XT
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XTX Topco’s Silicon Motion SIMO Stock Holding History

XTX Topco’s Portfolio SIMO Stock Details SIMO Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-12,971
Closed -$1.46M – 4657
2026
Q1 		$1.46M Sell
12,971
-18,884
-59% -$2.29M 0.03% 1110
2025
Q4 		$2.95M Buy
+31,855
New +$2.92M 0.08% 341
2025
Q3 		– Sell
-23,678
Closed -$1.78M – 3205
2025
Q2 		$1.78M Buy
+23,678
New +$1.34M 0.07% 381
2024
Q4 		– Sell
-4,715
Closed -$286K – 2873
2024
Q3 		$286K Buy
4,715
+2,003
+74% +$132K 0.02% 1218
2024
Q2 		$220K Buy
+2,712
New +$212K 0.02% 1176
2024
Q1 		– Sell
-7,172
Closed -$439K – 2278
2023
Q4 		$439K Buy
7,172
+1,229
+21% +$70.3K 0.1% 333
2023
Q3 		$305K Buy
5,943
+2,838
+91% +$161K 0.05% 719
2023
Q2 		$223K Buy
+3,105
New +$199K 0.04% 939

Other funds holding SIMO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Alkeon Capital Management
Alkeon Capital Management New York $74.1B AUM 71.18% 1-Year Est. Return
HRCM
Hawk Ridge Capital Management Los Angeles, California $3.12B AUM 53.42% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
PCH
Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return
DCM
Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return
Two Sigma Investments
Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.2B AUM 137.35% 1-Year Est. Return

XTX Topco's SIMO Position: Q2 2026 in Review

XTX Topco sold out of Silicon Motion (SIMO) in Q2 2026, closing a stake of 12,971 shares — an estimated $1.46M sold.

XTX Topco first reported a position in SIMO in Q2 2023 and held it in 8 quarters. The position peaked at $2.95M in Q4 2025. 385 funds tracked by Wall St. Rank hold SIMO as of Q2 2026.

  • XTX Topco reported no remaining Silicon Motion position as of Q2 2026 after selling out during the quarter.
  • XTX Topco sold 12,971 Silicon Motion shares in Q2 2026, an estimated $1.46M.
  • XTX Topco first reported a position in Silicon Motion in Q2 2023 and held it in 8 quarters.
  • XTX Topco's Silicon Motion position peaked at $2.95M in Q4 2025.
  • 385 funds tracked by Wall St. Rank held Silicon Motion as of Q2 2026.

Based on XTX Topco's 13F filing for Q2 2026, filed 14 Aug 2026.