USD EMG | $1.3M | 13.4K | 0.8% | ▲+15% Added · +2K sh | |
| 23 | Nvidia Corporation COM | $1.3M | 6.3K | 0.8% | ▼−19% Reduced · −1K sh | |
| 24 | Pepsico Inc COM | $989K | 7.3K | 0.6% | ▲+0.5% Added · +38 sh | |
| 25 | Coinbase Global Inc COM CL A | $964K | 6.6K | 0.6% | ▲+108% Added · +3K sh | |
| 26 | Nike Inc CL B | $941K | 22.9K | 0.6% | ▲+156% Added · +14K sh | |
| 27 | Meta Platforms Inc CL A | $811K | 1.4K | 0.5% | ▼−9.8% Reduced · −156 sh | |
| 28 | Boeing Co COM | $774K | 3.6K | 0.5% | —Held | |
| 29 | Robinhood MKTS Inc COM CL A | $773K | 7.7K | 0.5% | ▲New New position | |
| 30 | Ishares Bitcoin Trust ETF SHS BEN INT | $704K | 21.1K | 0.4% | ▲+252% Added · +15K sh | |
| 31 | Alphabet Inc CAP STK CL A | $673K | 1.9K | 0.4% | ▼−19% Reduced · −454 sh | |
| 32 | Schwab Strategic TR US BRD MKT ETF | $652K | 22.5K | 0.4% | —Held | |
| 33 | Roblox Corp CL A | $598K | 11.0K | 0.4% | ▲New New position | |
| 34 | Caterpillar Inc COM | $557K | 523 | 0.3% | ▼−2.6% Reduced · −14 sh | |
| 35 | Amazon Com Inc COM | $553K | 2.3K | 0.3% | ▼−19% Reduced · −557 sh | |
| 36 | Vaneck ETF Trust GOLD MINERS ETF | $540K | 7.2K | 0.3% | —Held | |
| 37 | Unitedhealth Group Inc COM | $539K | 1.3K | 0.3% | ▲+3.6% Added · +45 sh | |
| 38 | Micron Technology Inc COM | $527K | 457 | 0.3% | ▲New New position | |
| 39 | Broadcom Inc COM | $514K | 1.4K | 0.3% | ▼−28% Reduced · −527 sh | |
| 40 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $507K | 7.1K | 0.3% | ▲+0.3% Added · +24 sh | |
| 41 | SPDR Gold TR GOLD SHS | $465K | 1.3K | 0.3% | —Held | |
| 42 | Visa Inc COM CL A | $460K | 1.3K | 0.3% | ▲+2.4% Added · +31 sh | |
| 43 | Ishares TR RUS 1000 GRW ETF | $447K | 3.6K | 0.3% | ▲+300% Added · +3K sh | |
| 44 | Vanguard Star FDS VG TL INTL STK F | $424K | 5.0K | 0.3% | ▲New New position | |
| 45 | Vanguard Index FDS S&P 500 ETF SHS | $423K | 616 | 0.3% | ▲+0.3% Added · +2 sh | |
| 46 | Johnson & Johnson COM | $422K | 1.7K | 0.3% | ▲+3.7% Added · +60 sh | |
| 47 | Cisco Sys Inc COM | $409K | 3.5K | 0.2% | ▼−34% Reduced · −2K sh | |
| 48 | Sabine Rty TR UNIT BEN INT | $407K | 5.6K | 0.2% | —Held | |
| 49 | Exxon Mobil Corp COM | $406K | 3.0K | 0.2% | ▼−29% Reduced · −1K sh | |
| 50 | Alphabet Inc CAP STK CL C | $392K | 1.1K | 0.2% | ▼−22% Reduced · −316 sh |
The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.
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/1904423/holdings"
Use Arkolith to show Custos Family Office, 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 | SS SPDR S&P 500 ETF TRUST-USSPY | $523K | 700 |
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 equity book, weighting, concentration and sector figures above.
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Aug 19, 2026 | 71 | $166.9M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | Aug 19, 2026 | 67 | $144.6M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 17, 2026 | 60 | $146.5M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 16, 2025 | 65 | $176.9M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 21, 2025 | 73 | $313.6M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 25, 2025 | 67 | $281.9M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 10, 2025 | 70 | $285.8M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Oct 21, 2024 | 55 | $276.0M | 13F-HR |
Holdings from SEC EDGAR 13F-HR filings, updated quarterly, filed up to 45 days after quarter-end. Public domain. The book and weighting are long equity only; 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.