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 		$11.2K Buy
+100
New +$12.1K ﹤0.01% 7259
2025
Q4 		– Sell
-64,900
Closed -$6.15M – 9930
2025
Q3 		$6.15M Buy
64,900
+50,800
+360% +$4.04M ﹤0.01% 1286
2025
Q2 		$1.06M Buy
14,100
+1,600
+13% +$90.9K ﹤0.01% 2720
2025
Q1 		$632K Sell
12,500
-2,300
-16% -$124K ﹤0.01% 3141
2024
Q4 		$799K Buy
14,800
+2,600
+21% +$146K ﹤0.01% 3064
2024
Q3 		$741K Sell
12,200
-16,400
-57% -$1.08M ﹤0.01% 3205
2024
Q2 		$2.32M Sell
28,600
-107,100
-79% -$8.37M ﹤0.01% 2065
2024
Q1 		$10.4M Sell
135,700
-72,300
-35% -$4.94M 0.01% 1098
2023
Q4 		$12.7M Buy
208,000
+114,000
+121% +$6.52M 0.01% 945
2023
Q3 		$4.82M Sell
94,000
-34,600
-27% -$1.97M ﹤0.01% 1381
2023
Q2 		$9.24M Buy
128,600
+52,400
+69% +$3.35M 0.01% 940
2023
Q1 		$4.99M Sell
76,200
-26,200
-26% -$1.72M ﹤0.01% 1310
2022
Q4 		$6.65M Buy
102,400
+101,100
+7,777% +$6.2M 0.01% 1065
2022
Q3 		$84K Buy
1,300
+1,000
+333% +$78.4K ﹤0.01% 5761
2022
Q2 		$25K Sell
300
-100
-25% -$8.42K ﹤0.01% 7352
2022
Q1 		$26K Sell
400
-5,400
-93% -$421K ﹤0.01% 7947
2021
Q4 		$551K Sell
5,800
-51,800
-90% -$3.9M ﹤0.01% 3660
2021
Q3 		$3.58M Hold
57,600
– – ﹤0.01% 1503
2021
Q2 		$3.69M Buy
57,600
+57,159
+12,961% +$3.76M ﹤0.01% 1466
2021
Q1 		$2.62M Sell
441
-547
-55% -$31.1K ﹤0.01% 1335
2020
Q4 		$4.76M Buy
988
+981
+14,014% +$40.1K 0.01% 1023
2020
Q3 		$26K Sell
7
-1
-13% -$40 ﹤0.01% 6190
2020
Q2 		$39K Sell
8
-79
-91% -$3.5K ﹤0.01% 5704
2020
Q1 		$318K Buy
87
+78
+867% +$3.37K ﹤0.01% 3087
2019
Q4 		$45K Sell
9
-21
-70% -$901 ﹤0.01% 5294
2019
Q3 		$106K Buy
30
+12
+67% +$435 ﹤0.01% 4270
2019
Q2 		$79K Buy
18
+13
+260% +$522 ﹤0.01% 4433
2019
Q1 		$19K Hold
5
– – ﹤0.01% 5755
2018
Q4 		$17K Sell
5
-7
-58% -$274 ﹤0.01% 5471
2018
Q3 		$64K Buy
12
+9
+300% +$498 ﹤0.01% 4916
2018
Q2 		$15K Buy
+3
New +$147 ﹤0.01% 6088
2017
Q3 		– Sell
-42
Closed -$2K – 6566
2017
Q2 		$2K Sell
42
-82
-66% -$4.06K ﹤0.01% 5333
2017
Q1 		$3K Buy
124
+121
+4,033% +$5.15K ﹤0.01% 5058
2016
Q4 		$2K Sell
3
-9
-75% -$411 ﹤0.01% 5120
2016
Q3 		$3K Sell
12
-20
-63% -$1.04K ﹤0.01% 4732
2016
Q2 		$4K Buy
32
+28
+700% +$1.18K ﹤0.01% 4472
2016
Q1 		$1K Hold
4
– – ﹤0.01% 5228
2015
Q4 		$1K Buy
+4
New +$125 ﹤0.01% 4991
2015
Q3 		– Sell
-6
Closed -$2K – 6126
2015
Q2 		$2K Sell
6
-22
-79% -$717 ﹤0.01% 4352
2015
Q1 		$7K Buy
28
+16
+133% +$437 ﹤0.01% 3242
2014
Q4 		$1K Buy
+12
New +$288 ﹤0.01% 4258

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.