Simplex Trading
SNDK

Simplex Trading’s Sandisk SNDK Stock Holding History

Simplex Trading’s Portfolio SNDK Stock Details SNDK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$588M Sell
258,700
-3,800
-1% -$5.42M 0.34% 38
2026
Q1 		$167M Buy
262,500
+177,900
+210% +$100M 0.11% 76
2025
Q4 		$20.1M Sell
84,600
-106,900
-56% -$21.4M 0.01% 549
2025
Q3 		$21.5M Buy
191,500
+69,600
+57% +$4.06M 0.01% 607
2025
Q2 		$5.53M Buy
121,900
+96,100
+372% +$3.68M ﹤0.01% 1271
2025
Q1 		$1.23M Buy
+25,800
New +$1.28M ﹤0.01% 2505

Other funds holding SNDK

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
CS
Clear Street New York $39.5B AUM 124.03% 1-Year Est. Return
SA
Situational Awareness San Francisco, California $20.2B AUM 612.59% 1-Year Est. Return

Simplex Trading's SNDK Position: Q2 2026 in Review

Simplex Trading increased its Sandisk (SNDK) stake by 190% in Q2 2026, buying an estimated $4.23M and bringing the position to 4,518 shares worth $10.3M. The position accounts for 0.01% of the portfolio, ranked #745.

Simplex Trading first reported a position in SNDK in Q1 2025 and has held it in 5 quarters since. The position peaked at $15.6M in Q4 2025. 1,822 funds tracked by Wall St. Rank hold SNDK as of Q2 2026.

  • Simplex Trading held 4,518 shares of Sandisk worth $10.3M as of Q2 2026.
  • Simplex Trading bought 2,960 Sandisk shares in Q2 2026, an estimated $4.23M.
  • Sandisk made up 0.01% of Simplex Trading's portfolio in Q2 2026, its #745 holding.
  • Simplex Trading first reported a position in Sandisk in Q1 2025 and has held it in 5 quarters since.
  • Simplex Trading's Sandisk position peaked at $15.6M in Q4 2025.
  • 1,822 funds tracked by Wall St. Rank held Sandisk as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.