Alesco Advisors, LLC, An ESL Co holds a focused book of 243 stocks worth $3.9B as of Q1 2026 (disclosed May 13, 2026, a ~43-day 13F lag). This quarter they opened Taiwan Semiconductor-SP ADR and trimmed Ishares Core S&P 500 ETF. Their largest long position is Ishares Core S&P 500 ETF at 22% of the equity book. Cloning the disclosed picks since 2013 would be +193% (+8.8%/yr). That is a simulation of the disclosed long book, not audited returns.
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curl -H "Authorization: Bearer YOUR_API_KEY" \ "https://arkolith.com/api/v1/funds/1269978/holdings"
Use Arkolith to show Alesco Advisors, LLC, An ESL Co's latest holdings, largest changes, and filing provenance.
The reported book (valued from quarter-end) returned +216.4%, a 23.7-point gap that is the cost of the ~43-day 13F disclosure lag a real follower can't avoid.
Growth of $10,000 cloning Alesco Advisors, LLC, An ESL Co's disclosed long 13F book, rebalanced on each filing date (so it reflects each quarter's actual reporting lag, ~43 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.
3% 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 | Ishares TR CORE S&P500 ETF | $846.1M | 1.30M | 21.6% | ▼−0.3% Reduced · −4K sh | |
| 2 | Ishares TR CORE S&P MCP ETF | $364.0M | 5.39M | 9.3% | ▲+0.3% Added · +17K sh | |
| 3 | Ishares TR CORE S&P SCP ETF | $278.5M | 2.24M | 7.1% | ▼−3.0% Reduced · −68K sh | |
| 4 | Ishares TR CORE MSCI INTL | $257.8M | 3.08M | 6.6% | ▼−0.5% Reduced · −15K sh | |
| 5 | Vanguard BD Index FDS TOTAL BND MRKT | $202.4M | 2.75M | 5.2% | ▲+8.0% Added · +204K sh | |
| 6 | Schwab Strategic TR US TIPS ETF | $162.9M | 6.12M | 4.2% | ▲+2.8% Added · +165K sh | |
| 7 | Ishares Inc CORE MSCI EMKT | $161.4M | 2.31M | 4.1% | ▼−2.1% Reduced · −50K sh | |
| 8 | State STR SPDR S&P 500 ETF T TR UNIT | $138.3M | 212.7K | 3.5% | ▼−2.1% Reduced · −5K sh | |
| 9 | Ishares TR CORE MSCI EAFE | $134.4M | 1.48M | 3.4% | ▼−2.4% Reduced · −37K sh | |
| 10 | American Centy ETF TR US SML CP VALU | $116.2M | 1.05M | 3.0% | ▼−2.0% Reduced · −21K sh | |
| 11 | Vanguard Malvern FDS STRM INFPROIDX | $104.9M | 2.10M | 2.7% | ▲+3.0% Added · +62K sh | |
| 12 | American Centy ETF TR US LARGE CAP VLU | $104.1M | 1.29M | 2.7% | ▼−2.5% Reduced · −34K sh | |
| 13 | Dimensional ETF Trust US HIGH PROFITAB | $96.7M | 2.63M | 2.5% | ▲+0.5% Added · +14K sh | |
| 14 | Ishares TR EAFE VALUE ETF | $96.5M | 1.30M | 2.5% | ▼−3.3% Reduced · −45K sh | |
