13F portfolio / Investment manager
Carronade Capital
Daniel Gropper (managing partner)
The firm is based in Darien, CT, according to its SEC filings.
Its earliest 13F holdings report on SEC EDGAR was filed in February 2022.
SEC Form ADV lists Daniel Gropper as managing partner.
The 13F shows long US-listed stock and option positions only. It leaves out short positions, cash, bonds and most non-US holdings.
- Reported 13F value
- $5.8B
- Positions
- 23
- Est. 1-yearEstimate
- +27.4%SPY +15.7%
- Est. 3-year, annualizedEstimate
- —SPY +22.8%
As of Jun 30, 2026 · filed Aug 14, 2026
Holdings
5 new · 15 added · 1 trimmed · 2 unchanged · 7 sold out
| 1 | SPY on Yahoo Finance (opens in a new tab) | State Str SPDR S&P 500 ETF TTR UNIT | 58.2% | $3.4B | 4,500,000 | New | $721.60 | $762.97 | +5.7% |
| 2 | VSAT on Yahoo Finance (opens in a new tab) | Viasat IncCOM | 8.4% | $485M | 5,399,976 | Added +67.2% | $42.76 | $59.08 | +38.2% |
| 3 | TLN on Yahoo Finance (opens in a new tab) | Talen Energy CorpCOM | 5.3% | $306M | 795,514 | Added +23.4% | $272.90 | $354.11 | +29.8% |
| 4 | CMCSA on Yahoo Finance (opens in a new tab) | Comcast Corp NewCL A | 3.5% | $204M | 8,299,000 | New | $25.07 | $21.95 | -12.4% |
| 5 | TDS on Yahoo Finance (opens in a new tab) | Telephone & Data Sys IncCOM NEW | 3.4% | $197M | 5,319,175 | Added +15.0% | $36.22 | $34.13 | -5.8% |
| 6 | CTRI on Yahoo Finance (opens in a new tab) | Centuri Holdings IncCOM SHS | 2.9% | $167M | 5,516,741 | Added +20.9% | $23.82 | $19.84 | -16.7% |
| 7 | BKD on Yahoo Finance (opens in a new tab) | Brookdale Sr Living IncCOM | 2.8% | $159M | 9,878,207 | Added +15.0% | $8.46 | $9.98 | +17.9% |
| 8 | VISN on Yahoo Finance (opens in a new tab) | Vistance Networks IncCOM | 2.5% | $142M | 11,106,021 | Added +45.2% | $5.04 | $5.89 | +16.7% |
| 9 | ACHC on Yahoo Finance (opens in a new tab) | Acadia Healthcare Company InCOM | 2.4% | $141M | 4,762,635 | Added +103.8% | $21.96 | $30.12 | +37.2% |
| 10 | — | Sphere Entertainment CoNOTE 3.500%12/0 | 1.8% | $104M | 21,384,000 | Unchanged | — | — | — |
| 11 | — | Echostar CorpNOTE 3.875%11/3 | 1.5% | $86M | 27,638,496 | Added +8.2% | — | — | — |
| 12 | VZ on Yahoo Finance (opens in a new tab) | Verizon Communications IncCOM | 1.5% | $86M | 2,021,000 | New | $45.35 | $44.88 | -1.1% |
| 13 | ECHO on Yahoo Finance (opens in a new tab) | Echostar CorpCL A | 1.2% | $71M | 697,709 | Added +19.7% | $58.81 | $85.36 | +45.1% |
| 14 | DHC on Yahoo Finance (opens in a new tab) | Diversified Healthcare TrCOM SH BEN INT | 1.0% | $57M | 6,139,329 | Added +16.5% | $4.38 | $7.57 | +73.0% |
| 15 | BNO on Yahoo Finance (opens in a new tab) | United Sts Brent Oil Fd LPUNIT | 1.0% | $55M | 1,350,365 | New | $51.00 | $66.99 | +31.4% |
| 16 | CNNE on Yahoo Finance (opens in a new tab) | Cannae Hldgs IncCOM | 0.8% | $47M | 3,230,148 | Trimmed -1.0% | $18.02 | $15.99 | -11.3% |
| 17 | UHS on Yahoo Finance (opens in a new tab) | Universal Hlth Svcs IncCL B | 0.5% | $30M | 200,000 | New | $162.17 | $184.24 | +13.6% |
