A. O. Smith Corporation
US ˙ NYSE ˙ US8318652091

SecurityAOS / A. O. Smith Corporation
InstitutionParallel Advisors, LLC
Latest Disclosed Ownership1,746 shares
Latest Disclosed Value $ 116,772
Parallel Advisors, LLC ownership in AOS / A. O. Smith Corporation

On February 11, 2026 - Parallel Advisors, LLC filed a 13F-HR form disclosing ownership of 1,746 shares of A. O. Smith Corporation (US:AOS) valued at $116,772 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 1,108 shares of A. O. Smith Corporation. This represents a change in shares of 57.58% during the quarter. The current value of the position is $99,051 USD.

Parallel Advisors, LLC 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 .

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)
2026-02-11 2025-12-31 13F AO SMITH Stock 831865209 1,746 638 57.58 117 43.21 0.0021
2025-11-13 2025-09-30 13F AO SMITH Stock 831865209 1,108 100 9.92 81 22.73 0.0015
2025-07-08 2025-06-30 13F AO SMITH Stock 831865209 1,008 -563 -35.84 66 -35.29 0.0013
2025-04-08 2025-03-31 13F AO SMITH Stock 831865209 1,571 452 40.39 103 34.21 0.0023
2025-02-10 2024-12-31 13F AO SMITH Stock 831865209 1,119 474 73.49 76 33.33 0.0017
2024-11-13 2024-09-30 13F AO SMITH Stock 831865209 645 -133 -17.10 58 -9.52 0.0014
2024-08-08 2024-06-30 13F AO SMITH Stock 831865209 778 59 8.21 64 -1.56 0.0016
2024-05-06 2024-03-31 13F AO SMITH Stock 831865209 719 151 26.58 64 39.13 0.0017
2024-02-12 2023-12-31 13F AO SMITH Stock 831865209 568 -6 -1.05 47 24.32 0.0014
2024-05-20 2023-09-30 13F/A-1 AO SMITH Stock 831865209 574 -123 -17.65 38 -26.00 0.0013
2023-11-14 2023-09-30 13F AO SMITH Stock 831865209 574 -123 38 0.0013
2024-05-20 2023-06-30 13F/A-1 AO SMITH Stock 831865209 697 28 4.19 51 8.70 0.0016
2023-08-04 2023-06-30 13F AO SMITH Stock 831865209 697 28 51 0.0016
2024-05-20 2023-03-31 13F/A-1 AO SMITH Stock 831865209 669 33 5.19 46 27.78 0.0016
2023-04-25 2023-03-31 13F AO SMITH Stock 831865209 669 33 46 0.0016
2023-02-06 2022-12-31 13F AO SMITH Stock 831865209 636 112 21.37 36 44.00 0.0016
2022-11-10 2022-09-30 13F AO SMITH Stock 831865209 524 -105 -16.69 25 -26.47 0.0012
2022-08-01 2022-06-30 13F AO SMITH Stock 831865209 629 66 11.72 34 -8.11 0.0016
2022-04-28 2022-03-31 13F AO SMITH Stock 831865209 563 -37 -6.17 37 -28.85 0.0015
2022-01-20 2021-12-31 13F AO SMITH Stock 831865209 600 11 1.87 52 44.44 0.0019
2021-11-02 2021-09-30 13F/A-1 AO SMITH Stock 831865209 589 18 3.15 36 -12.20 0.0015
2021-08-06 2021-06-30 13F AO SMITH Stock 831865209 571 30 5.55 41 10.81 0.0017
2021-04-23 2021-03-31 13F AO SMITH Stock 831865209 541 8 1.50 37 27.59 0.0017
2021-02-02 2020-12-31 13F AO SMITH Stock 831865209 533 -195 -26.79 29 -23.68 0.0016
2020-10-27 2020-09-30 13F AO SMITH Stock 831865209 728 -7 -0.95 38 11.76 0.0024
2020-07-16 2020-06-30 13F AO SMITH Stock 831865209 735 339 85.61 34 126.67 0.0022
2020-04-27 2020-03-31 13F AO SMITH Stock 831865209 396 -82 -17.15 15 -34.78 0.0012
2020-01-30 2019-12-31 13F AO SMITH Stock 831865209 478 -44 -8.43 23 -8.00 0.0017
2019-11-01 2019-09-30 13F AO SMITH Stock 831865209 522 381 270.21 25 257.14 0.0021
2019-08-05 2019-06-30 13F AO SMITH Stock 831865209 141 -151 -51.71 7 -56.25 0.0007
2019-05-01 2019-03-31 13F AO SMITH Stock 831865209 292 135 85.99 16 166.67 0.0018
2019-02-05 2018-12-31 13F AO SMITH Stock 831865209 157 45 40.18 6 0.00 0.0008
2018-11-01 2018-09-30 13F AO SMITH Stock 831865209 112 0 0.00 6 0.00 0.0007
2018-07-30 2018-06-30 13F AO SMITH Stock 831865209 112 0 0.00 6 -14.29 0.0009
2018-05-08 2018-03-31 13F AO SMITH Stock 831865209 112 0 0.00 7 0.00 0.0011
2018-02-13 2017-12-31 13F SMITH A O COM Stock 831865209 112 0 0.00 7 0.00 0.0011
2017-11-15 2017-09-30 13F/A-1 SMITH A O COM Stock 831865209 112 0 0.00 7 16.67 0.0012
2017-08-07 2017-06-30 13F SMITH A O COM Stock 831865209 112 0 0.00 6 0.00 0.0011
2017-05-12 2017-03-31 13F/A-1 SMITH A O COM Stock 831865209 112 -22 -16.42 6 0.00 0.0012
2017-05-12 2017-03-31 13F SMITH A O COM Stock 831865209 112 6
2017-02-14 2016-12-31 13F SMITH A O COM Stock 831865209 134 134 6 0.0014
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
(%)
2022-01-19 2021-12-31 13F AO SMITH Stock Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-10-22 2021-09-30 13F AO SMITH Stock Call 571 41 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.