| 15 | Ishares TR US TREAS BD ETF | $84.6M | 3.69M | 2.2% | ▲+4.7% Added · +165K sh | |
| 16 | Vanguard Scottsdale FDS MTG-BKD SECS ETF | $75.0M | 1.60M | 1.9% | ▲+4.5% Added · +69K sh | |
| 17 | Vanguard Tax-Managed FDS VAN FTSE DEV MKT | $52.6M | 820.2K | 1.3% | ▼−5.1% Reduced · −44K sh | |
| 18 | Ishares TR ESG AWR MSCI USA | $34.2M | 241.6K | 0.9% | ▼−2.9% Reduced · −7K sh | |
| 19 | Ishares TR ESG AWR US AGRGT | $31.0M | 651.4K | 0.8% | ▲+0.8% Added · +5K sh | |
| 20 | Vanguard Intl Equity Index F FTSE EMR MKT ETF | $24.6M | 455.3K | 0.6% | ▼−5.3% Reduced · −26K sh | |
| 21 | Ishares TR NEW YORK MUN ETF | $24.5M | 461.0K | 0.6% | ▲+5.9% Added · +26K sh | |
| 22 | Ishares TR NATIONAL MUN ETF | $22.9M | 215.4K | 0.6% | ▲+11% Added · +21K sh | |
| 23 | SPDR Series Trust STATE STREET SPD | $21.4M | 377.6K | 0.5% | ▼−5.1% Reduced · −20K sh | |
| 24 | Ishares TR SHRT NAT MUN ETF | $18.5M | 173.8K | 0.5% | ▼−0.7% Reduced · −1K sh | |
| 25 | Dimensional ETF Trust INTL SMALL CAP E | $18.4M | 545.3K | 0.5% | ▲+1.4% Added · +8K sh | |
| 26 | Schwab Strategic TR SHT TM US TRES | $18.3M | 752.2K | 0.5% | ▲+22% Added · +133K sh | |
| 27 | Ishares TR ISHS 1-5YR INVS | $17.9M | 339.7K | 0.5% | ▲+20% Added · +56K sh | |
| 28 | Goldman Sachs ETF TR ACCES TREASURY | $16.3M | 162.7K | 0.4% | ▲+42% Added · +48K sh | |
| 29 | Dimensional ETF Trust EMERGING MKTS VA | $16.0M | 447.8K | 0.4% | ▲+1.9% Added · +8K sh | |
| 30 | Vanguard Index FDS LARGE CAP ETF | $14.4M | 48.3K | 0.4% | ▼−0.3% Reduced · −141 sh | |
| 31 | Ishares TR S&P 500 VAL ETF | $14.0M | 66.1K | 0.4% | ▼−5.9% Reduced · −4K sh | |
| 32 | Ishares TR ESG AW MSCI EAFE | $11.8M | 123.5K | 0.3% | ▼−6.8% Reduced · −9K sh | |
| 33 | Ishares TR EAFE SML CP ETF | $11.2M | 143.1K | 0.3% | ▼−2.2% Reduced · −3K sh | |
| 34 | Ishares TR 0-5 YR TIPS ETF | $10.9M | 105.6K | 0.3% | ▲+1.4% Added · +1K sh | |
| 35 | SPDR Series Trust STATE STREET SPD | $10.5M | 137.5K | 0.3% | ▲+15% Added · +18K sh | |
| 36 | Ishares TR 0-5YR HI YL CP | $9.6M | 228.0K | 0.2% | ▲+50% Added · +76K sh | |
| 37 | SPDR Series Trust STATE STREET SPD | $9.4M | 110.4K | 0.2% | ▼−4.7% Reduced · −5K sh | |
| 38 | Apple Inc COM | $9.2M | 36.2K | 0.2% | ▲+19% Added · +6K sh | |
| 39 | Vanguard Index FDS MCAP VL IDXVIP | $8.7M | 47.0K | 0.2% | ▼−1.2% Reduced · −581 sh | |
| 40 | Ishares TR RUS 1000 GRW ETF | $7.9M | 18.4K | 0.2% | —Held | |
| 41 | Microsoft Corp COM | $7.5M | 20.3K | 0.2% | ▲+62% Added · +8K sh | |
