AO 史密斯公司
US ˙ NYSE ˙ US8318652091

SecurityAOS / A. O. Smith Corporation
InstitutionUBS Group AG
Latest Disclosed Ownership921,583 shares
Latest Disclosed Value $ 60,769,184
UBS Group AG ownership in AOS / A. O. Smith Corporation

On May 5, 2026 - UBS Group AG filed a 13F-HR form disclosing ownership of 921,583 shares of A. O. Smith Corporation (US:AOS) valued at $60,769,183 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 1,649,985 shares of A. O. Smith Corporation. This represents a change in shares of -44.15% during the quarter. The current value of the position is $52,539,447 USD.

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

AOS / A. O. Smith Corporation 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 SMITH A O COM 831865209 921,583 -728,402 -44.15 60,769 -44.93 0.0017
2026-01-29 2025-12-31 13F SMITH A O COM 831865209 1,649,985 537,920 48.37 110,351 35.17 0.0179
2025-11-13 2025-09-30 13F SMITH A O COM 831865209 1,112,065 -214,159 -16.15 81,637 -6.12 0.0128
2025-08-14 2025-06-30 13F SMITH A O COM 831865209 1,326,224 23,282 1.79 86,961 2.11 0.0151
2025-05-13 2025-03-31 13F SMITH A O COM 831865209 1,302,942 56,604 4.54 85,160 0.17 0.0157
2025-02-14 2024-12-31 13F SMITH A O COM 831865209 1,246,338 900,083 259.95 85,013 173.32 0.0157
2024-11-14 2024-09-30 13F SMITH A O COM 831865209 346,255 60,463 21.16 31,104 33.08 0.0068
2024-08-14 2024-06-30 13F SMITH A O COM 831865209 285,792 4,007 1.42 23,372 -7.28 0.0058
2024-05-13 2024-03-31 13F SMITH A O COM 831865209 281,785 -3,644 -1.28 25,208 7.13 0.0063
2024-02-09 2023-12-31 13F SMITH A O COM 831865209 285,429 -45,729 -13.81 23,531 7.45 0.0070
2023-11-09 2023-09-30 13F SMITH A O COM 831865209 331,158 91,898 38.41 21,899 25.76 0.0075
2023-08-11 2023-06-30 13F SMITH A O COM 831865209 239,260 20,768 9.51 17,413 15.26 0.0059
2023-05-12 2023-03-31 13F SMITH A O COM 831865209 218,492 -29,472 -11.89 15,109 6.45 0.0055
2023-02-08 2022-12-31 13F SMITH A O COM 831865209 247,964 -113,349 -31.37 14,193 -19.14 0.0053
2022-11-10 2022-09-30 13F SMITH A O COM 831865209 361,313 -88,243 -19.63 17,552 -28.60 0.0077
2022-08-10 2022-06-30 13F SMITH A O COM 831865209 449,556 267,653 147.14 24,581 111.52 0.0101
2022-05-16 2022-03-31 13F SMITH A O COM 831865209 181,903 -49,322 -21.33 11,621 -41.46 0.0039
2022-02-14 2021-12-31 13F SMITH A O COM 831865209 231,225 -40,545 -14.92 19,851 19.61 0.0057
2021-11-15 2021-09-30 13F SMITH A O COM 831865209 271,770 84,010 44.74 16,596 22.66 0.0052
2021-08-13 2021-06-30 13F SMITH A O COM 831865209 187,760 -853,022 -81.96 13,530 -80.77 0.0044
2021-05-12 2021-03-31 13F SMITH A O COM 831865209 1,040,782 423,371 68.57 70,367 107.90 0.0234
2021-02-11 2020-12-31 13F SMITH A O COM 831865209 617,411 -392,153 -38.84 33,846 -36.51 0.0114
2020-11-12 2020-09-30 13F SMITH A O COM 831865209 1,009,564 693,553 219.47 53,305 257.97 0.0201
2020-07-31 2020-06-30 13F SMITH A O COM 831865209 316,011 -82,321 -20.67 14,891 -1.13 0.0063
2020-05-01 2020-03-31 13F SMITH A O COM 831865209 398,332 -254,992 -39.03 15,061 -51.61 0.0071
2020-02-14 2019-12-31 13F SMITH A O COM 831865209 653,324 -134,516 -17.07 31,125 -17.19 0.0108
