MarineMax is a specialty retail company in the consumer cyclical sector on NYSE, led by W. Brett McGill, with a market cap of $550.9M. As of Q3 2025, 97% of shares are held by 170 institutional investors, with BlackRock, Inc. as the largest holder at 13.76%.
Overview of institutional ownership in HZO as of Q3 2025 with a market cap of $543.7M
Based on market cap of $543.7M as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.
Institutions with the largest positions in HZO as of Q3 2025
| Institution | Position Value |
|---|---|
B BlackRock, Inc. Institution | $74.8M 0.00% of portfolio |
A AMERICAN CENTURY COMPANIES INC Institution | $59.4M 0.03% of portfolio |
VANGUARD GROUP INC Institution | $37.1M 0.00% of portfolio |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | $31.6M 0.01% of portfolio |
STATE STREET CORP Institution | $21.7M 0.00% of portfolio |
LEVIN CAPITAL STRATEGIES, L.P. Hedge Fund•Multi-Strategy | $18.1M 1.67% of portfolio |
Invesco Ltd. ETF Provider | $17.8M 0.00% of portfolio |
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds | $17.4M 0.45% of portfolio |
D Divisadero Street Capital Management, LP Hedge Fund•Long/Short | $16.6M 0.78% of portfolio |
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager | $12.2M 0.00% of portfolio |
Institutional buying and selling activity for HZO in Q3 2025
| Institution | Net Bought |
|---|---|
BOOTHBAY FUND MANAGEMENT, LLC Fund of Funds | +$17.4M +685.8K shares |
D Divisadero Street Capital Management, LP Hedge Fund•Long/Short | +$16.6M +656.2K shares |
GOLDMAN SACHS GROUP INC Institution | +$7.6M +301.4K shares |
GAGNON SECURITIES LLC RIA/Wealth | +$6.6M +261.3K shares |
CenterBook Partners LP Hedge Fund•Market Neutral | +$5.0M +197.3K shares |
G Gagnon Advisors, LLC Hedge Fund•Long/Short | +$3.8M +151.8K shares |
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy | +$3.1M +123.6K shares |
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager | +$2.7M +107.8K shares |
Portolan Capital Management, LLC Hedge Fund•Long/Short | +$2.1M +84.7K shares |
B BNP PARIBAS ARBITRAGE, SA Institution | +$1.7M +67.3K shares |
| Institution | Net Sold |
|---|---|
Broad Bay Capital Management, LP Hedge Fund•Long/Short | −$17.8M −704.2K shares |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | −$5.2M −205.0K shares |
PRIVATE MANAGEMENT GROUP INC RIA/Wealth | −$4.8M −187.8K shares |
Q Qube Research & Technologies Ltd Institution | −$2.7M −105.5K shares |
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant | −$2.7M −105.5K shares |
A AMERICAN CENTURY COMPANIES INC Institution | −$2.2M −88.5K shares |
Intrinsic Edge Capital Management LLC Hedge Fund•Multi-Strategy | −$1.8M −70.5K shares |
J Jump Financial, LLC Institution | −$1.6M −61.5K shares |
UBS Group AG Institution | −$1.5M −58.6K shares |
DIMENSIONAL FUND ADVISORS LP Long Only Manager | −$982.5K −38.8K shares |
Institutions that initiated new positions or completely exited HZO in Q3 2025
| Institution | Position Value |
|---|---|
GAGNON SECURITIES LLC RIA/Wealth | $6.6M 261.3K shares |
G Gagnon Advisors, LLC Hedge Fund•Long/Short | $3.8M 151.8K shares |
Round Rock Advisors, LLC RIA/Wealth | $1.0M 38.5K shares |
S Salomon & Ludwin, LLC Institution | $4.5K 159.0 shares |
Sontag Advisory, LLC RIA/Wealth | $3.0K 118.0 shares |
JPL Wealth Management, LLC RIA/Wealth | $2.8K 110.0 shares |
C Cedar Mountain Advisors, LLC RIA/Wealth | $1.7K 69.0 shares |
O Optiver Holding B.V. Institution | $355.0 14.0 shares |
| Institution | Previous Position |
|---|---|
Q Qube Research & Technologies Ltd Institution | $2.7M 105.5K shares |
ALGERT COLDIRON INVESTORS LLC Hedge Fund•Quant | $2.7M 105.5K shares |
S Squarepoint Ops LLC Hedge Fund•Quant | $520.6K 20.7K shares |
Trexquant Investment LP Hedge Fund•Quant | $429.0K 17.1K shares |
C Campbell & CO Investment Adviser LLC Hedge Fund•Quant Macro | $392.4K 15.6K shares |
MILLENNIUM MANAGEMENT LLC Hedge Fund•Multi-Strategy | $352.2K 14.0K shares |
T TEXAS PERMANENT SCHOOL FUND Institution | $271.6K 10.8K shares |
Cascades Capital Asset Management, LLC RIA/Wealth | $113.8K 4.5K shares |
S Skopos Labs, Inc. RIA/Wealth | $12.0K 477.0 shares |
ATTICUS WEALTH MANAGEMENT, LLC RIA/Wealth | $3.1K 125.0 shares |
Institutions with the largest Call and Put options positions in HZO as of Q3 2025
| Institution | Position Value |
|---|---|
D D. E. Shaw & Co., Inc. Institution | $744.7K 294.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $663.6K 262.0 contracts |
Walleye Trading LLC RIA/Wealth | $362.2K 143.0 contracts |
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy | $283.7K 112.0 contracts |
J JANE STREET GROUP, LLC Institution | $278.6K 110.0 contracts |
| Institution | Position Value |
|---|---|
J JANE STREET GROUP, LLC Institution | $785.2K 310.0 contracts |
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy | $683.9K 270.0 contracts |
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity | $271.0K 107.0 contracts |
Walleye Trading LLC RIA/Wealth | $25.3K 10.0 contracts |
Institutions with HZO as the highest % of their portfolio as of Q3 2025
| Institution | Portfolio Weight |
|---|---|
G Gagnon Advisors, LLC Hedge Fund•Long/Short | 2.37% $3.8M |
A Acuitas Investments, LLC Fund of Funds | 2.14% $3.3M |
C CM Management, LLC Institution | 2.11% $2.5M |
S Soviero Asset Management, LP Hedge Fund•Long/Short | 1.88% $3.0M |
LEVIN CAPITAL STRATEGIES, L.P. Hedge Fund•Multi-Strategy | 1.67% $18.1M |
GAGNON SECURITIES LLC RIA/Wealth | 1.34% $6.6M |
D Divisadero Street Capital Management, LP Hedge Fund•Long/Short | 0.78% $16.6M |
L | 0.65% $3.4M |
Portolan Capital Management, LLC Hedge Fund•Long/Short | 0.54% $9.9M |
D De Lisle Partners LLP Institution | 0.51% $4.2M |
Discover hedge funds investing in HZO

| Top Holding | Sector | Market Value | Weight |
|---|---|---|---|
Specialty Retail Consumer Cyclical | $40.2M | 1.99% | |
Internet Content & Information Communication Services | $35.3M | 1.74% | |
Financial - Credit Services Financial Services | $34.0M | 1.68% |
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