Gulfstream Capital

13F portfolio / Investment manager

Linonia

The firm is based in New York, NY, according to its SEC filings.

Its earliest 13F holdings report on SEC EDGAR was filed in February 2024.

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
$5.6B
Positions
12
Est. 1-yearEstimate
—SPY +15.7%
Est. 3-year, annualizedEstimate
—SPY +22.8%

As of Jun 30, 2026 · filed Aug 14, 2026

Holdings

1 new · 1 added · 6 trimmed · 4 unchanged · 3 sold out

1MELI on Yahoo Finance (opens in a new tab)Mercadolibre IncCOM16.8%$940M553,788Added +325.1%$1759.80$1819.99+3.4%
2GWRE on Yahoo Finance (opens in a new tab)Guidewire Software IncCOM15.2%$853M6,933,483Trimmed -9.4%$160.17*$167.10+4.3%
3VEEV on Yahoo Finance (opens in a new tab)Veeva Sys IncCL A COM14.0%$783M4,409,598Trimmed -10.5%$217.81*$307.24+41.1%
4RBLX on Yahoo Finance (opens in a new tab)Roblox CorpCL A11.7%$655M12,053,186New$49.75$49.38-0.7%
5NYT on Yahoo Finance (opens in a new tab)New York Times Co Mtn BeCL A11.3%$632M9,034,044Unchanged$74.93$67.80-9.5%
6LLYVK on Yahoo Finance (opens in a new tab)Liberty Live Holdings IncCOM SHS SER C11.1%$621M5,877,204Trimmed -5.1%$86.17$97.36+13.0%
7SGI on Yahoo Finance (opens in a new tab)Somnigroup International IncCOM9.3%$519M6,624,644Trimmed -24.6%$52.60*$62.97+19.7%
8LLYVA on Yahoo Finance (opens in a new tab)Liberty Live Holdings IncCOM SER A4.3%$241M2,376,439Trimmed -4.9%$83.24$94.27+13.3%
9FWONA on Yahoo Finance (opens in a new tab)Liberty Media Corp DelCOM LBTY ONE S A3.3%$185M2,118,059Unchanged$66.64*$82.93+24.4%
10LYV on Yahoo Finance (opens in a new tab)Live Nation Entertainment InCOM2.2%$123M673,090Unchanged$136.52$169.09+23.9%
11FWONK on Yahoo Finance (opens in a new tab)Liberty Media Corp DelCOM LBTY ONE S C0.6%$31M326,943Trimmed -88.1%$81.87*$90.81+10.9%
12TDG on Yahoo Finance (opens in a new tab)Transdigm Group IncCOM0.3%$15M11,022Unchanged$802.78*$1141.26+42.2%

Sold out since Q1 2026

Estimated, from reported holdings

Quarter by quarter

Q1 2024: est. holdings +14.4%Q1 2024: S&P 500 (SPY) +10.4%Q1 ’24Q2 2024: est. holdings -1.9%Q2 2024: S&P 500 (SPY) +4.4%Q2 ’24Q1 2026: est. holdings -11.5%Q1 2026: S&P 500 (SPY) -4.4%Q1 ’26Q2 2026: est. holdings -3.3%Q2 2026: S&P 500 (SPY) +15.1%Q2 ’26Q3 2026: est. holdings +4.3%Q3 2026: S&P 500 (SPY) +2.4%Q3 ’26
Estimated holdings return S&P 500 (SPY), by quarter

High-conviction buys (new positions at 3% or more of the portfolio) since Q4 2023: 9. Of 5 with six months of history, 0.0% beat the S&P 500 from the filing date.

Source: SEC Form 13F-HR 0001985479-26-000018, 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 Q4 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.