Tamarack Advisers, LP - SPDR S&P 500 ETF TR ownership

SPDR S&P 500 ETF TR's ticker is and the CUSIP is 78462F953. A total of 49 filers reported holding SPDR S&P 500 ETF TR in Q2 2021. The put-call ratio across all filers is 39,547.85 and the average weighting 10.8%.

Quarter-by-quarter ownership
Tamarack Advisers, LP ownership history of SPDR S&P 500 ETF TR
ValueSharesWeighting
Q3 2023$64,122,000
+56.6%
150,000
+50.0%
41.52%
+177.5%
Q1 2023$40,939,000
+328.2%
100,000
+300.0%
14.96%
+203.9%
Q4 2022$9,560,750
+7548.6%
25,000
+900.0%
4.92%
+6643.8%
Q3 2022$125,000
-61.9%
2,500
-28.6%
0.07%
-21.5%
Q2 2021$328,000
+2.8%
3,500
+66.7%
0.09%
+43.1%
Q1 2021$319,000
-64.4%
2,100
-47.5%
0.06%
-73.9%
Q2 2020$896,000
+75.0%
4,000
-50.0%
0.25%
+112.8%
Q4 2019$512,000
-39.8%
8,000
+60.0%
0.12%
-47.1%
Q3 2019$850,000
+222.0%
5,000
+25.0%
0.22%
+176.2%
Q2 2019$264,000
-37.1%
4,0000.0%0.08%
-52.1%
Q1 2019$420,000
+42.9%
4,000
+166.7%
0.17%
+98.8%
Q3 2018$294,000
-68.6%
1,500
-75.0%
0.08%
-73.2%
Q2 2018$936,000
+875.0%
6,000
+50.0%
0.31%
+430.5%
Q3 2017$96,000
-70.6%
4,0000.0%0.06%
-68.9%
Q2 2017$326,000
-68.7%
4,000
-60.0%
0.19%
+15.9%
Q3 2016$1,040,000
+5677.8%
10,000
+900.0%
0.16%
+2633.3%
Q1 2016$18,0001,0000.01%
Other shareholders
SPDR S&P 500 ETF TR shareholders Q2 2021
NameSharesValueWeighting ↓
RIPOSTE CAPITAL LLC 1,470,000$601,803,30068.14%
AKUNA SECURITIES LLC 10,198,900$4,175,32845.60%
SABBY MANAGEMENT, LLC 1,173$48,051,44741.86%
Swan Global Investments, LLC 2,444,400$949,52037.89%
Optiver Holding B.V. 116,094,000$47,527,722,66034.80%
OnyxPoint Global Management LP 228,400$93,504,67631.15%
CAZ INVESTMENTS LP 34,500$14,12428.64%
Sender Co & Partners, Inc. 62,500$25,586,87526.94%
IMC-Chicago, LLC 54,870,500$22,463,433,99526.32%
Warberg Asset Management LLC 288,000$117,904,32023.23%
View complete list of SPDR S&P 500 ETF TR shareholders