Summit Portfolio Management, LTD.
PERIOD 2026-Q1 · SOURCE: SEC EDGAR (PUBLIC)
Holdings as of the 2026-Q1 13F-HR filing. 13F is disclosed up to 45 days after quarter-end.
What a 13F does — and does not — show
These figures come from Form 13F, a quarterly filing that large US institutional managers must submit to the SEC. It is a useful window, but a partial and lagged one, so read it carefully:
- It is a snapshot, up to 45 days old. A 13F shows what a manager held on the last day of a quarter, filed up to 45 days later — the fund may have traded since.
- Long US-listed stocks only. It excludes short positions, cash, bonds, most derivatives, and non-US or private holdings, so it is not the fund’s whole portfolio.
- Reported 13F value is not assets under management. Every share and concentration figure below is a percentage of the reported 13F value only — not the firm’s total assets.
- It describes, it does not recommend. A large or long-held position is not an endorsement, and none of this is investment advice.
Concentration
Share of the largest positions we rank. Long US-listed equity positions as filed; percentages are of reported 13F value, which excludes shorts, cash, non-US and private holdings.
| Tier | Reported value | Share |
|---|---|---|
| Top position | $37M | 23.7% |
| Top 5 | $94M | 60.2% |
| Top 10 | $136M | 87.3% |
Top holdings
| # | Security | Shares | Reported value | % of value |
|---|---|---|---|---|
| 1 | AVUV AMERICAN CENTY ETF TR | 333,964 | $37M | 23.7% |
| 2 | AVDV AMERICAN CENTY ETF TR | 179,161 | $18M | 11.5% |
| 3 | AVLV AMERICAN CENTY ETF TR | 171,390 | $14M | 8.9% |
| 4 | AVUS AMERICAN CENTY ETF TR | 123,280 | $14M | 8.8% |
| 5 | FLOT ISHARES TR | 222,056 | $11M | 7.3% |
| 6 | AVDE AMERICAN CENTY ETF TR | 118,445 | $10M | 6.5% |
| 7 | VTIP VANGUARD MALVERN FDS | 200,799 | $10M | 6.5% |
| 8 | AVIV AMERICAN CENTY ETF TR | 111,290 | $8M | 5.4% |
| 9 | DFUV DIMENSIONAL ETF TRUST | 146,929 | $7M | 4.6% |
| 10 | AVES AMERICAN CENTY ETF TR | 109,000 | $7M | 4.2% |
| 11 | AVEM AMERICAN CENTY ETF TR | 48,625 | $4M | 2.5% |
| 12 | DFAC DIMENSIONAL ETF TRUST | 92,402 | $4M | 2.3% |
How this filer invests
Reproducible measures computed from the positions in this filer’s own 13F filings — not from any outside estimate.
How concentrated the book is
Across 24 reported positions. Shares are of reported 13F value (long US-listed equity), which is not the firm’s total assets. The concentration index (HHI) is the sum of each position’s squared weight — higher means a book concentrated in fewer names.
Frequently asked
What does Summit Portfolio Management, LTD. own?
Summit Portfolio Management, LTD. reported 24 long US-listed equity positions worth $155M in its 2026-Q1 13F filing. The largest positions and their reported values are listed above.
What changed in Summit Portfolio Management, LTD.'s portfolio last quarter?
The quarter-over-quarter section lists new positions, exits, and the largest adds and trims versus the prior filing, measured on reported value.
Where does this data come from?
Holdings are parsed from SEC Form 13F-HR filings on EDGAR (public filings). 13F is disclosed up to 45 days after quarter-end and reflects long US-listed equity positions only. Informational, not investment advice.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It is filed up to 45 days after quarter-end, so it is backward-looking — the manager may have traded since — and it covers long US-listed equities only, not short positions, cash, or private holdings. Reading a 13F tells you what a manager owned, not whether you should own it.