| 18 | SPHR on Yahoo Finance (opens in a new tab) | Sphere Entertainment CoCL A | 0.5% | $27M | 157,326 | Added +244.3% | $129.33 | $103.46 | -20.0% |
| 19 | CORZ on Yahoo Finance (opens in a new tab) | Core Scientific Inc NewCOM | 0.4% | $25M | 992,827 | Added +882.0% | $22.92 | $13.52 | -41.0% |
| 20 | VAL/WS on Yahoo Finance (opens in a new tab) | Valaris Ltd*W EXP 04/29/202 | 0.2% | $10M | 1,184,013 | Added +17.7% | — | — | — |
| 21 | WW on Yahoo Finance (opens in a new tab) | WW Intl IncCOM NEW | 0.1% | $7M | 467,583 | Added +2.4% | $33.71 | $13.40 | -60.2% |
| 22 | CYH on Yahoo Finance (opens in a new tab) | Community Health Sys Inc NewCOM | 0.1% | $5M | 1,565,847 | Added +18.5% | $3.22 | $2.89 | -10.1% |
| 23 | — | Brookdale Sr Living IncNOTE 2.000%10/1 | 0.1% | $4M | 2,000,000 | Unchanged | — | — | — |
Sold out since Q1 2026
- OPTU on Yahoo Finance (opens in a new tab)Optimum Communications Inc$9M at Q1 2026
- CPT on Yahoo Finance (opens in a new tab)Camden Ppty Tr$8M at Q1 2026
- VMRK on Yahoo Finance (opens in a new tab)Equity Residential$7M at Q1 2026
- UDR on Yahoo Finance (opens in a new tab)Udr Inc$7M at Q1 2026
- —Avalonbay Cmntys Inc$7M at Q1 2026
- ESS on Yahoo Finance (opens in a new tab)Essex Ppty Tr Inc$4M at Q1 2026
- MAA on Yahoo Finance (opens in a new tab)Mid-Amer Apt Cmntys Inc$4M at Q1 2026
Estimated, from reported holdings
Quarter by quarter
High-conviction buys (new positions at 3% or more of the portfolio) since Q3 2023: 14. Of 9 with six months of history, 77.8% beat the S&P 500 from the filing date.
Source: SEC Form 13F-HR 0001866872-26-000009, compared with the Q1 2026 report. 0 option rows are excluded from weights. Tickers map from CUSIP via OpenFIGI. Estimated returns weight each position’s next-quarter total return (Yahoo Finance adjusted closes) by its quarter-end value and assume no trades. Estimated cost averages daily adjusted closes in each quarter the share count rose, from Q3 2023 onward (* = held at the start of our data). Price is the latest close.
Important information
Form 13F data is delayed. Managers have up to 45 days after each calendar quarter to file, so holdings shown may have changed materially since the report date. 13F reports cover long positions in US-listed equities and certain other securities only; they exclude short positions, most non-US holdings, cash, bonds and private investments, and managers may request confidential treatment for some positions. Options rows are listed in filings but are not counted in the holdings and weights shown here.
Estimated holdings returns, estimated cost and high-conviction results are hypothetical calculations from quarter-end holdings and public prices, assuming no trades between reports. They are not the actual returns or costs of any fund or manager and do not reflect fees, trading, leverage, shorts or cash. Biographies are drawn from cited public sources. This page is for information only and is not individualized investment advice or a recommendation to buy or sell any security. Gulfstream Capital and its clients may hold positions in securities shown.