Ken Griffin
MULL

Ken Griffin’s GraniteShares 2x Long MU Daily ETF MULL Stock Holding History

Ken Griffin’s Portfolio MULL Stock Details MULL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-1,424,700
Closed -$28.3M – 15171
2026
Q1 		$6.06M Buy
1,424,700
+1,108,700
+351% +$6.93M ﹤0.01% 4029
2025
Q4 		$1.13M Buy
+316,000
New +$801K ﹤0.01% 7114

Other funds holding MULL

Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return
Optiver Holding
Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
SG
StoneX Group New York $2.48B AUM 33.54% 1-Year Est. Return
HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Ken Griffin's MULL Position: Q2 2026 in Review

Ken Griffin sold out of GraniteShares 2x Long MU Daily ETF (MULL) in Q2 2026, closing a stake of 1,424,700 shares — an estimated $28.3M sold.

Ken Griffin first reported a position in MULL in Q4 2025 and held it in 2 quarters. The position peaked at $6.06M in Q1 2026. 16 funds tracked by Wall St. Rank hold MULL as of Q2 2026.

  • Ken Griffin reported no remaining GraniteShares 2x Long MU Daily ETF position as of Q2 2026 after selling out during the quarter.
  • Ken Griffin sold 1,424,700 GraniteShares 2x Long MU Daily ETF shares in Q2 2026, an estimated $28.3M.
  • Ken Griffin first reported a position in GraniteShares 2x Long MU Daily ETF in Q4 2025 and held it in 2 quarters.
  • Ken Griffin's GraniteShares 2x Long MU Daily ETF position peaked at $6.06M in Q1 2026.
  • 16 funds tracked by Wall St. Rank held GraniteShares 2x Long MU Daily ETF as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.