Walleye Trading
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Walleye Trading’s Quantum-Si Incorporated QSI Stock Holding History

Walleye Trading’s Portfolio QSI Stock Details QSI Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-448
Closed -$347 – 4372
2026
Q1 		$347 Buy
+448
New +$464 ﹤0.01% 4041

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NAMA
Nikko Asset Management Americas New York $7.75B AUM 33.73% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $175B AUM 40.63% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
AQR Capital Management
AQR Capital Management Greenwich, Connecticut $287B AUM 42.33% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return

Walleye Trading's QSI Position: Q2 2026 in Review

Walleye Trading sold out of Quantum-Si Incorporated (QSI) in Q2 2026, closing a stake of 448 shares — an estimated $347 sold.

Walleye Trading first reported a position in QSI in Q1 2026 and held it in 1 quarter. The position peaked at $347 in Q1 2026. 141 funds tracked by Wall St. Rank hold QSI as of Q2 2026.

  • Walleye Trading reported no remaining Quantum-Si Incorporated position as of Q2 2026 after selling out during the quarter.
  • Walleye Trading sold 448 Quantum-Si Incorporated shares in Q2 2026, an estimated $347.
  • Walleye Trading first reported a position in Quantum-Si Incorporated in Q1 2026 and held it in 1 quarter.
  • Walleye Trading's Quantum-Si Incorporated position peaked at $347 in Q1 2026.
  • 141 funds tracked by Wall St. Rank held Quantum-Si Incorporated as of Q2 2026.

Based on Walleye Trading's 13F filing for Q2 2026, filed 3 Aug 2026.