Group One Trading, L.P.

SEC CIK: 0000932540
Latest filing: Aug 13, 2026

SEC filings (opens in a new tab)

OPEN holding history

Opendoor Technologies Inc. in every 13F filed by Group One Trading, L.P., including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

OPEN overview All 13F holders of OPEN Full Q2 2026 holdings

Shares (Q1 2026): 0; Sold out in Q1 2026
Value: $0
% of portfolio: 0.0%
Quarters held: 19; Since Q2 2021

Holdings of OPEN by Group One Trading, L.P., by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q1 2026	0	$0	0.0%	−203,193−100.0%	Sold out	Holders
Q4 2025	203,193	$1.18M	<0.1%	−1,266,972−86.2%	Reduced	Holders
Q3 2025	1,470,165	$11.7M	0.4%	−83,064−5.3%	Reduced	Holders
Q2 2025	1,553,229	$827.9K	<0.1%	+915,365+143.5%	Added	Holders
Q1 2025	637,864	$650.6K	<0.1%	−961,024−60.1%	Reduced	Holders
Q4 2024	1,598,888	$2.56M	0.1%	−1,323,873−45.3%	Reduced	Holders
Q3 2024	2,922,761	$5.85M	0.2%	+658,734+29.1%	Added	Holders
Q2 2024	2,264,027	$4.17M	0.1%	−371,936−14.1%	Reduced	Holders
Q1 2024	2,635,963	$7.99M	0.3%	−224,714−7.9%	Reduced	Holders
Q4 2023	2,860,677	$12.8M	0.4%	+1,126,309+64.9%	Added	Holders
Q3 2023	1,734,368	$4.58M	0.2%	+1,357,081+359.7%	Added	Holders
Q2 2023	377,287	$1.52M	0.1%	+100,835+36.5%	Added	Holders
Q1 2023	276,452	$486.6K	<0.1%	+242,980+725.9%	Added	Holders
Q4 2022	33,472	$38.8K	<0.1%	−517,633−93.9%	Reduced	Holders
Q3 2022	551,105	$1.71M	0.1%	−1,516,974−73.4%	Reduced	Holders
Q2 2022	2,068,079	$9.74M	0.3%	+86,868+4.4%	Added	Holders
Q1 2022	1,981,211	$17.1M	0.4%	+1,812,309+1,073.0%	Added	Holders
Q4 2021	168,902	$2.47M	<0.1%	+122,125+261.1%	Added	Holders
Q3 2021	46,777	$960.0K	<0.1%	−132,576−73.9%	Reduced	Holders
Q2 2021	179,353	$3.18M	0.1%	+179,353	New	Holders