Simplex Trading
SIMO icon

Simplex Trading’s Silicon Motion SIMO Stock Holding History

Simplex Trading’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
Q1 		$5.29M Buy
+47,100
New +$5.72M ﹤0.01% 1080
2025
Q4 		– Sell
-46,000
Closed -$4.36M – 9929
2025
Q3 		$4.36M Buy
46,000
+41,900
+1,022% +$3.33M ﹤0.01% 1599
2025
Q2 		$308K Sell
4,100
-28,500
-87% -$1.62M ﹤0.01% 4035
2025
Q1 		$1.65M Sell
32,600
-16,300
-33% -$882K ﹤0.01% 2222
2024
Q4 		$2.64M Buy
48,900
+13,400
+38% +$750K ﹤0.01% 1965
2024
Q3 		$2.16M Buy
35,500
+4,100
+13% +$270K ﹤0.01% 2213
2024
Q2 		$2.54M Sell
31,400
-15,900
-34% -$1.24M ﹤0.01% 1989
2024
Q1 		$3.64M Sell
47,300
-48,900
-51% -$3.34M ﹤0.01% 1862
2023
Q4 		$5.89M Sell
96,200
-127,300
-57% -$7.28M ﹤0.01% 1426
2023
Q3 		$11.5M Buy
223,500
+83,100
+59% +$4.73M 0.01% 859
2023
Q2 		$10.1M Buy
140,400
+122,600
+689% +$7.84M 0.01% 885
2023
Q1 		$1.17M Sell
17,800
-68,800
-79% -$4.52M ﹤0.01% 2451
2022
Q4 		$5.63M Buy
86,600
+27,700
+47% +$1.7M 0.01% 1151
2022
Q3 		$3.84M Sell
58,900
-5,900
-9% -$462K ﹤0.01% 1396
2022
Q2 		$5.42M Buy
64,800
+60,700
+1,480% +$5.11M 0.01% 1103
2022
Q1 		$273K Sell
4,100
-18,000
-81% -$1.4M ﹤0.01% 4682
2021
Q4 		$2.1M Buy
22,100
+20,500
+1,281% +$1.54M ﹤0.01% 1991
2021
Q3 		$99K Hold
1,600
– – ﹤0.01% 6637
2021
Q2 		$102K Buy
1,600
+1,535
+2,362% +$101K ﹤0.01% 6706
2021
Q1 		$386K Sell
65
-40
-38% -$2.28K ﹤0.01% 3760
2020
Q4 		$505K Buy
105
+92
+708% +$3.76K ﹤0.01% 3408
2020
Q3 		$49K Sell
13
-89
-87% -$3.57K ﹤0.01% 5626
2020
Q2 		$497K Buy
102
+90
+750% +$3.99K ﹤0.01% 2920
2020
Q1 		$43K Sell
12
-3
-20% -$130 ﹤0.01% 5296
2019
Q4 		$76K Sell
15
-139
-90% -$5.96K ﹤0.01% 4806
2019
Q3 		$544K Buy
154
+129
+516% +$4.67K ﹤0.01% 2533
2019
Q2 		$110K Sell
25
-23
-48% -$923 ﹤0.01% 4085
2019
Q1 		$190K Buy
48
+47
+4,700% +$1.83K ﹤0.01% 3678
2018
Q4 		$3K Sell
1
-38
-97% -$1.49K ﹤0.01% 6460
2018
Q3 		$209K Buy
39
+26
+200% +$1.44K ﹤0.01% 3595
2018
Q2 		$68K Buy
+13
New +$638 ﹤0.01% 4735
2018
Q1 		– Sell
-10
Closed -$1K – 6789
2017
Q4 		$1K Sell
10
-13
-57% -$658 ﹤0.01% 5621
2017
Q3 		$1K Sell
23
-94
-80% -$4.17K ﹤0.01% 5564
2017
Q2 		$15K Buy
117
+28
+31% +$1.39K ﹤0.01% 3593
2017
Q1 		$15K Buy
89
+35
+65% +$1.49K ﹤0.01% 3586
2016
Q4 		$3K Sell
54
-173
-76% -$7.9K ﹤0.01% 4801
2016
Q3 		$213K Buy
227
+181
+393% +$9.44K 0.01% 993
2016
Q2 		$8K Sell
46
-198
-81% -$8.31K ﹤0.01% 3825
2016
Q1 		$144K Buy
244
+219
+876% +$7.07K 0.01% 1077
2015
Q4 		$4K Sell
25
-183
-88% -$5.73K ﹤0.01% 4063
2015
Q3 		$26K Buy
208
+149
+253% +$3.99K ﹤0.01% 2544
2015
Q2 		$39K Buy
+59
New +$1.92K ﹤0.01% 1891
2015
Q1 		– Sell
-28
Closed -$8K – 5522
2014
Q4 		$8K Buy
+28
New +$672 ﹤0.01% 2756

Other funds holding SIMO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
HRCM
Hawk Ridge Capital Management Los Angeles, California $2.75B AUM 20.09% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $30.6B AUM 57.44% 1-Year Est. Return
Lazard Asset Management
Lazard Asset Management New York $60.8B AUM 22.47% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return
WHCM
Wolf Hill Capital Management Greenwich, Connecticut $1.03B AUM 80.44% 1-Year Est. Return
Man Group
Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return
ACM
Analog Century Management New York $2.09B AUM 186.85% 1-Year Est. Return

Simplex Trading's SIMO Position: Q3 2025 in Review

Simplex Trading sold out of Silicon Motion (SIMO) in Q3 2025, closing a stake of 221 shares — an estimated $17.6K sold.

Simplex Trading first reported a position in SIMO in Q1 2015 and held it in 27 quarters. The position peaked at $1.8M in Q4 2020. 219 funds tracked by Wall St. Rank hold SIMO as of Q3 2025.

  • Simplex Trading reported no remaining Silicon Motion position as of Q3 2025 after selling out during the quarter.
  • Simplex Trading sold 221 Silicon Motion shares in Q3 2025, an estimated $17.6K.
  • Simplex Trading first reported a position in Silicon Motion in Q1 2015 and held it in 27 quarters.
  • Simplex Trading's Silicon Motion position peaked at $1.8M in Q4 2020.
  • 219 funds tracked by Wall St. Rank held Silicon Motion as of Q3 2025.

Based on Simplex Trading's 13F filing for Q3 2025, filed 12 Nov 2025.