Ken Griffin
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Ken Griffin’s YieldMax Innovation Option Income Strategy ETF OARK Stock Holding History

Ken Griffin’s Portfolio OARK Stock Details OARK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q3 		– Sell
-2,380
Closed -$105K – 13709
2025
Q2 		$105K Sell
2,380
-240
-9% -$9.37K ﹤0.01% 11303
2025
Q1 		$100K Buy
2,620
+2,260
+628% +$109K ﹤0.01% 11466
2024
Q4 		$18.3K Sell
360
-1,460
-80% -$77.2K ﹤0.01% 13237
2024
Q3 		$96.4K Sell
1,820
-340
-16% -$17.7K ﹤0.01% 11158
2024
Q2 		$117K Buy
+2,160
New +$123K ﹤0.01% 10698

Other funds holding OARK

TI
Tidal Investments Milwaukee, Wisconsin $47.4B AUM 59.58% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return
HPBT
Hickory Point Bank & Trust Decatur, Illinois $165M AUM 27.01% 1-Year Est. Return
RFP
Root Financial Partners Encinitas, California $2.57B AUM 21.7% 1-Year Est. Return
Wells Fargo
Wells Fargo San Francisco, California $530B AUM 22.01% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Ken Griffin's OARK Position: Q1 2026 in Review

Ken Griffin reduced its YieldMax Innovation Option Income Strategy ETF (OARK) stake by 36% in Q1 2026, selling an estimated $206K and leaving 10,748 shares worth $328K. The position accounts for ﹤0.01% of the portfolio, ranked #10282.

Ken Griffin first reported a position in OARK in Q3 2023 and has held it in 8 quarters since. The position peaked at $613K in Q4 2025. 9 funds tracked by Wall St. Rank hold OARK as of Q1 2026.

  • Ken Griffin held 10,748 shares of YieldMax Innovation Option Income Strategy ETF worth $328K as of Q1 2026.
  • Ken Griffin sold 6,122 YieldMax Innovation Option Income Strategy ETF shares in Q1 2026, an estimated $206K.
  • YieldMax Innovation Option Income Strategy ETF made up ﹤0.01% of Ken Griffin's portfolio in Q1 2026, its #10282 holding.
  • Ken Griffin first reported a position in YieldMax Innovation Option Income Strategy ETF in Q3 2023 and has held it in 8 quarters since.
  • Ken Griffin's YieldMax Innovation Option Income Strategy ETF position peaked at $613K in Q4 2025.
  • 9 funds tracked by Wall St. Rank held YieldMax Innovation Option Income Strategy ETF as of Q1 2026.

Based on Citadel Advisors's 13F filing for Q1 2026, filed 15 May 2026.