Birchbrook, Inc. holds a focused book of 304 reported positions worth $213.1M as of Q2 2026 (disclosed Jul 9, 2026, a ~9-day 13F lag). This quarter Honeywell Aerospace Inc first appears in 13F filings (one of 4 new listings in the book), a listing rather than a purchase; they opened Crowdstrike Holdings Inc - A and trimmed Vanguard Intermediate-Term T. Their largest long position is Vanguard Intermediate-Term T at 16% of the reported non-option book. Cloning the disclosed picks since 2025 would be +15% (+12.2%/yr). That is a simulation of the disclosed long book, not audited returns.
The reported book (valued from quarter-end) returned +19.1%, a 3.6-point gap that is the cost of the ~9-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Birchbrook, Inc.'s disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~9 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.
28% mapped to company sectors
+5 sectors below the cut, 2% together
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 Birchbrook, Inc.
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Donor Advised Charitable Giving, Inc. | 10 / 80 | $4.5B |
| Greenbrier Partners Capital Management, LLC | 8 / 80 | $1.2B |
| United American Securities Inc. (d/b/a UAS Asset Management) | 8 / 80 | $388.2M |
| Wit, LLC | 11 / 80 | $5.2B |
| Emerald Advisors, LLC | 33 / 80 | $657.3M |
| Ardent Capital Management, Inc. | 16 / 80 | $197.9M |
| Kearns & Associates LLC | 12 / 80 | $174.4M |
| Independent Investors Inc | 28 / 80 | $419.7M |
Ranked by the share of each fund's own book sitting in the names it shares with Birchbrook, Inc.: 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 | Vanguard Scottsdale FDS INTER TERM TREAS | $33.7M | 571.0K | 15.8% | ▼−2.6% Reduced · −15K sh | |
| 2 | Ishares TR ISHS 5-10YR INVT | $25.6M | 481.4K | 12.0% | ▲+3.2% Added · +15K sh | |
| 3 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $13.5M | 190.1K | 6.4% | ▼−3.1% Reduced · −6K sh | |
| 4 | Ishares Inc CORE MSCI EMKT | $10.7M | 129.4K | 5.0% | ▼−5.5% Reduced · −8K sh | |
| 5 | Vanguard Index FDS S&P 500 ETF SHS | $8.4M | 12.3K | 4.0% | ▲+5.0% Added · +588 sh | |
| 6 | Ishares TR CORE S&P MCP ETF | $8.3M | 107.8K | 3.9% | ▼−3.0% Reduced · −3K sh | |
| 7 | Ishares TR CORE S&P SCP ETF | $7.7M | 52.0K | 3.6% | ▼−2.5% Reduced · −1K sh | |
| 8 | Ishares TR 20 YR TR BD ETF | $7.5M | 86.8K | 3.5% | ▲+3.7% Added · +3K sh | |
| 9 | Ishares TR MSCI USA MIN ETF | $6.8M | 70.5K | 3.2% | ▼−2.5% Reduced · −2K sh | |
| 10 | Schwab Strategic TR US MID-CAP ETF | $5.4M | 145.6K | 2.5% | ▼−6.7% Reduced · −11K sh | |
| 11 | SPDR Series Trust SPDR S&P 500 ESG | $3.5M | 47.4K | 1.6% | ▼−1.2% Reduced · −575 sh | |
| 12 | Apple Inc COM | $3.3M | 11.6K | 1.6% | ▼−11% Reduced · −2K sh | |
| 13 | Alphabet Inc CAP STK CL A | $3.3M | 9.2K | 1.5% | ▼−13% Reduced · −1K sh | |
| 14 | Amazon Com Inc COM | $3.3M | 13.7K | 1.5% | ▼−4.0% Reduced · −566 sh | |
| 15 | Schwab Strategic TR US LCAP GR ETF | $3.2M | 94.0K | 1.5% | ▲+2.1% Added · +2K sh | |
| 16 | Microsoft Corp COM | $2.9M | 7.9K | 1.4% | ▲+11% Added · +769 sh | |
| 17 | JPMorgan Chase & Co COM | $2.7M | 8.2K | 1.3% | ▼−7.8% Reduced · −693 sh | |
| 18 | Idexx Labs Inc COM | $2.4M | 4.5K | 1.1% | ▼−0.8% Reduced · −37 sh | |
| 19 | Vanguard Scottsdale FDS SHORT TERM TREAS | $2.2M | 38.0K | 1.0% | ▲+1.8% Added · +675 sh | |
| 20 | Nvidia Corporation COM | $2.1M | 10.6K | 1.0% | ▼−3.8% Reduced · −422 sh | |
