STANDARD MTR PRODS INC SMP
COM · Common Stock · CUSIP 853666105
US automotive aftermarket company
- SectorConsumer discretionary
- IndustryMotor Vehicle Parts & Accessories
- HeadquartersLong Island City, NY
- Founded1919
- Websitesmpcorp.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($7.6m this quarter). Holder counts are more reliable. Shares outstanding: 22.0m as of 2025-08-01, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $30.72. Options: 3 managers hold calls ($3.2m notional), 1 hold puts ($0).
Trends to Q2 2025
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 158 |
| Q4 2022 | 160 |
| Q1 2023 | 164 |
| Q2 2023 | 169 |
| Q3 2023 | 166 |
| Q4 2023 | 170 |
| Q1 2024 | 150 |
| Q2 2024 | 153 |
| Q3 2024 | 164 |
| Q4 2024 | 164 |
| Q1 2025 | 165 |
| Q2 2025 | 160 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2023 | 78 | 82 |
| Q4 2023 | 79 | 87 |
| Q1 2024 | 58 | 93 |
| Q2 2024 | 77 | 75 |
| Q3 2024 | 85 | 67 |
| Q4 2024 | 80 | 66 |
| Q1 2025 | 90 | 74 |
| Q2 2025 | 85 | 78 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2024 | $9.0k | $3.0k | 0.33 |
| Q4 2024 | $0 | $3.0k | — |
| Q1 2025 | $0 | $241.8k | — |
| Q2 2025 | $3.2m | $0 | 0.00 |
Biggest buyers
| CSM Advisors, LLC | New | +196.1k |
| BNP PARIBAS FINANCIAL MARKETS | Added | +173.9k |
| GAMCO INVESTORS, INC. ET AL | Added | +166.5k |
| VANGUARD GROUP INC | Added | +154.2k |
| BlackRock, Inc. | Added | +140.8k |
| PRUDENTIAL FINANCIAL INC | Added | +101.0k |
| Brandywine Global Investment Management, LLC | New | +94.6k |
| GABELLI FUNDS LLC | Added | +91.1k |
| CITADEL ADVISORS LLC | Added | +86.3k |
| Jackson Creek Investment Advisors LLC | New | +56.7k |
Biggest sellers
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Sold out | -337.1k |
| Invenomic Capital Management LP | Sold out | -122.1k |
| TEACHER RETIREMENT SYSTEM OF TEXAS | Sold out | -105.8k |
| ALGERT GLOBAL LLC | Reduced | -77.0k |
| AMERICAN CENTURY COMPANIES INC | Reduced | -74.4k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -68.4k |
| D. E. Shaw & Co., Inc. | Reduced | -53.8k |
| JANE STREET GROUP, LLC | Reduced | -45.4k |
| AQR CAPITAL MANAGEMENT LLC | Sold out | -42.2k |
| GSA CAPITAL PARTNERS LLP | Reduced | -40.7k |
Biggest calls
| GROUP ONE TRADING LLC | New | $3.2m105.4k shares |
| SIMPLEX TRADING, LLC | New | $6.0k200 shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution filed 2025-04-28 | 14.4% |
| ROYCE & ASSOCIATES LP 13G · exempt (held before listing) +0.2 pts · filed 2026-01-21 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-27)
Insider purchases and sales in Q2 2025
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2023 | 0 | — | 0 | — | — |
| Q4 2023 | 0 | — | 5 | $300.7k | $62.1k |
| Q1 2024 | 0 | — | 0 | — | — |
| Q2 2024 | 0 | — | 0 | — | — |
| Q3 2024 | 0 | — | 0 | — | — |
| Q4 2024 | 0 | — | 5 | $387.0k | — |
| Q1 2025 | 0 | — | 1 | $299.3k | — |
| Q2 2025 | 0 | — | 0 | — | — |
None reported in Q2 2025.
