Institutions Holding Call Options on Riot Blockchain, Inc. (RIOT)
This table provides information about the call option holders of Riot Blockchain, Inc. (RIOT). We have compiled data on the institutions that hold call options on the stock, with a total of 36.5 Million call options outstanding, which have been reported (via 13F filing form) to have a value of $418 Million at the end of the reported quarter. These call option holders have the right, but not the obligation, to buy AAPL shares at a specified price within a certain time frame.
| Holding | Report Date | calls Held | Holding Value (Reported) | Last Trade | Trade History |
|---|---|---|---|---|---|
|
Susquehanna International Group, LLP
Bala Cynwyd, PA |
Aug 14, 2025 Q2 2025 |
10,324,300
calls
|
$118 Million
0.02% of portfolio
|
N/A
|
|
|
Ken Griffin
Citadel Advisors LLC | Chicago, Il
|
Aug 14, 2025 Q2 2025 |
5,408,400
calls
|
$61.9 Million
0.01% of portfolio
|
N/A
|
|
|
Barclays PLC
London, X0 |
Aug 14, 2025 Q2 2025 |
3,862,100
calls
|
$44.2 Million
0.01% of portfolio
|
N/A
|
|
|
Jane Street Group, LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
2,602,500
calls
|
$29.8 Million
0.01% of portfolio
|
N/A
|
|
|
Peak6 LLC
Chicago, IL |
Aug 13, 2025 Q2 2025 |
2,469,700
calls
|
$28.3 Million
0.06% of portfolio
|
N/A
|
|
|
Nomura Holdings Inc
Tokyo, M0 |
Aug 14, 2025 Q2 2025 |
1,588,600
calls
|
$18.2 Million
0.03% of portfolio
|
Q2 2025
Reduced 55.85%
|
|
|
Arosa Capital Management LP
Ny, NY |
Aug 14, 2025 Q2 2025 |
1,200,000
calls
|
$13.7 Million
2.55% of portfolio
|
Q2 2025
New holding
|
|
|
Wolverine Trading, LLC
Chicago, IL |
May 15, 2025 Q1 2025 |
1,116,900
calls
|
$12.8 Million
0.01% of portfolio
|
N/A
|
|
|
Parallax Volatility Advisers, L.P.
San Francisco, CA |
Aug 14, 2025 Q2 2025 |
916,700
calls
|
$10.5 Million
0.02% of portfolio
|
N/A
|
|
|
Peak6 Investments LLC
Chicago, IL |
Nov 13, 2024 Q3 2024 |
898,100
calls
|
$10.3 Million
0.02% of portfolio
|
N/A
|
|
|
Cantor Fitzgerald, L. P.
New York, NY |
Aug 14, 2025 Q2 2025 |
562,000
calls
|
$6.43 Million
0.01% of portfolio
|
N/A
|
|
|
Hidden Lake Asset Management LP
New York, NY |
Aug 14, 2025 Q2 2025 |
460,000
calls
|
$5.26 Million
1.82% of portfolio
|
Q2 2025
New holding
|
|
|
Sig Brokerage, LP
Bala Cynwyd, PA |
Aug 14, 2025 Q2 2025 |
443,500
calls
|
$5.07 Million
0.13% of portfolio
|
Q2 2025
Added 2856.67%
|
|
|
Israel Englander
Millennium Management LLC | New York, Ny
|
Aug 14, 2025 Q2 2025 |
415,000
calls
|
$4.75 Million
0.0% of portfolio
|
Q2 2025
Added 69.73%
|
|
|
Drw Securities, L.L.C.
Chicago, IL |
Nov 14, 2022 Q3 2022 |
406,400
calls
|
$4.65 Million
0.06% of portfolio
|
N/A
|
|
|
Balyasny Asset Management LLC
Chicago, IL |
Aug 14, 2025 Q2 2025 |
395,400
calls
|
$4.52 Million
0.01% of portfolio
|
Q2 2025
Added 44.99%
|
|
|
Walleye Trading LLC
Plymouth, MN |
Aug 13, 2025 Q2 2025 |
366,600
calls
|
$4.19 Million
0.01% of portfolio
|
N/A
|
|
|
Qube Research & Technologies LTD
London, X0 |
Aug 14, 2025 Q2 2025 |
352,100
calls
|
$4.03 Million
0.0% of portfolio
|
N/A
|
|
|
Ubs Group Ag
|
Aug 14, 2025 Q2 2025 |
315,500
calls
|
$3.61 Million
0.0% of portfolio
|
Q2 2025
New holding
|
|
|
Brevan Howard Capital Management LP
St. Helier, Y9 |
Aug 14, 2025 Q2 2025 |
300,000
calls
|
$3.43 Million
0.02% of portfolio
|
Q2 2025
New holding
|
|
|
Cubist Systematic Strategies, LLC
Stamford, CT |
Aug 14, 2025 Q2 2025 |
283,600
calls
|
$3.24 Million
0.02% of portfolio
|
N/A
|
|
|
Citigroup Inc
|
Aug 11, 2025 Q2 2025 |
273,700
calls
|
$3.13 Million
0.0% of portfolio
|
Q2 2025
Reduced 8.77%
|
|
|
Shay Capital LLC
New York, NY |
Aug 14, 2025 Q2 2025 |
210,000
calls
|
$2.4 Million
0.33% of portfolio
|
N/A
|
|
|
Advent Capital Management
New York, NY |
Aug 13, 2025 Q2 2025 |
200,000
calls
|
$2.29 Million
1.16% of portfolio
|
Q2 2025
New holding
|
|
|
Exodus Point Capital Management, LP
New York, NY |
Aug 13, 2025 Q2 2025 |
200,000
calls
|
$2.29 Million
0.02% of portfolio
|
Q2 2025
Added 100.0%
|