Watsco

WSO and WSO.B • NYSE

Watsco is a industrial - distribution company in the industrials sector on NYSE, led by A.J. Nahmad, with a market cap of $14.4B. As of Q3 2025, 89% of shares are held by 763 institutional investors, with BlackRock, Inc. as the largest holder at 9.23%.

Chief Executive OfficerA.J. Nahmad

Market Cap$14.4B

Industrial - Distribution

Industrials

Employees7.4K

Websitewatsco.com

Country

United States of America

Overview

Overview of institutional ownership in WSO and WSO.B as of Q3 2025 with a market cap of $16.4B

All Institutions

Institutions: 763
Value Held: $14.5B
Shares Held: 36.0M
Avg Position: $19.1M
Median Position: $773.8K

Hedge Funds

Hedge Funds: 48
Value Held: $463.8M
Shares Held: 1.1M
Avg Position: $9.7M
Median Position: $2.3M

Ownership Breakdown

Institutional (non-HF)

85.91%

$14.1B

Hedge Funds

2.83%

$463.8M

Retail & Other

11.26%

$1.8B

Based on market cap of $16.4B as of Q3 2025. Institutional (non-HF) excludes hedge funds to avoid double counting.

Biggest Investors

Institutions with the largest positions in WSO and WSO.B as of Q3 2025

Institution	Key People	Position Value	Ownership	Owned Since	Total AUM (Long)
B BlackRock, Inc. Institution	-	$1.5B 0.03% of portfolio	9.23% 3.7M shares	≤ Q2 2013 Held for 12y 5m+	$5.67T
VANGUARD GROUP INC Institution	Salim Ramji CEO	$1.4B 0.02% of portfolio	8.76% 3.6M shares	≤ Q2 2013 Held for 12y 5m+	$6.69T
FMR LLC Institution	-	$1.2B 0.06% of portfolio	7.40% 3.0M shares	≤ Q2 2013 Held for 12y 5m+	$1.92T
C Capital International Investors Institution	-	$924.2M 0.15% of portfolio	5.64% 2.3M shares	Q2 2025 Held for 5 months	$615.90B
KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC Long Only Manager	George Robert Aylward CEO	$625.2M 1.52% of portfolio	3.81% 1.5M shares	Q1 2016 Held for 9y 8m	$41.0B
SCHWAB CHARLES INVESTMENT MANAGEMENT INC Long Only Manager	Omar Aguilar Chavez CEO	$611.5M 0.10% of portfolio	3.73% 1.5M shares	≤ Q2 2013 Held for 12y 5m+	$620.51B
STATE STREET CORP Institution	Ronald P. O'Hanley CEO	$500.6M 0.02% of portfolio	3.05% 1.2M shares	≤ Q2 2013 Held for 12y 5m+	$2.88T
B BAILLIE GIFFORD & CO Institution	-	$381.7M 0.28% of portfolio	2.33% 944.1K shares	≤ Q2 2013 Held for 12y 5m+	$134.80B
B BLAIR WILLIAM & CO/IL Institution	-	$323.4M 0.86% of portfolio	1.97% 800.0K shares	≤ Q2 2013 Held for 12y 5m+	$37.6B
C Capital World Investors Institution	-	$256.3M 0.04% of portfolio	1.56% 634.0K shares	≤ Q2 2013 Held for 12y 5m+	$730.00B

Net Capital Flow

Institutional buying and selling activity for WSO and WSO.B in Q3 2025

Traded: +$679.1M
Buyers: 333
Sellers: 387
Total Bought: +$1.5B
Total Sold: −$794.4M
Avg Position: $17.0M