Holders, Q2 2025
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.00% of their portfolio | 3.9m $120.5m | Added +140.8k |
| VANGUARD GROUP INC 0.00% of their portfolio | 1.8m $54.2m | Added +154.2k |
| DIMENSIONAL FUND ADVISORS LP 0.01% of their portfolio | 1.4m $42.6m | Reduced -68.4k |
| ROYCE & ASSOCIATES LP 0.41% of their portfolio | 1.3m $40.4m | Added +6.2k |
| GAMCO INVESTORS, INC. ET AL 0.29% of their portfolio | 956.7k $29.4m | Added +166.5k |
| STATE STREET CORP 0.00% of their portfolio | 863.1k $26.5m | Added +497 |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 499.0k $15.3m | Added +6.7k |
| AMERICAN CENTURY COMPANIES INC 0.01% of their portfolio | 463.9k $14.2m | Reduced -74.4k |
| GABELLI FUNDS LLC 0.09% of their portfolio | 415.1k $12.8m | Added +91.1k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 327.1k $10.0m | Added +15.5k |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 309.7k $9.5m | Added +54.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 297.7k $9.1m | Reduced -25.8k |
| MORGAN STANLEY 0.00% of their portfolio | 267.5k $8.2m | Added +8.5k |
| Azarias Capital Management, L.P. 3.60% of their portfolio | 257.7k $7.9m | Reduced -8.3k |
| BNP PARIBAS FINANCIAL MARKETS 0.01% of their portfolio | 221.1k $6.8m | Added +173.9k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 200.1k $6.1m | Added +86.3k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.15% of their portfolio | 199.5k $6.1m | Added +3.9k |
| CSM Advisors, LLC 0.18% of their portfolio | 196.1k $6.0m | New |
| Invesco Ltd. 0.00% of their portfolio | 168.1k $5.2m | Reduced -16.0k |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 162.0k $5.0m | Added +101.0k |
| FRANKLIN RESOURCES INC 0.00% of their portfolio | 155.1k $4.8m | Added +33.4k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 131.5k $4.0m | Added +2.6k |
| Nuveen, LLC 0.00% of their portfolio | 128.4k $3.9m | Added +49.6k |
| DEAN INVESTMENT ASSOCIATES, LLC 0.58% of their portfolio | 127.9k $3.9m | Reduced -1.5k |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 127.3k $3.9m | Reduced -22.0k |
| Empowered Funds, LLC 0.04% of their portfolio | 117.9k $3.6m | Added +3.9k |
| PRINCIPAL FINANCIAL GROUP INC 0.00% of their portfolio | 113.7k $3.5m | Added +2.1k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 102.1k $3.1m | Added +56.0k |
| Brandywine Global Investment Management, LLC 0.02% of their portfolio | 94.6k $2.9m | New |
| Qube Research & Technologies Ltd 0.00% of their portfolio | 93.0k $2.9m | Reduced -27.7k |
| RICE HALL JAMES & ASSOCIATES, LLC 0.15% of their portfolio | 89.1k $2.7m | Reduced -7.4k |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 83.9k $2.6m | Added +11.9k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 77.1k $2.4m | Added +47.0k |
| Dean Capital Management 0.96% of their portfolio | 76.3k $2.3m | Added +8.8k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 71.9k $2.2m | Reduced -34.9k |
| Public Sector Pension Investment Board 0.01% of their portfolio | 71.2k $2.2m | Added +5.7k |
| BARCLAYS PLC 0.00% of their portfolio | 68.5k $2.1m | Added +19.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 67.0k $2.1m | Added +32.6k |
| Jackson Creek Investment Advisors LLC 0.47% of their portfolio | 56.7k $1.7m | New |
| Legal & General Group Plc 0.00% of their portfolio | 54.8k $1.7m | Added +628 |
| UBS Group AG 0.00% of their portfolio | 48.2k $1.5m | Added +21.6k |
| Legato Capital Management LLC 0.17% of their portfolio | 47.8k $1.5m | Added +5.3k |
| LAZARD ASSET MANAGEMENT LLC 0.00% of their portfolio | 45.6k $1.4m | Added +45.5k |
| ALGERT GLOBAL LLC 0.03% of their portfolio | 42.4k $1.3m | Reduced -77.0k |
| Swiss National Bank 0.00% of their portfolio | 41.3k $1.3m | Added +1.3k |
| SEGALL BRYANT & HAMILL, LLC 0.02% of their portfolio | 40.7k $1.3m | New |
| Inspire Investing, LLC 0.14% of their portfolio | 40.6k $1.2m | Added +26.7k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 38.8k $1.2m | Reduced -53.8k |
| Wakefield Asset Management LLLP 0.32% of their portfolio | 37.2k $1.1m | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 36.5k $1.1m | New |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 34.7k $1.1m | Reduced -35.6k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 34.2k $1.1m | Unchanged |
