SIMPLEX TRADING, LLC - DOLBY LABORATORIES INC ownership

DOLBY LABORATORIES INC's ticker is and the CUSIP is 25659T957. A total of 3 filers reported holding DOLBY LABORATORIES INC in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.

Quarter-by-quarter ownership
SIMPLEX TRADING, LLC ownership history of DOLBY LABORATORIES INC
ValueSharesWeighting
Q3 2023$293
-96.3%
3,700
-96.1%
0.00%
-100.0%
Q2 2023$7,941
-6.5%
94,900
-4.5%
0.01%0.0%
Q1 2023$8,490
+666.9%
99,400
+533.1%
0.01%
+600.0%
Q4 2022$1,107
-99.9%
15,700
-16.0%
0.00%0.0%
Q3 2022$1,218,000
+2800.0%
18,700
+3016.7%
0.00%
Q2 2022$42,000
+82.6%
600
+100.0%
0.00%
Q1 2022$23,000
-17.9%
3000.0%0.00%
Q4 2021$28,000
-94.4%
300
-94.0%
0.00%
Q3 2021$498,000
+1.4%
5,0000.0%0.00%
Q2 2021$491,000
-62.6%
5,000
+3659.4%
0.00%
-100.0%
Q1 2021$1,312,000
+3352.6%
133
+3225.0%
0.00%
Q4 2020$38,000
-51.9%
4
-66.7%
0.00%
Q3 2020$79,000
+203.8%
12
+200.0%
0.00%
Q2 2020$26,000
-18.8%
4
-33.3%
0.00%
Q1 2020$32,000
+18.5%
6
+50.0%
0.00%
Q4 2019$27,000
+8.0%
40.0%0.00%
Q3 2019$25,000
-67.5%
4
-66.7%
0.00%
Q2 2019$77,000
+541.7%
12
+500.0%
0.00%
Q1 2019$12,000
+500.0%
2
-92.3%
0.00%
Q3 2017$2,000
-33.3%
26
-10.3%
0.00%
Q1 2017$3,000
-50.0%
29
-46.3%
0.00%
Q4 2016$6,000
+500.0%
54
+260.0%
0.00%
Q3 2016$1,0000.0%15
-31.8%
0.00%
Q2 2016$1,000
-96.0%
22
-12.0%
0.00%
-100.0%
Q3 2015$25,00025
+150.0%
0.00%
Q2 2015$010
+150.0%
0.00%
Q1 2015$040.00%
Other shareholders
DOLBY LABORATORIES INC shareholders Q1 2021
NameSharesValueWeighting ↓
Twin Tree Management, LP 23,600$1,870,5360.00%
CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0$00.00%
GROUP ONE TRADING, L.P. 1,200$95,1120.00%
SIMPLEX TRADING, LLC 3,700$2930.00%
JANE STREET GROUP, LLC 8,600$681,6360.00%
View complete list of DOLBY LABORATORIES INC shareholders