Heffernan Advisory, Inc holds a concentrated book of 43 stocks worth $119.5M as of Q2 2026 (disclosed Jul 21, 2026, a ~45-day 13F lag). This quarter they opened Seagate Technology Holdings and trimmed Dimensional Core Fixed Inc. Their largest long position is Dimensional Core Fixed Inc at 41% of the equity book. Cloning the disclosed picks since 2026 would be +2% (+3.3%/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/1536230/holdings"
Use Arkolith to show HEFFERNAN ADVISORY, INC's latest holdings, largest changes, and filing provenance.
Growth of $10,000 cloning Heffernan Advisory, Inc's disclosed long 13F book, rebalanced on each filing date (so it reflects the ~45-day reporting lag, 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: concentrated book
Share of the disclosed book in its largest positions. A higher top-5 share means a more concentrated, higher-conviction portfolio.
5% 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 | Dimensional ETF Trust CORE FIXE IN ETF | $48.5M | 1.15M | 40.6% | ▼−1.9% Reduced · −23K sh | |
| 2 | Dimensional ETF Trust US COR EQU 2 ETF | $12.5M | 282.8K | 10.5% | ▲+2.7% Added · +7K sh | |
| 3 | Dimensional ETF Trust US COR EQU 1 ETF | $12.4M | 151.8K | 10.4% | ▲+2.7% Added · +4K sh | |
| 4 | Dimensional ETF Trust SHOR DUR FIX ETF | $7.7M | 161.8K | 6.5% | ▲+7.4% Added · +11K sh | |
| 5 | Dimensional ETF Trust INTL CORE EQUITY | $6.8M | 182.1K | 5.7% | ▲+2.8% Added · +5K sh | |
| 6 | Dimensional ETF Trust INTL COR FIX ETF | $5.2M | 97.1K | 4.4% | ▲+5.9% Added · +5K sh | |
| 7 | Legg Mason ETF Invt FRANKLIN US LOW | $3.9M | 89.0K | 3.3% | ▼−1.0% Reduced · −929 sh | |
| 8 | Dimensional ETF Trust EMERGING MKTS CO | $3.2M | 79.6K | 2.7% | ▲+2.4% Added · +2K sh | |
| 9 | Dimensional ETF Trust GLOBAL CR ETF | $2.6M | 48.0K | 2.2% | ▲+3.0% Added · +1K sh | |
| 10 | Etfis Ser TR I VIRTUS REAVES UT | $1.6M | 19.1K | 1.3% | ▼−4.7% Reduced · −940 sh | |
| 11 | Vanguard Index FDS TOTAL STK MKT | $1.4M | 3.7K | 1.1% | ▲+0.3% Added · +13 sh | |
| 12 | Dimensional ETF Trust NATL MUN BD ETF | $1.3M | 25.9K | 1.0% | ▲+4.1% Added · +1K sh | |
| 13 | Seagate Technology HLDNGS PL ORD SHS | $869K | 900 | 0.7% | ▲New New position | |
| 14 | Ishares TR IBONDS DEC 28 | $848K | 33.1K | 0.7% | —Held | |
| 15 | Ishares TR IBONDS DEC 27 | $841K | 33.1K | 0.7% | —Held | |
| 16 | Ishares TR IBONDS DEC 26 | $838K | 32.7K | 0.7% | —Held | |
| 17 | ALPS ETF TR ALERIAN MLP | $774K | 14.9K | 0.6% | ▼−5.1% Reduced · −808 sh | |
| 18 | Dimensional ETF Trust GLOBAL REAL EST | $657K | 22.7K | 0.5% | ▲+3.4% Added · +737 sh | |
| 19 | Mastercard Incorporated CL A | $562K | 1.1K | 0.5% | ▲+22% Added · +200 sh | |
| 20 | State STR SPDR S&P 500 ETF T TR UNIT | $508K | 680 | 0.4% | ▲New New position | |
| 21 | Vanguard World FD INF TECH ETF | $478K | 4.0K | 0.4% | ▲New New position | |
| 22 | Flex Ltd ORD | $405K | 2.5K | 0.3% | ▲New New position | |
| 23 | Apple Inc COM | $403K | 1.4K | 0.3% | ▲New New position | |
| 24 | Visa Inc COM CL A | $357K | 1.0K | 0.3% | ▲+40% Added · +300 sh | |
| 25 | Marvell Technology Inc COM | $356K | 1.2K | 0.3% | ▲New New position | |
| 26 | Dycom Inds Inc COM | $354K | 700 | 0.3% | ▲New New position | |
| 27 | Applied Matls Inc COM | $347K | 480 | 0.3% | ▲New New position | |
| 28 | Microsoft Corp COM | $285K | 764 | 0.2% | ▲+35% Added · +200 sh | |
| 29 | Dimensional ETF Trust US TARGETED VLU | $282K | 4.0K | 0.2% | ▲+0.3% Added · +11 sh | |
| 30 | Ishares TR RUSSELL 2000 ETF | $270K | 900 | 0.2% | ▲New New position | |
| 31 | Old Rep Intl Corp COM | $266K | 6.5K | 0.2% | —Held | |
| 32 | Camden Ppty TR SH BEN INT | $259K | 2.3K | 0.2% | ▲New New position | |
| 33 | Maxlinear Inc COM | $256K | 2.0K | 0.2% | ▲New New position | |
| 34 | Ishares TR RUS 1000 GRW ETF | $248K | 2.0K | 0.2% | ▲New New position | |
| 35 | Ciena Corp COM NEW | $245K | 500 | 0.2% | ▲New New position | |
| 36 | Micron Technology Inc COM | $231K | 200 | 0.2% | ▲New New position | |
| 37 | Vanguard World FD MEGA CAP VAL ETF | $229K | 1.4K | 0.2% | ▲+0.5% Added · +7 sh | |
| 38 | United Rentals Inc COM | $227K | 200 | 0.2% | ▲New New position | |
| 39 | Dimensional ETF Trust US CORE EQT MKT | $226K | 4.4K | 0.2% | ▲New New position | |
| 40 | Equity Residential SH BEN INT | $216K | 3.2K | 0.2% | ▲New New position | |
| 41 | Palo Alto Networks Inc COM | $205K | 600 | 0.2% | ▲New New position | |
| 42 | Alphabet Inc CAP STK CL C | $203K | 574 | 0.2% | ▲New New position | |
| 43 | Global Net Lease Inc COM NEW | $115K | 12.9K | 0.1% | —Held |
As-of date vs the date the SEC received each filing
Holdings from SEC EDGAR 13F-HR filings, updated quarterly ~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.