2019-11-14 2019-09-30 13F SMITH A O COM 831865209 787,840 -31,400 -3.83 37,587 -2.71 0.0145
2019-08-14 2019-06-30 13F SMITH A O COM 831865209 819,240 -93,612 -10.25 38,635 -20.62 0.0149
2019-05-14 2019-03-31 13F SMITH A O COM 831865209 912,852 11,013 1.22 48,673 26.39 0.0201
2019-02-14 2018-12-31 13F SMITH A O COM 831865209 901,839 668,980 287.29 38,509 209.86 0.0175
2018-11-14 2018-09-30 13F SMITH A O COM 831865209 232,859 -101,234 -30.30 12,428 -37.11 0.0049
2018-08-14 2018-06-30 13F SMITH A O COM 831865209 334,093 124,799 59.63 19,761 48.48 0.0086
2018-05-15 2018-03-31 13F SMITH A O COM 831865209 209,294 -44,816 -17.64 13,309 -14.53 0.0057
2018-02-14 2017-12-31 13F SMITH A O COM 831865209 254,110 89,328 54.21 15,571 59.00 0.0064
2017-11-14 2017-09-30 13F SMITH A O COM 831865209 164,782 13,256 8.75 9,793 14.74 0.0045
2017-11-14 2017-06-30 13F/A-1 SMITH A O COM 831865209 151,526 19,963 15.17 8,535 26.80 0.0044
2017-08-14 2017-06-30 13F SMITH A O COM 831865209 151,526 19,963 8,535
2017-11-14 2017-03-31 13F/A-1 SMITH A O COM 831865209 131,563 -51,194 -28.01 6,731 -22.22 0.0037
2017-05-12 2017-03-31 13F SMITH A O COM 831865209 131,563 -51,194 6,731
2017-02-14 2016-12-31 13F SMITH A O COM 831865209 182,757 96,863 112.77 8,654 1.98 0.0048
2016-11-14 2016-09-30 13F SMITH A O COM 831865209 85,894 -14,936 -14.81 8,486 -4.49 0.0051
2016-08-12 2016-06-30 13F SMITH A O COM 831865209 100,830 -12,350 -10.91 8,885 2.87 0.0056
2016-05-12 2016-03-31 13F SMITH A O COM 831865209 113,180 47,074 71.21 8,637 70.56 0.0058
2016-02-16 2015-12-31 13F SMITH A O COM 831865209 66,106 -67,338 -50.46 5,064 -41.79 0.0033
2015-11-13 2015-09-30 13F SMITH A O COM 831865209 133,444 18,017 15.61 8,700 4.71 0.0062
2015-08-14 2015-06-30 13F SMITH A O COM 831865209 115,427 28,350 32.56 8,309 45.34 0.0055
2015-05-14 2015-03-31 13F SMITH A O COM 831865209 87,077 -7,120 -7.56 5,717 7.58 0.0039
2015-02-17 2014-12-31 13F SMITH A O COM 831865209 94,197 94,197 5,314 0.0037
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
(%)
2018-11-14 2018-09-30 13F SMITH A O COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F SMITH A O COM Call 1,100 0.00 65 -7.14 n/a n/a n/a
2018-05-15 2018-03-31 13F SMITH A O COM Call 1,100 70 n/a n/a n/a
2015-11-13 2015-09-30 13F SMITH A O COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-08-14 2015-06-30 13F SMITH A O COM Call 100 0.00 7 0.00 n/a n/a n/a
2015-05-14 2015-03-31 13F SMITH A O COM Call 100 7 n/a n/a n/a
Disclosed Put 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
(%)
2025-11-13 2025-09-30 13F SMITH A O COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-14 2025-06-30 13F SMITH A O COM Put 505,000 359.09 33,113 360.59 n/a n/a n/a
2025-05-13 2025-03-31 13F SMITH A O COM Put 110,000 7,190 n/a n/a n/a
2019-08-14 2019-06-30 13F SMITH A O COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2019-05-14 2019-03-31 13F SMITH A O COM Put 33,600 1,792 n/a n/a n/a
2018-11-14 2018-09-30 13F SMITH A O COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F SMITH A O COM Put 113,800 6,731 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.