Group One Trading’s Carbo Ceramics Inc. CRR Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2019 Q4	–	Sell	-11,000	Closed	-$26K	–	6727
2019 Q3	$26K	Sell	11,000 -79,205	-88%	-$127K	﹤0.01%	4279
2019 Q2	$122K	Sell	90,205 -101,848	-53%	-$225K	0.01%	3198
2019 Q1	$672K	Buy	192,053 +68,934	+56%	+$289K	0.08%	1717
2018 Q4	$428K	Buy	123,119 +74,145	+151%	+$370K	0.04%	2087
2018 Q3	$355K	Buy	48,974 +28,064	+134%	+$246K	0.03%	2575
2018 Q2	$192K	Sell	20,910 -10,319	-33%	-$92.6K	0.01%	3081
2018 Q1	$226K	Sell	31,229 -13,127	-30%	-$113K	0.02%	2702
2017 Q4	$452K	Sell	44,356 -15,786	-26%	-$140K	0.02%	2330
2017 Q3	$519K	Sell	60,142 -20,731	-26%	-$146K	0.03%	2029
2017 Q2	$554K	Buy	80,873 +76,503	+1,751%	+$628K	0.04%	1904
2017 Q1	$57K	Sell	4,370 -55,112	-93%	-$705K	﹤0.01%	3322
2016 Q4	$622K	Sell	59,482 -21,229	-26%	-$189K	0.04%	1637
2016 Q3	$883K	Buy	80,711 +25,261	+46%	+$324K	0.07%	1357
2016 Q2	$726K	Buy	55,450 +6,008	+12%	+$80.9K	0.07%	1451
2016 Q1	$702K	Buy	+49,442	New	+$853K	0.08%	1446
2015 Q1	–	Sell	-13,186	Closed	-$462K	–	5747
2014 Q4	$528K	Sell	13,186 -20,538	-61%	-$958K	0.05%	1508
2014 Q3	$2M	Buy	33,724 +29,748	+748%	+$3.39M	0.17%	690
2014 Q2	$613K	Sell	3,976 -7,005	-64%	-$965K	0.06%	1490
2014 Q1	$1.51M	Sell	10,981 -10,795	-50%	-$1.28M	0.16%	793
2013 Q4	$2.54M	Buy	+21,776	New	+$2.48M	0.27%	518
2013 Q3	–	Sell	-23,262	Closed	-$1.98M	–	6142
2013 Q2	$1.57M	Buy	+23,262	New	+$1.72M	0.24%	555

Other funds holding CRR