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Mizuho Markets Americas’s Riot Platforms RIOT Stock Holding History

Mizuho Markets Americas’s Portfolio RIOT Stock Details RIOT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$141M Buy
5,140,890
+81,232
+2% +$1.83M 2.21% 9
2026
Q1 		$62.5M Buy
5,059,658
+809,000
+19% +$12.4M 1.71% 17
2025
Q4 		$53.9M Sell
4,250,658
-2,031,041
-32% -$34.7M 1.04% 22
2025
Q3 		$120M Sell
6,281,699
-3,130,128
-33% -$43.4M 2.25% 11
2025
Q2 		$106M Sell
9,411,827
-434,734
-4% -$3.7M 3.24% 9
2025
Q1 		$70.1M Buy
9,846,561
+4,297,234
+77% +$44.6M 1.44% 19
2024
Q4 		$56.7M Buy
+5,549,327
New +$60.4M 1.01% 27

Other funds holding RIOT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $20.2B AUM 612.59% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
SV
Starboard Value New York $4.52B AUM 19.34% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

Mizuho Markets Americas's RIOT Position: Q2 2026 in Review

Mizuho Markets Americas increased its Riot Platforms (RIOT) stake by 1.6% in Q2 2026, buying an estimated $1.83M and bringing the position to 5,140,890 shares worth $141M. The position accounts for 2.21% of the portfolio, ranked #9.

Mizuho Markets Americas first reported a position in RIOT in Q4 2024 and has held it in 7 quarters since. 446 funds tracked by Wall St. Rank hold RIOT as of Q2 2026.

  • Mizuho Markets Americas held 5,140,890 shares of Riot Platforms worth $141M as of Q2 2026.
  • Mizuho Markets Americas bought 81,232 Riot Platforms shares in Q2 2026, an estimated $1.83M.
  • Riot Platforms made up 2.21% of Mizuho Markets Americas's portfolio in Q2 2026, its #9 holding.
  • Mizuho Markets Americas first reported a position in Riot Platforms in Q4 2024 and has held it in 7 quarters since.
  • 446 funds tracked by Wall St. Rank held Riot Platforms as of Q2 2026.

Based on Mizuho Markets Americas's 13F filing for Q2 2026, filed 24 Jul 2026.