River Street Advisors LLC holds a diversified book of 177 reported positions worth $339.5M as of Q2 2026 (disclosed Jul 21, 2026, a ~21-day 13F lag). This quarter Honeywell Aerospace Inc first appears in 13F filings, a listing rather than a purchase; they opened Vanguard Ftse Emerging Marke and trimmed Caterpillar Inc. Their largest long position is MFS Active International at 7% of the reported non-option book. Cloning the disclosed picks since 2024 would be +33% (+16.7%/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 4.5 points over this window.
Growth of $10,000 cloning River Street Advisors LLC's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~21 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: diversified book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
59% mapped to company sectors
+5 sectors below the cut, 6% 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 River Street Advisors LLC
| Manager / fund | Shared names | Their $ in those |
|---|---|---|
| Swiss Re Ltd | 40 / 80 | $1.0B |
| Hoffman, Alan N Investment Management | 8 / 80 | $156.7M |
| Uhlmann Price Securities, LLC | 33 / 80 | $2.4B |
| 9823 Capital, L.P. | 9 / 80 | $126.7M |
| United American Securities Inc. (d/b/a UAS Asset Management) | 8 / 80 | $381.1M |
| Emerald Advisors, LLC | 37 / 80 | $647.9M |
| Conway Capital Management, Inc. | 15 / 80 | $180.1M |
| Independent Investors Inc | 24 / 80 | $413.9M |
Ranked by the share of each fund's own book sitting in the names it shares with River Street Advisors 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.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | MFS Active Exchange Traded F INTERNATINL ETF | $23.2M | 714.9K | 6.8% | ▲+1.9% Added · +13K sh | |
| 2 | Old Second Bancorp Inc Del COM | $18.2M | 779.0K | 5.4% | ▲+4.3% Added · +32K sh | |
| 3 | Ishares TR CORE S&P MCP ETF | $17.4M | 225.2K | 5.1% | ▲+0.8% Added · +2K sh | |
| 4 | Nvidia Corporation COM | $11.8M | 58.9K | 3.5% | ▲+1.4% Added · +818 sh | |
| 5 | SPDR Series Trust ST STR P500ETF | $10.4M | 118.4K | 3.1% | ▲+5.5% Added · +6K sh | |
| 6 | Apple Inc COM | $9.4M | 32.4K | 2.8% | ▲+0.5% Added · +173 sh | |
| 7 | Caterpillar Inc COM | $8.7M | 8.1K | 2.6% | ▼−1.5% Reduced · −127 sh | |
| 8 | Broadcom Inc COM | $8.4M | 22.3K | 2.5% | ▲+0.2% Added · +55 sh | |
| 9 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $8.0M | 112.1K | 2.4% | ▲+2.2% Added · +2K sh | |
| 10 | Alphabet Inc CAP STK CL A | $7.9M | 22.2K | 2.3% | ▼−0.2% Reduced · −54 sh | |
| 11 | JPMorgan Chase & Co COM | $7.5M | 22.9K | 2.2% | ▲+1.8% Added · +398 sh | |
| 12 | Invesco Exch TRD SLF Idx FD BULSHS 2027 CB | $6.7M | 342.6K | 2.0% | ▲+8.4% Added · +26K sh | |
| 13 | Microsoft Corp COM | $6.7M | 17.9K | 2.0% | ▲+8.8% Added · +1K sh | |
| 14 | Vanguard Intl Equity Index F FTSE EMR MKT ETF | $6.3M | 105.5K | 1.9% | ▲New New position | |
| 15 | Kla Corp COM NEW | $6.1M | 20.3K | 1.8% | ▲+875% Added · +18K sh | |
| 16 | Eli Lilly & Co COM | $5.6M | 4.7K | 1.6% | ▲+0.8% Added · +39 sh | |
| 17 | Cummins Inc COM | $4.9M | 6.9K | 1.4% | ▼−1.6% Reduced · −113 sh | |
| 18 | Morgan Stanley COM NEW | $4.8M | 22.9K | 1.4% | ▲+0.8% Added · +180 sh | |
| 19 | Corning Inc COM | $4.7M | 18.6K | 1.4% | ▼−47% Reduced · −16K sh | |
| 20 | Vanguard Intl Equity Index F TT WRLD ST ETF | $4.5M | 28.5K | 1.3% | ▲+1.3% Added · +372 sh | |
