| Quarter | Holdings | Value ($000) | Form Type | Date Filed | Filing ID | Name |
|---|---|---|---|---|---|---|
| Q2 2023 | 9,330 | 121,640,666 | 13F-HR | 8/4/2023 | 000148854223000009 | SIMPLEX TRADING, LLC |
| Q1 2023 | 9,440 | 113,801,386 | 13F-HR | 4/27/2023 | 000148854223000006 | SIMPLEX TRADING, LLC |
| Q4 2022 | 9,644 | 91,919,746 | 13F-HR | 2/2/2023 | 000148854223000003 | SIMPLEX TRADING, LLC |
| Q3 2022 | 10,392 | 88,454,611 | 13F-HR | 11/4/2022 | 000148854222000011 | SIMPLEX TRADING, LLC |
| Q2 2022 | 10,360 | 94,071,920 | 13F-HR | 8/3/2022 | 000148854222000009 | SIMPLEX TRADING, LLC |
| Q1 2022 | 10,642 | 109,356,144 | 13F-HR | 5/2/2022 | 000148854222000006 | SIMPLEX TRADING, LLC |
| Q4 2021 | 10,651 | 99,044,558 | RESTATEMENT | 2/23/2022 | 000148854222000005 | SIMPLEX TRADING, LLC |
| Q4 2021 | 9,743 | 106,904,097 | 13F-HR | 2/4/2022 | 000148854222000002 | SIMPLEX TRADING, LLC |
| Q3 2021 | 9,899 | 107,070,579 | 13F-HR | 10/28/2021 | 000148854221000012 | SIMPLEX TRADING, LLC |
| Q2 2021 | 10,093 | 103,526,715 | 13F-HR | 8/12/2021 | 000148854221000009 | SIMPLEX TRADING, LLC |
| Q1 2021 | 9,845 | 55,654,631 | 13F-HR | 4/26/2021 | 000148854221000007 | SIMPLEX TRADING, LLC |
| Q4 2020 | 8,849 | 77,177,776 | 13F-HR | 2/2/2021 | 000148854221000002 | SIMPLEX TRADING, LLC |
| Q3 2020 | 8,296 | 73,516,410 | 13F-HR | 10/14/2020 | 000148854220000009 | SIMPLEX TRADING, LLC |
| Q2 2020 | 7,991 | 62,681,646 | 13F-HR | 7/13/2020 | 000148854220000007 | SIMPLEX TRADING, LLC |
| Q1 2020 | 7,824 | 56,715,256 | 13F-HR | 4/29/2020 | 000148854220000005 | SIMPLEX TRADING, LLC |
| Q4 2019 | 7,468 | 45,747,906 | 13F-HR | 2/5/2020 | 000148854220000002 | SIMPLEX TRADING, LLC |
| Q3 2019 | 7,449 | 35,153,197 | 13F-HR | 10/15/2019 | 000148854219000021 | SIMPLEX TRADING, LLC |
| Q2 2019 | 7,289 | 36,639,697 | 13F-HR | 7/26/2019 | 000148854219000017 | SIMPLEX TRADING, LLC |
| Q1 2019 | 7,323 | 35,965,545 | 13F-HR | 4/18/2019 | 000148854219000011 | SIMPLEX TRADING, LLC |
| Q4 2018 | 7,226 | 34,079,386 | 13F-HR | 1/16/2019 | 000148854219000002 | SIMPLEX TRADING, LLC |
| Q3 2018 | 7,538 | 31,135,705 | 13F-HR | 10/23/2018 | 000148854218000018 | SIMPLEX TRADING, LLC |
| Q2 2018 | 7,531 | 25,508,262 | 13F-HR | 7/30/2018 | 000148854218000014 | SIMPLEX TRADING, LLC |
| Q1 2018 | 7,317 | 2,274,342 | 13F-HR | 4/26/2018 | 000148854218000013 | SIMPLEX TRADING, LLC |
| Q4 2017 | 7,181 | 2,323,556 | 13F-HR | 1/10/2018 | 000148854218000006 | SIMPLEX TRADING, LLC |
| Q3 2017 | 7,063 | 2,449,096 | 13F-HR | 10/25/2017 | 000148854217000015 | SIMPLEX TRADING, LLC |
| Q2 2017 | 7,171 | 2,301,912 | 13F-HR | 7/12/2017 | 000148854217000011 | SIMPLEX TRADING, LLC |
| Q1 2017 | 7,144 | 2,310,901 | 13F-HR | 4/21/2017 | 000148854217000008 | SIMPLEX TRADING, LLC |
| Q4 2016 | 6,918 | 1,673,775 | 13F-HR | 1/11/2017 | 000148854217000001 | SIMPLEX TRADING, LLC |
| Q3 2016 | 6,855 | 1,475,050 | 13F-HR | 10/7/2016 | 000148854216000034 | SIMPLEX TRADING, LLC |
| Q2 2016 | 6,888 | 1,496,171 | 13F-HR | 7/18/2016 | 000148854216000028 | SIMPLEX TRADING, LLC |
| Q1 2016 | 6,719 | 1,254,520 | 13F-HR | 4/14/2016 | 000146430216000007 | SIMPLEX TRADING, LLC |
| Q4 2015 | 6,657 | 1,277,052 | 13F-HR | 1/20/2016 | 000148854216000017 | SIMPLEX TRADING, LLC |
| Q3 2015 | 6,775 | 1,364,151 | 13F-HR | 10/8/2015 | 000148854215000012 | SIMPLEX TRADING, LLC |
| Q2 2015 | 6,441 | 1,193,257 | 13F-HR | 7/8/2015 | 000148854215000007 | SIMPLEX TRADING, LLC |
| Q1 2015 | 6,178 | 859,885 | 13F-HR | 4/21/2015 | 000148854215000006 | SIMPLEX TRADING, LLC |
| Q4 2014 | 5,578 | 825,532 | 13F-HR | 3/4/2015 | 000148854215000004 | SIMPLEX TRADING, LLC |