Biggest Buyers

Institution	Net Bought	Current Position
C Capital International Investors Institution	+$814.4M +2.0M shares	$924.2M 2.3M shares
TWO SIGMA INVESTMENTS LLC Hedge Fund•Multi-Strategy	+$69.4M +171.7K shares	$70.0M 173.1K shares
RENAISSANCE TECHNOLOGIES LLC Hedge Fund•Quant	+$36.2M +89.5K shares	$55.9M 138.2K shares
V Vantage Investment Partners, LLC Institution	+$28.5M +70.4K shares	$39.5M 97.7K shares
A Alyeska Investment Group, L.P. Hedge Fund•Multi-Strategy	+$26.8M +66.4K shares	$26.8M 66.4K shares
G GREAT WEST LIFE ASSURANCE CO /CAN/ Institution	+$25.6M +63.2K shares	$55.6M 137.4K shares
TWO SIGMA ADVISERS, LLC Hedge Fund•Multi-Strategy	+$22.2M +55.0K shares	$24.1M 59.7K shares
Broad Bay Capital Management, LP Hedge Fund•Long/Short	+$20.6M +50.9K shares	$20.6M 50.9K shares
Hamlin Capital Management, LLC Long Only Manager	+$19.3M +47.6K shares	$163.9M 405.5K shares
B BROWN BROTHERS HARRIMAN & CO RIA/Wealth	+$18.3M +45.2K shares	$80.8M 199.7K shares

Biggest Sellers

Institution	Net Sold	Current Position
BARCLAYS PLC Institution	−$56.4M −139.5K shares	$22.5M 55.7K shares
LORD, ABBETT & CO. LLC Long Only Manager	−$55.4M −137.0K shares	$24.9M 61.5K shares
FMR LLC Institution	−$44.9M −111.1K shares	$1.2B 3.0M shares
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	−$42.6M −105.3K shares	$43.3M 107.2K shares
Allspring Global Investments Holdings, LLC Long Only Manager	−$30.9M −67.8K shares	Sold Off 0 shares
CITIGROUP INC Institution	−$26.6M −65.8K shares	$11.9M 29.5K shares
T TWINBEECH CAPITAL LP Hedge Fund•Quant	−$25.3M −57.3K shares	Sold Off 0 shares
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy	−$21.9M −49.5K shares	Sold Off 0 shares
L Laurel Wealth Advisors LLC RIA/Wealth	−$21.6M −49.0K shares	Sold Off 0 shares
TUDOR INVESTMENT CORP ET AL Hedge Fund•Multi-Strategy	−$17.7M −43.7K shares	$3.3M 8.1K shares

Entry and Exit Activity

Institutions that initiated new positions or completely exited WSO and WSO.B in Q3 2025

New Positions: 33
New Value: $42.6M
Exited Positions: 93
Exited Value: $209.2M

New Positions

Institution	Position Value
Broad Bay Capital Management, LP Hedge Fund•Long/Short	$20.6M 50.9K shares
CAPITAL INTERNATIONAL INC /CA/ Long Only Manager	$7.4M 18.3K shares
N NICOLA WEALTH MANAGEMENT LTD. RIA/Wealth	$6.9M 17.0K shares
D Delta Global Management LP Hedge Fund•Market Neutral	$2.6M 6.4K shares
Union Bankshares Corp Institution	$1.4M 3.4K shares
SUMMIT WEALTH GROUP LLC / CO RIA/Wealth	$668.9K 1.8K shares
Drucker Wealth 3.0, LLC RIA/Wealth	$486.4K 1.2K shares
C Capital Group Private Client Services, Inc. RIA/Wealth	$463.3K 1.1K shares
Baker Ellis Asset Management LLC RIA/Wealth	$428.2K 1.1K shares
Texas Yale Capital Corp. RIA/Wealth	$360.2K 891.0 shares

Exited Positions

Institution	Previous Position
Allspring Global Investments Holdings, LLC Long Only Manager	$30.9M 67.8K shares
T TWINBEECH CAPITAL LP Hedge Fund•Quant	$25.3M 57.3K shares
WORLDQUANT MILLENNIUM QUANTITATIVE STRATEGIES LLC Hedge Fund•Multi-Strategy	$21.9M 49.5K shares
L Laurel Wealth Advisors LLC RIA/Wealth	$21.6M 49.0K shares
JENNISON ASSOCIATES LLC Long Only Manager	$16.2M 36.8K shares
Q Qube Research & Technologies Ltd Institution	$10.0M 22.7K shares
T TEXAS PERMANENT SCHOOL FUND Institution	$9.4M 21.4K shares
Marshall Wace LLP Institution	$7.5M 17.0K shares
TrimTabs Asset Management, LLC Long Only Manager	$7.3M 16.5K shares
A Achmea Investment Management B.V. Institution	$6.9M 15.7K shares

Options Activity

Institutions with the largest Call and Put options positions in WSO and WSO.B as of Q3 2025

