Watsco, Inc.
US ˙ NYSE ˙ US9426222009

SecurityWSO / Watsco, Inc.
InstitutionUBS Group AG
Latest Disclosed Ownership363,127 shares
Latest Disclosed Value $ 132,101,972
UBS Group AG ownership in WSO / Watsco, Inc.

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 363,127 shares of Watsco, Inc. (US:WSO) valued at $132,101,971 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 186,875 shares of Watsco, Inc.. This represents a change in shares of 94.32% during the quarter. The current value of the position is $134,015,651 USD.

UBS Group AG has a history of taking positions in derivatives of the underlying security (WSO) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

WSO / Watsco, Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-05 2026-03-31 13F WATSCO COM 942622200 363,127 176,252 94.32 132,102 109.79 0.0037
2026-01-29 2025-12-31 13F WATSCO COM 942622200 186,875 72,977 64.07 62,968 36.74 0.0102
2025-11-13 2025-09-30 13F WATSCO COM 942622200 113,898 24,336 27.17 46,049 16.42 0.0072
2025-08-14 2025-06-30 13F WATSCO COM 942622200 89,562 -48,857 -35.30 39,552 -43.78 0.0068
2025-05-13 2025-03-31 13F WATSCO COM 942622200 138,419 149 0.11 70,358 7.38 0.0129
2025-02-14 2024-12-31 13F WATSCO COM 942622200 138,270 76,736 124.71 65,525 116.49 0.0121
2024-11-14 2024-09-30 13F WATSCO COM 942622200 61,534 7,801 14.52 30,267 21.60 0.0066
2024-08-14 2024-06-30 13F WATSCO COM 942622200 53,733 19,971 59.15 24,891 70.67 0.0061
2024-05-13 2024-03-31 13F WATSCO COM 942622200 33,762 19,743 140.83 14,584 142.82 0.0036
2024-02-09 2023-12-31 13F WATSCO COM 942622200 14,019 491 3.63 6,007 17.56 0.0018
2023-11-09 2023-09-30 13F WATSCO COM 942622200 13,528 -10,420 -43.51 5,110 -44.07 0.0018
2023-08-11 2023-06-30 13F WATSCO COM 942622200 23,948 -9,496 -28.39 9,135 -14.14 0.0031
2023-05-12 2023-03-31 13F WATSCO COM 942622200 33,444 20,847 165.49 10,641 238.75 0.0039
2023-02-08 2022-12-31 13F WATSCO COM 942622200 12,597 6,541 108.01 3,142 101.48 0.0012
2022-11-10 2022-09-30 13F WATSCO COM 942622200 6,056 565 10.29 1,559 18.92 0.0007
2022-08-10 2022-06-30 13F WATSCO COM 942622200 5,491 346 6.72 1,311 -16.34 0.0005
2022-05-16 2022-03-31 13F WATSCO COM 942622200 5,145 -5,889 -53.37 1,567 -54.62 0.0005
2022-02-14 2021-12-31 13F WATSCO COM 942622200 11,034 141 1.29 3,453 19.81 0.0010
2021-11-15 2021-09-30 13F WATSCO COM 942622200 10,893 -12,786 -54.00 2,882 -57.54 0.0009
2021-08-13 2021-06-30 13F WATSCO COM 942622200 23,679 3,490 17.29 6,787 28.93 0.0022
2021-05-12 2021-03-31 13F WATSCO COM 942622200 20,189 901 4.67 5,264 20.49 0.0017
2021-02-11 2020-12-31 13F WATSCO COM 942622200 19,288 -44,684 -69.85 4,369 -70.67 0.0015
2020-11-12 2020-09-30 13F WATSCO COM 942622200 63,972 18,509 40.71 14,898 84.40 0.0056
2020-07-31 2020-06-30 13F WATSCO COM 942622200 45,463 30,388 201.58 8,079 239.17 0.0034
2020-05-01 2020-03-31 13F WATSCO COM 942622200 15,075 -23,191 -60.60 2,382 -65.44 0.0011
2020-02-14 2019-12-31 13F WATSCO COM 942622200 38,266 27,460 254.12 6,893 277.08 0.0024
2019-11-14 2019-09-30 13F WATSCO COM 942622200 10,806 -491 -4.35 1,828 -1.03 0.0007
2019-08-14 2019-06-30 13F WATSCO COM 942622200 11,297 -13,330 -54.13 1,847 -47.63 0.0007
2019-05-14 2019-03-31 13F WATSCO COM 942622200 24,627 5,240 27.03 3,527 30.73 0.0015
2019-02-14 2018-12-31 13F WATSCO COM 942622200 19,387 -15,659 -44.68 2,698 -56.77 0.0012
2018-11-14 2018-09-30 13F WATSCO COM 942622200 35,046 -4,986 -12.46 6,241 -12.55 0.0025
2018-08-14 2018-06-30 13F WATSCO COM 942622200 40,032 8,496 26.94 7,137 25.06 0.0031
2018-05-15 2018-03-31 13F WATSCO COM 942622200 31,536 7,516 31.29 5,707 39.71 0.0025
2018-02-14 2017-12-31 13F WATSCO COM 942622200 24,020 -7,817 -24.55 4,085 -20.34 0.0017
2017-11-14 2017-09-30 13F WATSCO COM 942622200 31,837 15,461 94.41 5,128 103.09 0.0024
2017-11-14 2017-06-30 13F/A-1 WATSCO COM 942622200 16,376 -16,439 -50.10 2,525 -46.25 0.0013
2017-08-14 2017-06-30 13F WATSCO COM 942622200 16,376 -16,439 2,525
2017-11-14 2017-03-31 13F/A-1 WATSCO COM 942622200 32,815 13,165 67.00 4,698 61.39 0.0026
2017-05-12 2017-03-31 13F WATSCO COM 942622200 32,815 13,165 4,698
2017-02-14 2016-12-31 13F WATSCO COM 942622200 19,650 1,399 7.67 2,911 13.22 0.0016
2016-11-14 2016-09-30 13F WATSCO COM 942622200 18,251 679 3.86 2,571 4.00 0.0015
2016-08-12 2016-06-30 13F WATSCO COM 942622200 17,572 -51,145 -74.43 2,472 -73.30 0.0016
2016-05-12 2016-03-31 13F WATSCO COM 942622200 68,717 1,254 1.86 9,260 17.19 0.0062
2016-02-16 2015-12-31 13F WATSCO COM 942622200 67,463 -1,053 -1.54 7,902 -2.66 0.0051
2015-11-13 2015-09-30 13F WATSCO COM 942622200 68,516 11,411 19.98 8,118 14.89 0.0057
2015-08-14 2015-06-30 13F WATSCO COM 942622200 57,105 48,602 571.59 7,066 560.99 0.0047
2015-05-14 2015-03-31 13F WATSCO COM 942622200 8,503 239 2.89 1,069 20.93 0.0007
2015-02-17 2014-12-31 13F WATSCO COM 942622200 8,264 8,264 884 0.0006
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2019-11-14 2019-09-30 13F WATSCO COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-08-14 2019-06-30 13F WATSCO COM Call 28,400 4,644 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.