Entity Type
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GROUP ONE TRADING LLC SEC EDGAR Filings
SEC filings, ownership reports, and insider transactions for CIK 0000932540.
Total Filings
143
Latest Filing
05 Mar 2026
Industry
n/a
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- Business address
- 425 S Financial Place, Suite 3400, Chicago, IL, 60605
- Top securities (13F)
- SILJ, IREN, WBD, TIGR, NN, AMD, MAR, SOFI, CYTK, SIL, AG, DAL, PAAS, GDX, URA, MMM, CAR, ET, CRWD, and ONDS
- Top holdings (Schedule 13G)
- RILY and QNCX
- State of incorporation
- DE
- Fiscal year end
- 30 September
- Former names
- GROUP ONE TRADING, L.P. (to 14 Aug 2024), GROUP ONE TRADING L P (to 29 Nov 2002)
Quick Takeaways
- GROUP ONE TRADING LLC is an SEC filer tracked under CIK 0000932540.
- 143 filings are listed on this profile.
- Common form coverage includes SCHEDULE 13G, 13F-HR, X-17A-5 and more.
What Changed
- Latest filing: SCHEDULE 13G filed on 05 Mar 2026.
- Report period: not specified in filing header.
Why This Matters
- You can quote filing dates and form types directly from the SEC record on this page.
- Use this profile before deeper ownership or insider analysis to confirm filing history context.
Official SEC Source
Filer Overview
GROUP ONE TRADING LLC has filed 143 SEC EDGAR filings since 29 Nov 2002. Common forms include SCHEDULE 13G, 13F-HR, X-17A-5, N-PX and more.
Latest Filings
Recent SEC filings for GROUP ONE TRADING LLC with direct links to document and filing folders.
| Form type | Document | Filing | Description | Filing date | Reporting date | File number(s) |
|---|---|---|---|---|---|---|
| SCHEDULE 13G | Open SCHEDULE 13G document | View SEC filing for SCHEDULE 13G | 05 Mar 2026 | |||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Feb 2026 | 31 Dec 2025 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | 21 Nov 2025 | 30 Sep 2025 | 008-47762 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Nov 2025 | 30 Sep 2025 | 028-14920 | |
| N-PX | Open N-PX document | View SEC filing for N-PX | 14 Aug 2025 | 30 Jun 2025 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2025 | 30 Jun 2025 | 028-14920 | |
| SCHEDULE 13G | Open SCHEDULE 13G document | View SEC filing for SCHEDULE 13G | 14 May 2025 | |||
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 14 May 2025 | 31 Dec 2024 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2025 | 31 Mar 2025 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2025 | 31 Dec 2024 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2024 | 30 Sep 2024 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2024 | 30 Sep 2024 | 008-47762 |
| SCHEDULE 13G | Open SCHEDULE 13G document | View SEC filing for SCHEDULE 13G | 14 Nov 2024 | |||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2024 | 30 Sep 2024 | 028-14920 | |
| N-PX | Open N-PX document | View SEC filing for N-PX | 14 Aug 2024 | 30 Jun 2024 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2024 | 30 Jun 2024 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 May 2024 | 31 Mar 2024 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Feb 2024 | 31 Dec 2023 | 028-14920 | |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2023 | 30 Sep 2023 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2023 | 30 Sep 2023 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Nov 2023 | 30 Sep 2023 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Aug 2023 | 30 Jun 2023 | 028-14920 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 13G AMENDMENT | 12 May 2023 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 May 2023 | 31 Mar 2023 | 028-14920 | |
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | AMENDMENT 1 | 06 Mar 2023 | ||
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 13 Feb 2023 | |||
| SC 13G/A | Open SC 13G/A document | View SEC filing for SC 13G/A | 10 Feb 2023 | |||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Feb 2023 | 31 Dec 2022 | 028-14920 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 13G | 10 Jan 2023 | ||
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2022 | 30 Sep 2022 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2022 | 30 Sep 2022 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Nov 2022 | 30 Sep 2022 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2022 | 30 Jun 2022 | 028-14920 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | SGBX | 03 Jun 2022 | ||
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 May 2022 | 31 Mar 2022 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Feb 2022 | 31 Dec 2021 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2021 | 30 Sep 2021 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2021 | 30 Sep 2021 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Nov 2021 | 30 Sep 2021 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 Aug 2021 | 30 Jun 2021 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 May 2021 | 31 Mar 2021 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 Feb 2021 | 31 Dec 2020 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 30 Nov 2020 | 30 Sep 2020 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Nov 2020 | 30 Sep 2020 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 Aug 2020 | 30 Jun 2020 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 May 2020 | 31 Mar 2020 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 Feb 2020 | 31 Dec 2019 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2019 | 30 Sep 2019 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2019 | 30 Sep 2019 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Nov 2019 | 30 Sep 2019 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Aug 2019 | 30 Jun 2019 | 028-14920 | |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 14 May 2019 | 31 Mar 2019 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 13 May 2019 | 31 Mar 2019 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 06 Feb 2019 | 31 Dec 2018 | 028-14920 | |
| SC 13G | Open SC 13G document | View SEC filing for SC 13G | 31 Jan 2019 | |||
