Breakwater Investment Management holds a focused book of 506 stocks worth $268.9M as of Q1 2026 (disclosed May 15, 2026, a ~45-day 13F lag). This quarter they opened Bunge Global Sa and trimmed Vanguard Total Stock MKT ETF. Their largest long position is Vanguard Total Stock MKT ETF at 14% of the equity book. Cloning the disclosed picks since 2024 would be +25% (+11.2%/yr). That is a simulation of the disclosed long book, not audited returns.
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/2025925/holdings"
Use Arkolith to show Breakwater Investment Management's latest holdings, largest changes, and filing provenance.
The reported book (valued from quarter-end) returned +28.0%, a 2.5-point gap that is the cost of the ~45-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Breakwater Investment Management'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: focused book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
8% 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
Bars show each stock's share of the portfolio. Click a row for its position history.
| # | Security | Value | Shares | % Port | Last move | History |
|---|---|---|---|---|---|---|
| 1 | Vanguard Index FDS TOTAL STK MKT | $37.7M | 117.5K | 14.0% | ▼−2.4% Reduced · −3K sh | |
| 2 | Schwab Strategic TR US BRD MKT ETF | $21.5M | 858.2K | 8.0% | ▼−1.6% Reduced · −14K sh | |
| 3 | Vanguard Star FDS VG TL INTL STK F | $17.7M | 229.7K | 6.6% | ▼−2.5% Reduced · −6K sh | |
| 4 | Vanguard BD Index FDS TOTAL BND MRKT | $10.3M | 140.2K | 3.8% | ▼−8.0% Reduced · −12K sh | |
| 5 | Microsoft Corp COM | $9.2M | 25.0K | 3.4% | ▼−1.2% Reduced · −296 sh | |
| 6 | Vanguard Charlotte FDS TOTAL INT BD ETF | $9.2M | 192.1K | 3.4% | ▼−20% Reduced · −47K sh | |
| 7 | SPDR Series Trust STATE STREET SPD | $7.3M | 92.8K | 2.7% | ▲+1.9% Added · +2K sh | |
| 8 | Vanguard Intl Equity Index F ALLWRLD EX US | $7.1M | 94.2K | 2.6% | ▲+0.7% Added · +670 sh | |
| 9 | Vanguard Malvern FDS CORE BD ETF | $6.6M | 85.1K | 2.4% | ▲+0.9% Added · +792 sh | |
| 10 | Schwab Strategic TR CORE BOND ETF | $6.2M | 241.0K | 2.3% | ▲+21% Added · +41K sh | |
| 11 | Vanguard Intl Equity Index F TT WRLD ST ETF | $5.9M | 42.5K | 2.2% | ▼−0.4% Reduced · −163 sh | |
| 12 | Vanguard Whitehall FDS HIGH DIV YLD | $5.7M | 38.6K | 2.1% | ▼−2.0% Reduced · −791 sh | |
| 13 | State STR SPDR S&P 500 ETF T TR UNIT | $5.6M | 8.7K | 2.1% | ▲+0.3% Added · +30 sh | |
| 14 | Vanguard Intl Equity Index F FTSE EMR MKT ETF | $5.6M | 103.9K | 2.1% | ▼−1.4% Reduced · −2K sh | |
| 15 | Ishares TR CORE INTL AGGR | $5.4M | 107.0K | 2.0% | ▲+19% Added · +17K sh | |
| 16 | Schwab Strategic TR INTL EQTY ETF | $5.3M | 212.4K | 2.0% | ▼−1.8% Reduced · −4K sh | |
| 17 | Vanguard Specialized Funds DIV APP ETF | $5.1M | 23.6K | 1.9% | ▼−2.3% Reduced · −547 sh | |
| 18 | Vanguard World FD MEGA GRWTH IND | $4.5M | 12.1K | 1.7% | ▼−0.9% Reduced · −114 sh | |
| 19 | Schwab Strategic TR US DIVIDEND EQ | $4.4M | 144.3K | 1.6% | ▼−1.5% Reduced · −2K sh | |
| 20 | Vanguard World FD MEGA CAP VAL ETF | $4.4M | 30.2K | 1.6% | ▼−2.8% Reduced · −871 sh | |
| 21 | Amazon Com Inc COM | $4.3M | 20.7K | 1.6% | ▼−2.5% Reduced · −522 sh | |
| 22 | Vanguard Scottsdale FDS SHORT TERM TREAS | $3.8M | 65.8K | 1.4% | ▼−1.4% Reduced · −944 sh | |
| 23 | Vanguard Whitehall FDS INTL HIGH ETF | $3.3M | 35.5K | 1.2% | ▼−0.1% Reduced · −22 sh | |