| 21 | International Business Machs COM | $2.1M | 7.4K | 1.0% | ▼−0.9% Reduced · −71 sh | |
| 22 | Vanguard Index FDS TOTAL STK MKT | $2.1M | 5.6K | 1.0% | ▼−1.7% Reduced · −94 sh | |
| 23 | Ishares TR ESG AW MSCI EAFE | $2.0M | 19.6K | 0.9% | ▲~0% Added · +7 sh | |
| 24 | Meta Platforms Inc CL A | $1.8M | 3.2K | 0.8% | ▼−2.3% Reduced · −76 sh | |
| 25 | Schwab Strategic TR US LRG CAP ETF | $1.7M | 58.7K | 0.8% | ▼−12% Reduced · −8K sh | |
| 26 | Ishares TR ESG AWRE USD ETF | $1.7M | 74.2K | 0.8% | ▲+2.8% Added · +2K sh | |
| 27 | Walmart Inc COM | $1.7M | 15.1K | 0.8% | ▼−8.7% Reduced · −1K sh | |
| 28 | Berkshire Hathaway Inc Del CL B NEW | $1.7M | 3.4K | 0.8% | ▼−8.6% Reduced · −318 sh | |
| 29 | Crowdstrike Hldgs Inc CL A | $1.4M | 1.8K | 0.7% | ▲New New position | |
| 30 | Fortinet Inc COM | $1.3M | 8.2K | 0.6% | ▼−49% Reduced · −8K sh | |
| 31 | Palo Alto Networks Inc COM | $1.2M | 3.6K | 0.6% | ▲21× Added · +3K sh | |
| 32 | Exxon Mobil Corp COM | $1.2M | 8.9K | 0.6% | ▼−7.6% Reduced · −727 sh | |
| 33 | Select Sector SPDR TR ST STR CARE ETF | $1.2M | 7.5K | 0.6% | ▼−19% Reduced · −2K sh | |
| 34 | Robinhood MKTS Inc COM CL A | $1.2M | 11.7K | 0.5% | ▲New New position | |
| 35 | Citigroup Inc COM NEW | $1.1M | 8.0K | 0.5% | ▼−50% Reduced · −8K sh | |
| 36 | Ishares TR ESG AWRE 1 5 YR | $1.1M | 43.6K | 0.5% | ▲+4.5% Added · +2K sh | |
| 37 | Ishares TR ESG SELECT SCRE | $1.1M | 20.7K | 0.5% | ▼−0.1% Reduced · −31 sh | |
| 38 | Uber Technologies Inc COM | $984K | 13.6K | 0.5% | ▲+2.9% Added · +380 sh | |
| 39 | Pepsico Inc COM | $923K | 6.8K | 0.4% | ▼−26% Reduced · −2K sh | |
| 40 | Johnson & Johnson COM | $911K | 3.6K | 0.4% | ▼−27% Reduced · −1K sh | |
| 41 | Disney Walt Co COM | $910K | 9.5K | 0.4% | ▼−1.0% Reduced · −93 sh | |
| 42 | Ishares Inc ESG AWR MSCI EM | $906K | 16.6K | 0.4% | ▼−4.2% Reduced · −719 sh | |
| 43 | Intel Corp COM | $902K | 6.5K | 0.4% | —Held | |
| 44 | Waste Mgmt Inc Del COM | $824K | 3.7K | 0.4% | ▼−4.9% Reduced · −189 sh | |
| 45 | Salesforce Inc COM | $810K | 5.2K | 0.4% | ▼−12% Reduced · −691 sh | |
| 46 | Intuitive Surgical Inc COM NEW | $797K | 2.0K | 0.4% | ▲+20% Added · +329 sh | |
| 47 | ConocoPhillips COM | $786K | 7.6K | 0.4% | ▼−4.1% Reduced · −320 sh | |
| 48 | Iqvia Hldgs Inc COM | $732K | 3.8K | 0.3% | ▼−6.0% Reduced · −241 sh | |
| 49 | Lockheed Martin Corp COM | $717K | 1.4K | 0.3% | ▼−11% Reduced · −168 sh | |
| 50 | Servicenow Inc COM | $688K | 6.9K | 0.3% | ▲New New position |
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/2071468/holdings"
Use Arkolith to show BIRCHBROOK, INC.'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.
| Quarter | As of | Filed | Lag | Positions | Value | Form |
|---|---|---|---|---|---|---|
| Q2 2026 | Jun 30, 2026 | Jul 9, 2026 | 9d | 305 | $213.1M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | Apr 8, 2026 | 8d | 291 | $203.9M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 4, 2026 | 35d | 298 | $200.6M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Nov 3, 2025 | 34d | 270 | $193.3M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Aug 11, 2025 | 42d | 276 | $186.6M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Jun 10, 2025 | 71d | 301 | $178.0M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jun 10, 2025 | 161d | 329 | $175.9M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Jun 10, 2025 | 253d | 301 | $180.4M | 13F-HR |
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.