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2018 | 30 Sep 2018 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2018 | 30 Sep 2018 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 08 Nov 2018 | 30 Sep 2018 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2018 | 30 Jun 2018 | 028-14920 | |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 17 May 2018 | 31 Mar 2018 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 May 2018 | 31 Mar 2018 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 09 Feb 2018 | 31 Dec 2017 | 028-14920 | |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 24 Nov 2017 | 30 Sep 2017 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 24 Nov 2017 | 30 Sep 2017 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Nov 2017 | 30 Sep 2017 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Aug 2017 | 30 Jun 2017 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 10 May 2017 | 31 Mar 2017 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Feb 2017 | 31 Dec 2016 | 028-14920 | |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2016 | 30 Sep 2016 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2016 | 30 Sep 2016 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 Nov 2016 | 30 Sep 2016 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Aug 2016 | 30 Jun 2016 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 May 2016 | 31 Mar 2016 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Feb 2016 | 31 Dec 2015 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2015 | 30 Sep 2015 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 27 Nov 2015 | 30 Sep 2015 | 008-47762 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | 20 Nov 2015 | 30 Sep 2015 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 06 Nov 2015 | 30 Sep 2015 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Aug 2015 | 30 Jun 2015 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 14 May 2015 | 31 Mar 2015 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 11 Feb 2015 | 31 Dec 2014 | 028-14920 | |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 01 Dec 2014 | 30 Sep 2014 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 28 Nov 2014 | 30 Sep 2014 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 31 Oct 2014 | 30 Sep 2014 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 12 Aug 2014 | 30 Jun 2014 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 07 May 2014 | 31 Mar 2014 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 31 Jan 2014 | 31 Dec 2013 | 028-14920 | |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2013 | 30 Sep 2013 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2013 | 30 Sep 2013 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 15 Nov 2013 | 30 Sep 2013 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | 02 Aug 2013 | 30 Jun 2013 | 028-14920 | |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2013.Q1 | 07 May 2013 | 31 Mar 2013 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2012.Q4 | 07 Feb 2013 | 31 Dec 2012 | 028-14920 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2012 | 30 Sep 2012 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2012 | 30 Sep 2012 | 008-47762 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2012.Q3 | 14 Nov 2012 | 30 Sep 2012 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2012.Q2 AMENDMENT | 14 Nov 2012 | 30 Jun 2012 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2012.Q2 | 14 Aug 2012 | 30 Jun 2012 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2012.Q1 | 14 May 2012 | 31 Mar 2012 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2008.Q1 | 14 May 2012 | 31 Mar 2008 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2008.Q2 | 14 May 2012 | 30 Jun 2008 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2008.Q3 | 14 May 2012 | 30 Sep 2008 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2008.Q4 | 14 May 2012 | 31 Dec 2008 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2009.Q1 | 14 May 2012 | 31 Mar 2009 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2009.Q2 | 14 May 2012 | 30 Jun 2009 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2009.Q3 | 14 May 2012 | 30 Sep 2009 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2009.Q4 | 14 May 2012 | 31 Dec 2009 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2010.Q1 AMENDMENT | 14 May 2012 | 31 Mar 2010 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2010.Q2 AMENDMENT NO.1 | 14 May 2012 | 30 Jun 2010 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2010.Q3 AMENDMENT NO.1 | 14 May 2012 | 30 Sep 2010 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2010.Q4 AMENDMENT NO.1 | 14 May 2012 | 31 Dec 2010 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2011.Q1 AMENDMENT NO.1 | 14 May 2012 | 31 Mar 2011 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2011.Q2 AMENDMENT NO.1 | 14 May 2012 | 30 Jun 2011 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2011.Q3 AMENDMENT NO.1 | 14 May 2012 | 30 Sep 2011 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2011.Q4 AMENDMENT NO.2 | 14 May 2012 | 31 Dec 2011 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2010.Q1 | 24 Apr 2012 | 31 Mar 2010 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2010.Q2 | 24 Apr 2012 | 30 Jun 2010 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2010.Q3 | 24 Apr 2012 | 30 Sep 2010 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2010.Q4 | 24 Apr 2012 | 31 Dec 2010 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2011.Q1 | 23 Apr 2012 | 31 Mar 2011 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2011.Q2 | 23 Apr 2012 | 30 Jun 2011 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2011.Q3 | 12 Apr 2012 | 30 Sep 2011 | 028-14920 |
| 13F-HR/A | Open 13F-HR/A document | View SEC filing for 13F-HR/A | GROUP ONE TRADING LP 13F 2011.Q4 AMENDMENT | 13 Mar 2012 | 31 Dec 2011 | 028-14920 |
| 13F-HR | Open 13F-HR document | View SEC filing for 13F-HR | GROUP ONE TRADING LP 13F-2011.Q4 | 08 Mar 2012 | 31 Dec 2011 | 028-14920 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2011 | 30 Sep 2011 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2011 | 30 Sep 2011 | 008-47762 |
| FOCUSN/A | Open FOCUSN/A document | View SEC filing for FOCUSN/A | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2010 | 30 Sep 2010 | 008-47762 |
| FOCUSN | Open FOCUSN document | View SEC filing for FOCUSN | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2010 | 30 Sep 2010 | 008-47762 |
| X-17A-5 | Open X-17A-5 document | View SEC filing for X-17A-5 | AUTO-GENERATED PAPER DOCUMENT | 29 Nov 2010 | 30 Sep 2010 | 008-47762 |
About this filer
GROUP ONE TRADING LLC files with the SEC under CIK 0000932540. This page aggregates EDGAR filings and related ownership activity.
FAQ
- What is a CIK?
- A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
- Why are some filings missing?
- New filings appear as the SEC updates EDGAR, and older records can vary by availability.
- How often is this page updated?
- Updates follow new EDGAR submissions and periodic data refreshes.