GROUP ONE TRADING, L.P. - RESEARCH FRONTIERS INC ownership

RESEARCH FRONTIERS INC's ticker is REFR and the CUSIP is 760911107. A total of 55 filers reported holding RESEARCH FRONTIERS INC in Q4 2020. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of RESEARCH FRONTIERS INC
ValueSharesWeighting
Q3 2021$28,000
+2700.0%
11,023
+1854.4%
0.00%
Q2 2021$1,000
-96.3%
564
-94.1%
0.00%
Q1 2021$27,000
-41.3%
9,574
-42.1%
0.00%
Q4 2020$46,000
+12.2%
16,538
+8.7%
0.00%
Q3 2020$41,000
+272.7%
15,217
+479.0%
0.00%
Q2 2020$11,000
-15.4%
2,628
-51.0%
0.00%
Q1 2020$13,000
-87.7%
5,362
-84.7%
0.00%
-100.0%
Q4 2019$106,000
-47.3%
35,131
-44.1%
0.00%
-50.0%
Q3 2019$201,000
+3250.0%
62,894
+3599.6%
0.00%
Q2 2019$6,000
-40.0%
1,700
-79.7%
0.00%
Q3 2017$10,000
-9.1%
8,3750.0%0.00%
Q2 2017$11,000
+1000.0%
8,375
+1575.0%
0.00%
Q1 2017$1,0000.0%5000.0%0.00%
Q4 2016$1,0000.0%5000.0%0.00%
Q3 2016$1,0000.0%500
+129.4%
0.00%
Q1 2016$1,000
-96.9%
218
-96.3%
0.00%
Q2 2015$32,000
+45.5%
5,900
+36.5%
0.00%
Q4 2014$22,000
+214.3%
4,323
+243.9%
0.00%
Q3 2014$7,000
-89.4%
1,257
-90.2%
0.00%
-100.0%
Q1 2014$66,000
-66.8%
12,792
-62.8%
0.00%
-66.7%
Q4 2013$199,000
+804.5%
34,402
+554.5%
0.00%
Q3 2013$22,000
+37.5%
5,256
+27.4%
0.00%
Q2 2013$16,0004,1240.00%
Other shareholders
RESEARCH FRONTIERS INC shareholders Q4 2020
NameSharesValueWeighting ↓
SHUFRO ROSE & CO LLC 162,750$457,0000.04%
GSA CAPITAL PARTNERS LLP 63,841$179,0000.03%
Virtu Financial LLC 33,449$94,0000.01%
Ranch Capital Advisors Inc. 4,700$13,0000.01%
Alpha Paradigm Partners, LLC 7,989$22,0000.01%
NorthRock Partners, LLC 30,000$84,0000.01%
Kingsview Wealth Management, LLC 32,776$92,0000.01%
MERCER GLOBAL ADVISORS INC /ADV 15,500$44,0000.00%
Homrich & Berg 10,000$28,0000.00%
Schonfeld Strategic Advisors LLC 29,900$84,0000.00%
View complete list of RESEARCH FRONTIERS INC shareholders