Call Positions: 9
Call Value: $23.8M
Put Positions: 9
Put Value: $28.8M

Call Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$14.6M 362.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$3.2M 79.0 contracts
D D. E. Shaw & Co., Inc. Institution	$2.1M 52.0 contracts
J JANE STREET GROUP, LLC Institution	$1.1M 26.0 contracts
W WOLVERINE TRADING, LLC Institution	$919.0K 23.0 contracts
C Cubist Systematic Strategies, LLC Institution	$889.5K 22.0 contracts
BANK OF AMERICA CORP /DE/ Institution	$404.3K 10.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$283.0K 7.0 contracts
Walleye Trading LLC RIA/Wealth	$283.0K 7.0 contracts

Put Positions

Institution	Position Value
SUSQUEHANNA INTERNATIONAL GROUP, LLP Private Equity	$20.3M 501.0 contracts
CITADEL ADVISORS LLC Hedge Fund•Multi-Strategy	$5.0M 124.0 contracts
Hestia Capital Management, LLC Hedge Fund•Long/Short	$1.3M 31.0 contracts
J JANE STREET GROUP, LLC Institution	$889.5K 22.0 contracts
W WOLVERINE TRADING, LLC Institution	$519.4K 13.0 contracts
C Cubist Systematic Strategies, LLC Institution	$363.9K 9.0 contracts
Walleye Trading Advisors, LLC Hedge Fund•Multi-Strategy	$283.0K 7.0 contracts
Walleye Trading LLC RIA/Wealth	$202.2K 5.0 contracts
BANK OF AMERICA CORP /DE/ Institution	- - contracts

Most Committed Institutions

Institutions with WSO and WSO.B as the highest % of their portfolio as of Q3 2025

Institution	Key People	Portfolio Weight	Ownership	Owned Since	Total AUM (Long)
C CALEDONIA INVESTMENTS PLC Institution	-	8.73% $88.7M	0.54% 219.4K shares	Q1 2017 Held for 8y 8m	$1.0B
P Patrick Mauro Investment Advisor, INC. RIA/Wealth	Patrick John Mauro CEO	6.52% $12.3M	0.07% 30.3K shares	Q3 2022 Held for 3y 2m	$188.2M
Crown Oak Advisors, LLC RIA/Wealth	Michelle Ann Myhre Managing Partner	5.00% $10.6M	0.06% 23.9K shares	Q4 2023 Held for 1y 11m	$211.5M
Hamlin Capital Management, LLC Long Only Manager	Mark (Nmn) Stitzer CEO	3.73% $163.9M	1.00% 405.5K shares	Q1 2023 Held for 2y 8m	$4.4B
G GRACE & WHITE INC /NY RIA/Wealth	Marc Emil Ravitz President	3.28% $15.8M	0.10% 39.0K shares	≤ Q2 2013 Held for 12y 5m+	$481.2M
Kensington Investment Counsel, LLC RIA/Wealth	Jeffrey G. Wimbish Managing Partner	3.16% $7.8M	0.05% 19.2K shares	Q3 2022 Held for 3y 2m	$245.5M
Pembroke Management, LTD Long Only Manager	Nicolas Gilles Chevalier CEO	2.82% $28.4M	0.17% 70.2K shares	Q1 2020 Held for 5y 8m	$1.0B
P Prospect Capital Advisors, LLC Hedge Fund•Long/Short	Daniel William Mendoza Managing Partner	2.73% $5.3M	0.03% 13.0K shares	Q2 2022 Held for 3y 5m	$193.0M
V Vantage Investment Partners, LLC Institution	-	2.70% $39.5M	0.24% 97.7K shares	Q1 2024 Held for 1y 8m	$1.5B
D DUDLEY & SHANLEY, LLC RIA/Wealth	Henry Claypool Dudley Chairman	2.56% $15.9M	0.10% 39.4K shares	Q1 2023 Held for 2y 8m	$621.5M

Hedge Fund Spotlight

Discover hedge funds investing in WSO and WSO.B

CITADEL ADVISORS LLC

Hedge Fund • Multi-Strategy

Portfolio ManagerKenneth Cordele Griffin

Portfolio Value: $122.08B
Positions: 5,531
Last Reported: Q3 2025

Sector Allocation

Position in Watsco

WSO and WSO.B

Market Value: $1.2B
Shares Held: 4.1M
Portfolio Weight: 1.46%
Owned Since: 2013-Q2

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