| North Star Investment Management Corp. 0.07% of their portfolio | 33.0k $1.0m | Unchanged |
| Teton Advisors, Inc. 0.61% of their portfolio | 32.5k $998.4k | Unchanged |
| Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio | 31.9k $982.0k | New |
| Campbell & CO Investment Adviser LLC 0.06% of their portfolio | 31.2k $957.3k | Added +9.0k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 30.5k $936.6k | Reduced -40.5k |
| Verition Fund Management LLC 0.01% of their portfolio | 30.3k $931.4k | New |
| SummerHaven Investment Management, LLC 0.60% of their portfolio | 29.8k $915.9k | Added +587 |
| State of Tennessee, Department of Treasury 0.00% of their portfolio | 29.7k $912.7k | Added +15.6k |
| HSBC HOLDINGS PLC 0.00% of their portfolio | 27.5k $851.3k | Added +5.5k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 27.4k $841.0k | Reduced -4.4k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 25.6k $786.4k | Reduced -270 |
| FineMark National Bank & Trust 0.03% of their portfolio | 25.5k $783.9k | Unchanged |
| Magnetar Financial LLC 0.00% of their portfolio | 24.6k $754.3k | Added +8.5k |
| Annis Gardner Whiting Capital Advisors, LLC 0.25% of their portfolio | 23.8k $731.1k | Added +517 |
| CWM, LLC 0.00% of their portfolio | 23.5k $722.0k | Reduced -333 |
| SG Americas Securities, LLC 0.00% of their portfolio | 23.2k $712.0k | Reduced -2.4k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 22.9k $705.0k | Added +1.4k |
| INTECH INVESTMENT MANAGEMENT LLC 0.01% of their portfolio | 22.5k $691.7k | Reduced -5.4k |
| Unison Advisors LLC 0.08% of their portfolio | 21.9k $672.4k | Added +291 |
| CITIGROUP INC 0.00% of their portfolio | 21.7k $667.8k | Reduced -9.6k |
| CANADA LIFE ASSURANCE Co 0.00% of their portfolio | 20.9k $641.0k | Added +242 |
| Susquehanna Portfolio Strategies, LLC 0.01% of their portfolio | 20.0k $614.1k | New |
| SEI INVESTMENTS CO 0.00% of their portfolio | 19.6k $602.5k | Added +7.5k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 18.6k $572.5k | Reduced -45.4k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 17.8k $546.1k | Reduced -1.5k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 16.6k $511.2k | Reduced -3.2k |
| Horizon Investments, LLC 0.01% of their portfolio | 16.5k $506.5k | New |
| KLP KAPITALFORVALTNING AS 0.00% of their portfolio | 16.1k $494.6k | Unchanged |
| Versor Investments LP 0.09% of their portfolio | 15.8k $486.3k | Reduced -13.8k |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC 0.01% of their portfolio | 15.4k $473.5k | Unchanged |
| Thrivent Financial for Lutherans 0.00% of their portfolio | 15.4k $472.0k | Added +198 |
| Probity Advisors, Inc. 0.08% of their portfolio | 15.3k $471.0k | Added +2.4k |
| Pacific Ridge Capital Partners, LLC 0.10% of their portfolio | 14.1k $434.2k | Unchanged |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 14.1k $431.8k | Added +1.0k |
| Creative Planning 0.00% of their portfolio | 14.0k $430.6k | New |
| GSA CAPITAL PARTNERS LLP 0.03% of their portfolio | 13.2k $406.0k | Reduced -40.7k |
| Polymer Capital Management (US) LLC 0.06% of their portfolio | 12.7k $390.9k | Reduced -4.7k |
| State of Alaska, Department of Revenue 0.00% of their portfolio | 12.4k $381.0k | Added +991 |
| CW Advisors, LLC 0.00% of their portfolio | 12.2k $375.2k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 11.9k $364.8k | Unchanged |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 0.00% of their portfolio | 11.9k $364.5k | Reduced -19.2k |
| COMMONWEALTH EQUITY SERVICES, LLC 0.00% of their portfolio | 11.7k $358.0k | Added +447 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 11.6k $355.9k | Reduced -862 |
| Illinois Municipal Retirement Fund 0.00% of their portfolio | 11.0k $338.3k | Reduced -228 |
| Man Group plc 0.00% of their portfolio | 10.5k $323.6k | Reduced -20.4k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 10.1k $310.0k | Reduced -4.9k |
| Louisiana State Employees Retirement System 0.01% of their portfolio | 9.8k $301.1k | Added +100 |
| Petrus Trust Company, LTA 0.03% of their portfolio | 9.2k $281.9k | Reduced -16.4k |