| 21 | Amazon Com Inc COM | $4.4M | 18.4K | 1.3% | ▲+0.8% Added · +143 sh | |
| 22 | Invesco Exch TRD SLF Idx FD INVSCO BLSH 28 | $3.8M | 188.4K | 1.1% | ▲+8.2% Added · +14K sh | |
| 23 | Invesco Exch TRD SLF Idx FD BULETSHS 2027 | $3.7M | 167.6K | 1.1% | ▲+18% Added · +26K sh | |
| 24 | Abbvie Inc COM | $3.5M | 13.8K | 1.0% | ▲+1.5% Added · +205 sh | |
| 25 | Johnson & Johnson COM | $3.4M | 13.3K | 1.0% | ▲+1.5% Added · +199 sh | |
| 26 | Valero Energy Corp COM | $3.2M | 12.4K | 1.0% | ▲+0.7% Added · +84 sh | |
| 27 | BlackRock Inc COM | $3.1M | 3.2K | 0.9% | ▲+2.5% Added · +78 sh | |
| 28 | Chevron Corporation COM | $3.0M | 18.1K | 0.9% | ▲+26% Added · +4K sh | |
| 29 | Blackstone Inc COM | $3.0M | 25.4K | 0.9% | ▲+29% Added · +6K sh | |
| 30 | T Rowe Price Exchange-Traded FLOATING RATE | $2.9M | 57.3K | 0.9% | ▲+8.4% Added · +4K sh | |
| 31 | Invesco QQQ TR UNIT SER 1 | $2.9M | 3.9K | 0.8% | ▼−1.0% Reduced · −40 sh | |
| 32 | State STR SPDR S&P 500 ETF T TR UNIT | $2.6M | 3.5K | 0.8% | ▼−16% Reduced · −664 sh | |
| 33 | Pulte Group Inc COM | $2.6M | 18.8K | 0.8% | ▲+3.3% Added · +606 sh | |
| 34 | Pepsico Inc COM | $2.5M | 18.7K | 0.7% | ▲+3.6% Added · +649 sh | |
| 35 | Eaton Corp PLC SHS | $2.5M | 5.8K | 0.7% | ▲+3.4% Added · +192 sh | |
| 36 | SPDR Series Trust ST STR P500VAL | $2.4M | 39.4K | 0.7% | ▲+16% Added · +5K sh | |
| 37 | Eog Res Inc COM | $2.3M | 18.0K | 0.7% | ▲+36% Added · +5K sh | |
| 38 | Vanguard Intl Equity Index F FTSE EUROPE ETF | $2.2M | 25.4K | 0.7% | ▼−3.2% Reduced · −833 sh | |
| 39 | NextEra Energy Inc COM | $2.2M | 25.4K | 0.7% | ▲+8.0% Added · +2K sh | |
| 40 | Capital One Finl Corp COM | $2.1M | 10.3K | 0.6% | ▲+9.4% Added · +890 sh | |
| 41 | Viking Holdings Ltd ORD SHS | $2.0M | 19.0K | 0.6% | ▼−1.2% Reduced · −238 sh | |
| 42 | Northrop Grumman Corp COM | $2.0M | 3.8K | 0.6% | ▲+3.4% Added · +128 sh | |
| 43 | Metlife Inc COM | $1.9M | 23.0K | 0.6% | ▲+4.4% Added · +977 sh | |
| 44 | Sofi Technologies Inc COM | $1.9M | 107.7K | 0.6% | ▲+93% Added · +52K sh | |
| 45 | Ishares TR CORE S&P500 ETF | $1.9M | 2.6K | 0.6% | ▼−0.4% Reduced · −10 sh | |
| 46 | SPDR Series Trust ST STR P500GRW | $1.9M | 15.7K | 0.5% | ▲+14% Added · +2K sh | |
| 47 | Qualcomm Inc COM | $1.9M | 10.1K | 0.5% | ▲+2.2% Added · +214 sh | |
| 48 | Home Depot Inc COM | $1.9M | 5.3K | 0.5% | ▲+5.3% Added · +268 sh | |
| 49 | SPDR Index SHS FDS ST STR PO EX ETF | $1.8M | 36.5K | 0.5% | ▲+19% Added · +6K sh | |
| 50 | Federated Hermes ETF Trust TOTA RETU BD ETF | $1.8M | 73.1K | 0.5% | ▲+6.4% Added · +4K sh |
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/1964897/holdings"
Use Arkolith to show River Street Advisors LLC'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 21, 2026 | 21d | 255 | $339.5M | 13F-HR |
| Q1 2026 | Mar 31, 2026 | Apr 21, 2026 | 21d | 248 | $295.9M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Jan 26, 2026 | 26d | 244 | $266.9M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 22, 2025 | 22d | 241 | $257.9M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 21, 2025 | 21d | 240 | $232.2M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 21, 2025 | 21d | 221 | $202.0M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 24, 2025 | 24d | 217 | $195.5M | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 6, 2024 | 37d | 227 | $184.2M | 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.