Jane Street’s Silicon Motion SIMO Stock Holding History

Jane Street’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	-36,410	Closed	-$8.44M	–	12978
2026 Q1	$4.09M	Sell	36,410 -42,980	-54%	-$5.22M	﹤0.01%	3811
2025 Q4	$7.36M	Buy	+79,390	New	+$7.29M	﹤0.01%	2699
2025 Q1	–	Sell	-23,199	Closed	-$1.25M	–	10507
2024 Q4	$1.25M	Buy	+23,199	New	+$1.3M	﹤0.01%	4961
2024 Q3	–	Sell	-46,231	Closed	-$3.05M	–	10328
2024 Q2	$3.74M	Buy	46,231 +40,202	+667%	+$3.14M	﹤0.01%	3429
2024 Q1	$464K	Sell	6,029 -230,311	-97%	-$15.7M	﹤0.01%	6805
2023 Q4	$14.5M	Buy	236,340 +218,767	+1,245%	+$12.5M	﹤0.01%	1565
2023 Q3	$901K	Sell	17,573 -55,264	-76%	-$3.14M	﹤0.01%	5337
2023 Q2	$5.23M	Buy	+72,837	New	+$4.66M	﹤0.01%	2669
2023 Q1	–	Sell	-7,677	Closed	-$504K	–	9837
2022 Q4	$499K	Sell	7,677 -63,621	-89%	-$3.9M	﹤0.01%	6152
2022 Q3	$4.65M	Buy	71,298 +57,614	+421%	+$4.52M	﹤0.01%	2736
2022 Q2	$1.15M	Sell	13,684 -17,033	-55%	-$1.43M	﹤0.01%	5236
2022 Q1	$2.05M	Sell	30,717 -40,922	-57%	-$3.19M	﹤0.01%	4703
2021 Q4	$6.81M	Buy	71,639 +42,097	+142%	+$3.17M	﹤0.01%	2393
2021 Q3	$2.04M	Buy	29,542 +14,727	+99%	+$1.04M	﹤0.01%	4433
2021 Q2	$950K	Sell	14,815 -40,508	-73%	-$2.66M	﹤0.01%	5952
2021 Q1	$3.29M	Buy	55,323 +27,748	+101%	+$1.58M	﹤0.01%	3077
2020 Q4	$1.33M	Buy	+27,575	New	+$1.13M	﹤0.01%	4208
2020 Q3	–	Sell	-39,959	Closed	-$1.6M	–	7844
2020 Q2	$1.95M	Buy	+39,959	New	+$1.77M	﹤0.01%	3105
2019 Q3	–	Sell	-5,172	Closed	-$230K	–	5683
2019 Q2	$230K	Buy	+5,172	New	+$208K	﹤0.01%	4546
2018 Q4	–	Sell	-7,691	Closed	-$413K	–	5625
2018 Q3	$413K	Buy	+7,691	New	+$426K	﹤0.01%	3831
2017 Q1	–	Sell	-9,623	Closed	-$409K	–	4624
2016 Q4	$409K	Buy	+9,623	New	+$439K	﹤0.01%	3053
2016 Q2	–	Sell	-6,166	Closed	-$259K	–	4539
2016 Q1	$239K	Buy	+6,166	New	+$199K	﹤0.01%	3490
2015 Q4	–	Sell	-20,007	Closed	-$546K	–	4413
2015 Q3	$546K	Buy	20,007 +13,451	+205%	+$360K	﹤0.01%	2227
2015 Q2	$227K	Buy	+6,556	New	+$214K	﹤0.01%	3143
2014 Q4	–	Sell	-10,215	Closed	-$275K	–	2986
2014 Q3	$275K	Sell	10,215 -175,650	-95%	-$4.41M	﹤0.01%	1946
2014 Q2	$3.8M	Buy	+185,865	New	+$3.17M	0.05%	318
2014 Q1	–	Sell	-17,910	Closed	-$253K	–	3028
2013 Q4	$253K	Buy	17,910 +4,600	+35%	+$62.7K	﹤0.01%	1807
2013 Q3	$174K	Buy	+13,310	New	+$150K	﹤0.01%	2461

Other funds holding SIMO

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

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

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 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

Jane Street's SIMO Position: Q2 2026 in Review

Jane Street sold out of Silicon Motion (SIMO) in Q2 2026, closing a stake of 36,410 shares — an estimated $8.44M sold.

Jane Street first reported a position in SIMO in Q3 2013 and held it in 28 quarters. The position peaked at $14.5M in Q4 2023. 385 funds tracked by Wall St. Rank hold SIMO as of Q2 2026.

Jane Street reported no remaining Silicon Motion position as of Q2 2026 after selling out during the quarter.
Jane Street sold 36,410 Silicon Motion shares in Q2 2026, an estimated $8.44M.
Jane Street first reported a position in Silicon Motion in Q3 2013 and held it in 28 quarters.
Jane Street's Silicon Motion position peaked at $14.5M in Q4 2023.
385 funds tracked by Wall St. Rank held Silicon Motion as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.