| 42 | Ishares TR MBS ETF | $7.2M | 75.5K | 0.2% | ▲+1.1% Added · +840 sh | |
| 43 | Ishares TR FLTG RATE NT ETF | $7.1M | 138.5K | 0.2% | ▲+60% Added · +52K sh | |
| 44 | Ishares TR ESG AWARE MSCI | $6.7M | 142.3K | 0.2% | ▼−4.0% Reduced · −6K sh | |
| 45 | Ishares TR MICRO-CAP ETF | $6.7M | 41.8K | 0.2% | ▼−3.8% Reduced · −2K sh | |
| 46 | Vanguard Scottsdale FDS VNG RUS1000IDX | $6.6M | 22.3K | 0.2% | ▲+13% Added · +3K sh | |
| 47 | SPDR Series Trust STATE STRET SPDR | $5.7M | 297.8K | 0.1% | ▼−5.3% Reduced · −17K sh | |
| 48 | Ishares Inc ESG AWR MSCI EM | $5.5M | 121.4K | 0.1% | ▼−7.0% Reduced · −9K sh | |
| 49 | Ishares TR 0-3 MNTH TREASRY | $5.4M | 54.1K | 0.1% | ▼−16% Reduced · −10K sh | |
| 50 | Schwab Strategic TR FUNDAMENTAL INTL | $5.4M | 110.1K | 0.1% | ▼−12% Reduced · −15K 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 13, 2026 | 243 | $3.9B | 13F-HR |
| Q4 2025 | Dec 31, 2025 | Jan 28, 2026 | 203 | $3.9B | 13F-HR |
| Q3 2025 | Sep 30, 2025 | Oct 29, 2025 | 202 | $3.7B | 13F-HR |
| Q2 2025 | Jun 30, 2025 | Jul 9, 2025 | 193 | $3.5B | 13F-HR |
| Q1 2025 | Mar 31, 2025 | May 12, 2025 | 191 | $3.2B | 13F-HR |
| Q4 2024 | Dec 31, 2024 | Feb 6, 2025 | 191 | $3.2B | 13F-HR |
| Q3 2024 | Sep 30, 2024 | Nov 12, 2024 | 188 | $3.2B | 13F-HR |
| Q2 2024 | Jun 30, 2024 | Aug 13, 2024 | 187 | $3.1B | 13F-HR |
| Q1 2024 | Mar 31, 2024 | May 10, 2024 | 185 | $3.0B | 13F-HR |
| Q4 2023 | Dec 31, 2023 | Feb 2, 2024 | 176 | $2.9B | 13F-HR |
| Q3 2023 | Sep 30, 2023 | Nov 14, 2023 | 170 | $2.6B | 13F-HR |
| Q2 2023 | Jun 30, 2023 | Aug 9, 2023 | 164 | $2.8B | 13F-HR |
| Q1 2023 | Mar 31, 2023 | Apr 24, 2023 | 159 | $2.7B | 13F-HR |
| Q4 2022 | Dec 31, 2022 | Jan 26, 2023 | 163 | $2.6B | 13F-HR |
| Q3 2022 | Sep 30, 2022 | Nov 14, 2022 | 148 | $2.4B | 13F-HR |
| Q2 2022 | Jun 30, 2022 | Aug 15, 2022 | 142 | $2.6B | 13F-HR |
| Q1 2022 | Mar 31, 2022 | May 16, 2022 | 143 | $3.0B | 13F-HR |
| Q4 2021 | Dec 31, 2021 | Feb 14, 2022 | 141 | $3.0B | 13F-HR |
| Q3 2021 | Sep 30, 2021 | Nov 15, 2021 | 134 | $2.8B | 13F-HR |
| Q2 2021 | Jun 30, 2021 | Aug 16, 2021 | 135 | $2.8B | 13F-HR |
| Q1 2021 | Mar 31, 2021 | May 17, 2021 | 127 | $2.6B | 13F-HR |
| Q4 2020 | Dec 31, 2020 | Feb 10, 2021 | 126 | $2.5B | 13F-HR |
| Q3 2020 | Sep 30, 2020 | Nov 16, 2020 | 123 | $2.2B | 13F-HR |
| Q2 2020 | Jun 30, 2020 | Aug 14, 2020 | 121 | $2.1B | 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.