| 24 | Schwab Strategic TR US AGGREGATE B | $3.2M | 138.2K | 1.2% | ▼−5.5% Reduced · −8K sh | |
| 25 | Schwab Strategic TR SHT TM US TRES | $2.8M | 115.7K | 1.0% | ▼−1.7% Reduced · −2K sh | |
| 26 | SPDR Index SHS FDS STATE STREET SPD | $2.7M | 59.5K | 1.0% | ▼−0.4% Reduced · −223 sh | |
| 27 | SPDR Series Trust STATE STREET SPD | $2.5M | 96.0K | 0.9% | ▲+45% Added · +30K sh | |
| 28 | SPDR Index SHS FDS STATE STREET SPD | $2.3M | 30.6K | 0.9% | ▼−0.3% Reduced · −108 sh | |
| 29 | Schwab Strategic TR EMRG MKTEQ ETF | $2.1M | 63.9K | 0.8% | ▼−11% Reduced · −8K sh | |
| 30 | Vanguard Whitehall FDS EM MK GOV BD ETF | $2.0M | 29.7K | 0.7% | ▼−0.6% Reduced · −169 sh | |
| 31 | Schwab Strategic TR US TIPS ETF | $1.9M | 72.6K | 0.7% | ▼−0.1% Reduced · −40 sh | |
| 32 | Schwab Strategic TR MUN BD ETF | $1.9M | 73.5K | 0.7% | ▲+7.9% Added · +5K sh | |
| 33 | SPDR Series Trust STATE STREET SPD | $1.8M | 71.8K | 0.7% | ▲16× Added · +67K sh | |
| 34 | Vanguard Index FDS REAL ESTATE ETF | $1.6M | 18.0K | 0.6% | ▼−12% Reduced · −2K sh | |
| 35 | Vanguard Intl Equity Index F FTSE EUROPE ETF | $1.5M | 18.5K | 0.6% | ▲+1.0% Added · +181 sh | |
| 36 | Ishares Inc EURO HIGH YIELD | $1.5M | 27.9K | 0.5% | ▼−5.9% Reduced · −2K sh | |
| 37 | Vanguard Malvern FDS STRM INFPROIDX | $1.4M | 28.8K | 0.5% | ▼−1.7% Reduced · −510 sh | |
| 38 | Vanguard Mun BD FDS TAX EXEMPT BD | $1.4M | 27.6K | 0.5% | ▲+22% Added · +5K sh | |
| 39 | Schwab Strategic TR US LRG CAP ETF | $1.4M | 53.6K | 0.5% | ▼−4.0% Reduced · −2K sh | |
| 40 | Vanguard Index FDS GROWTH ETF | $1.4M | 3.1K | 0.5% | ▼−4.2% Reduced · −137 sh | |
| 41 | Schwab Strategic TR US REIT ETF | $1.3M | 61.9K | 0.5% | ▲+3.3% Added · +2K sh | |
| 42 | Vanguard Whitehall FDS INTL DVD ETF | $1.3M | 14.8K | 0.5% | —Held | |
| 43 | SPDR Gold TR GOLD SHS | $1.3M | 3.0K | 0.5% | —Held | |
| 44 | J P Morgan Exchange Traded F BETABUILDERS EUR | $1.3M | 17.7K | 0.5% | ▼−20% Reduced · −4K sh | |
| 45 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $1.3M | 19.7K | 0.5% | ▼~0% Reduced · −1 sh | |
| 46 | Ishares TR 0-5 YR TIPS ETF | $1.2M | 12.0K | 0.5% | ▲+0.1% Added · +7 sh | |
| 47 | Vanguard Index FDS VALUE ETF | $1.2M | 6.3K | 0.5% | ▲+4.3% Added · +259 sh | |
| 48 | Vanguard Scottsdale FDS INTER TERM TREAS | $1.2M | 20.3K | 0.5% | —Held | |
| 49 | Alphabet Inc CAP STK CL A | $1.2M | 4.2K | 0.4% | —Held | |
| 50 | Vanguard World FD MEGA CAP INDEX | $1.2M | 4.9K | 0.4% | ▼−16% Reduced · −905 sh |
As-of date vs the date the SEC received each filing
| Quarter | As of | Filed | Positions | Value | Form |
|---|---|---|---|---|---|
| Q1 2026 | Mar 31, 2026 | May 15, 2026 | 506 | $268.9M | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Feb 2, 2026 | 497 | $276.4M | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 3, 2025 | 530 | $271.2M | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 9, 2025 | 310 | $258.5M | 13F-HR |
| Q1 2025 | Mar 31, 2025 | Apr 17, 2025 | 315 | $234.2M | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Jan 16, 2025 | 309 | $235.2M | 13F-HR/A |
| Q3 2024 | Sep 30, 2024 | Jan 16, 2025 | 310 | $239.5M | 13F-HR/A |
| Q2 2024 | Jun 30, 2024 | Aug 8, 2024 | 317 | $223.6M | 13F-HR |
| Q1 2024 | Mar 31, 2024 | Jun 14, 2024 | 314 | $217.3M | 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.