Reported book
$392.7M
13F equity value
Institutional filer · SEC 13F · Q3 2025
EQUITEC PROPRIETARY MARKETS, LLC
The reported 13F portfolio of EQUITEC PROPRIETARY MARKETS, LLC (CIK 1143261) - top holdings, how concentrated the book is, and what changed last quarter.
- $392.7M
- Reported book
- 53
- Positions
- #119
- of 360 filers
The verdict
EQUITEC PROPRIETARY MARKETS, LLC runs a mid-sized institutional book - $392.7M across 53 reported positions as of Q3 2025, a concentrated portfolio led by a few core positions.
- $392.7M
- reported 13F value
- 53
- disclosed positions
- 63.8%
- in SPDR S&P 500 ETF TR
- #119
- of 360 filers
Reflects long US-equity positions reported to the SEC as of Q3 2025; 13F excludes shorts, cash, non-US and most derivatives, so this is not total AUM.
How to read this page
This page reconstructs an institutional manager's reported equity portfolio from its quarterly SEC Form 13F-HR filings. Any investment manager with at least $100 million in qualifying US-listed equity assets must file a 13F with the Securities and Exchange Commission within 45 days of each quarter-end, disclosing the long positions it held on the last day of that quarter. The "reported book" shown here is the total market value of those disclosed positions, it is not the firm's total assets under management, because 13F covers only long US-listed equities and a defined set of options and convertibles. Short positions, cash, private holdings, sovereign debt, most fixed income, non-US equities, and derivatives are all excluded by rule, so a manager's true economic exposure can differ materially from what appears here. "Positions" counts the distinct securities disclosed; "% of book" shows how much weight each holding carries. Treat these figures as a quarter-lagged snapshot for understanding how a manager is positioned - not as live holdings or investment advice. Each line traces back to a specific filing on SEC EDGAR. This page is provided for informational purposes only and is not financial advice, consult a licensed financial advisor before making investment decisions.
Positions
53
Disclosed securities
Top-5 weight
97%
Of reported book
Largest position
63.8%
SPDR S&P 500 ETF T
Concentrated book
Top-5 position weight
Top-5 position weight 96.9%
The five largest positions make up about 97% of EQUITEC PROPRIETARY MARKETS, LLC's reported book as of Q3 2025.
Top Reported Holdings
| # | Security | Value | % of book |
|---|---|---|---|
| 1 | SPDR S&P 500 ETF TR | $250.5M | 63.8% |
| 2 | NETFLIX INC | $119.9M | 30.5% |
| 3 | KELLANOVA | $4.2M | 1.1% |
| 4 | PARAMOUNT SKYDANCE CORP | $3.7M | 0.9% |
| 5 | ELECTRONIC ARTS INC | $2.2M | 0.6% |
| 6 | 89BIO INC | $1.9M | 0.5% |
| 7 | KAYNE ANDERSON BDC INC | $1.6M | 0.4% |
| 8 | SIRIUSXM HOLDINGS INC | $1.6M | 0.4% |
| 9 | WARNER BROS DISCOVERY INC | $1.2M | 0.3% |
| 10 | TESLA INC | $934K | 0.2% |
| 11 | VERONA PHARMA PLC | $875K | 0.2% |
| 12 | ARIS WATER SOLUTIONS INC | $673K | 0.2% |
| 13 | HERC HLDGS INC | $583K | 0.1% |
| 14 | SPIRIT AEROSYSTEMS HLDGS INC | $510K | 0.1% |
| 15 | WESTERN MIDSTREAM PARTNERS L | $381K | 0.1% |
| 16 | ZIMVIE INC | $341K | 0.1% |
| 17 | ROCKET COS INC | $275K | 0.1% |
| 18 | GAMESTOP CORP NEW | $235K | 0.1% |
| 19 | CADIZ INC | $155K | 0.0% |
| 20 | BIGBEAR AI HLDGS INC | $132K | 0.0% |
| 21 | D-WAVE QUANTUM INC | $129K | 0.0% |
| 22 | WOLFSPEED INC | $114K | 0.0% |
| 23 | COMPASS INC | $80K | 0.0% |
| 24 | PHARMACYTE BIOTECH INC | $80K | 0.0% |
| 25 | ISHARES TR | $71K | 0.0% |
Latest Quarter Trades · Q3 2025
New positions (52)
SPDR S&P 500 ETF TR $250.5M
NETFLIX INC $119.9M
KELLANOVA $4.2M
PARAMOUNT SKYDANCE CORP $3.7M
ELECTRONIC ARTS INC $2.2M
89BIO INC $1.9M
Reading EQUITEC PROPRIETARY MARKETS, LLC's book
A few core positions drive most of this book.
- Open any holding to see who else owns it and how concentrated that stock is. Browse stocks
- Compare this manager against the largest 13F filers by book size. Top funds by AUM
- Remember 13F shows long positions only, not total AUM, shorts or non-US holdings. 13F limitations
Informational only, not investment advice. 13F is a 45-day-lagged quarterly snapshot; positions may have changed since the filing date.
Frequently Asked Questions
How big is EQUITEC PROPRIETARY MARKETS, LLC's 13F portfolio?▼
EQUITEC PROPRIETARY MARKETS, LLC reports $392.7M of long US-equity positions across 53 securities as of Q3 2025. This reflects 13F-disclosed holdings only, it is not the firm's total assets under management.
What is EQUITEC PROPRIETARY MARKETS, LLC's largest position?▼
EQUITEC PROPRIETARY MARKETS, LLC's largest reported position is SPDR S&P 500 ETF TR at $250.5M, about 63.8% of its reported book as of Q3 2025.
What did EQUITEC PROPRIETARY MARKETS, LLC trade last quarter?▼
In its Q3 2025 filing, EQUITEC PROPRIETARY MARKETS, LLC opened 52 new positions. Each change is drawn from a line in the firm's 13F-HR filing and can be verified on SEC EDGAR.
Where does EQUITEC PROPRIETARY MARKETS, LLC's holdings data come from?▼
Every figure renders live from EQUITEC PROPRIETARY MARKETS, LLC's SEC Form 13F-HR filings in EDGAR, a mandatory quarterly disclosure of long US-listed equity positions, filed within 45 days of quarter-end.
Source: U.S. Securities and Exchange Commission (SEC) - EDGAR Form 13F-HR institutional holdings filings · Q3 2025 13F-HR discloses long US-listed equity positions of managers with $100M+ qualifying assets, filed within 45 days of period end. Reported value is not total AUM.