SIMPLEX TRADING, LLC - GIBRALTAR INDS INC ownership

GIBRALTAR INDS INC's ticker is ROCK and the CUSIP is 374689107. A total of 204 filers reported holding GIBRALTAR INDS INC in Q4 2016. The put-call ratio across all filers is 0.93 and the average weighting 0.1%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of GIBRALTAR INDS INC
ValueSharesWeighting
Q1 2023$31
-99.9%
648
-46.9%
0.00%
Q1 2022$52,000
+67.7%
1,220
+156.3%
0.00%
Q4 2021$31,000
-85.1%
476
-82.5%
0.00%
Q3 2021$208,000
+0.5%
2,7140.0%0.00%
Q2 2021$207,000
+58.0%
2,714
+34.3%
0.00%
Q3 2020$131,000
-70.6%
2,021
-77.1%
0.00%
-100.0%
Q4 2019$445,000
+363.5%
8,826
+318.3%
0.00%
Q3 2019$96,000
+71.4%
2,110
+51.7%
0.00%
Q1 2019$56,000
-57.9%
1,391
-63.0%
0.00%
Q4 2018$133,000
-45.7%
3,764
-30.0%
0.00%
-100.0%
Q3 2018$245,000
+145.0%
5,377
+101.5%
0.00%
Q2 2018$100,000
-30.1%
2,669
-37.1%
0.00%
-100.0%
Q1 2018$143,000
+2760.0%
4,245
+2504.3%
0.01%
Q4 2017$5,000
-96.8%
163
-96.3%
0.00%
-100.0%
Q2 2017$155,000
+43.5%
4,350
+65.7%
0.01%
+40.0%
Q1 2017$108,000
-23.4%
2,626
-22.5%
0.01%
-37.5%
Q4 2016$141,000
+41.0%
3,390
+25.9%
0.01%
+14.3%
Q3 2016$100,000
+88.7%
2,692
+58.4%
0.01%
+75.0%
Q2 2016$53,000
+194.4%
1,700
+166.0%
0.00%
+300.0%
Q1 2016$18,000
+500.0%
639
+346.9%
0.00%
Q4 2015$3,0001430.00%
Other shareholders
GIBRALTAR INDS INC shareholders Q4 2016
NameSharesValueWeighting ↓
HCSF Management, LLC 422,404$15,059,00010.89%
Robotti & Company 105,408$3,652,0001.10%
Phocas Financial Corp. 312,304$11,134,0001.01%
Cortina Asset Management, LLC 522,131$18,614,0000.79%
RBF Capital, LLC 140,000$4,991,0000.66%
Teton Advisors, Inc. 141,000$5,027,0000.49%
Piermont Capital Management Inc. 25,795$920,0000.26%
Curi RMB Capital, LLC 218,275$7,782,0000.22%
WESTWOOD HOLDINGS GROUP INC 724,716$25,836,0000.21%
ABERDEEN ASSET MANAGEMENT PLC/UK 1,739,266$62,005,0000.21%
View complete list of GIBRALTAR INDS INC shareholders