Jane Street’s Magnachip Semiconductor MX Stock Holding History

Jane Street’s Portfolio MX Stock Details MX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2023 Q1	–	Sell	-164,000	Closed	-$1.54M	–	9602
2022 Q4	$1.54M	Sell	164,000 -2,500	-2%	-$24.2K	﹤0.01%	4278
2022 Q3	$1.71M	Sell	166,500 -164,700	-50%	-$2.16M	﹤0.01%	4476
2022 Q2	$4.81M	Buy	331,200 +117,000	+55%	+$2.01M	﹤0.01%	2709
2022 Q1	$3.62M	Buy	214,200 +111,700	+109%	+$2.01M	﹤0.01%	3599
2021 Q4	$2.15M	Sell	102,500 -9,200	-8%	-$170K	﹤0.01%	4345
2021 Q3	$1.98M	Buy	111,700 +10,300	+10%	+$205K	﹤0.01%	4495
2021 Q2	$2.42M	Sell	101,400 -351,200	-78%	-$8.61M	﹤0.01%	3961
2021 Q1	$11.3M	Buy	+452,600	New	+$8.88M	0.01%	1438
2020 Q4	–	Sell	-11,200	Closed	-$153K	–	7885
2020 Q3	$153K	Buy	+11,200	New	+$133K	﹤0.01%	6588
2019 Q2	–	Sell	-68,400	Closed	-$506K	–	5530
2019 Q1	$506K	Hold	68,400	–	–	﹤0.01%	3671
2018 Q4	$425K	Buy	+68,400	New	+$533K	﹤0.01%	3641

Other funds holding MX

OCM

Oaktree Capital Management Los Angeles, California $6.56B AUM 42.97% 1-Year Est. Return

FCM

FourWorld Capital Management New York $196M AUM 42.39% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

Immersion Aventura, Florida $145M AUM 17.41% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

Clearline Capital New York $1.93B AUM 38.13% 1-Year Est. Return

FWSM

First Wilshire Securities Management Pasadena, California $444M AUM 42.88% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

Two Sigma Investments New York $124B AUM 33.93% 1-Year Est. Return

Jane Street's MX Position: Q1 2026 in Review

Jane Street reduced its Magnachip Semiconductor (MX) stake by 52% in Q1 2026, selling an estimated $155K and leaving 49,769 shares worth $139K. The position accounts for ﹤0.01% of the portfolio, ranked #10443.

Jane Street first reported a position in MX in Q2 2013 and has held it in 27 quarters since. The position peaked at $2.09M in Q2 2021. 71 funds tracked by Wall St. Rank hold MX as of Q1 2026.

Jane Street held 49,769 shares of Magnachip Semiconductor worth $139K as of Q1 2026.
Jane Street sold 54,459 Magnachip Semiconductor shares in Q1 2026, an estimated $155K.
Magnachip Semiconductor made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10443 holding.
Jane Street first reported a position in Magnachip Semiconductor in Q2 2013 and has held it in 27 quarters since.
Jane Street's Magnachip Semiconductor position peaked at $2.09M in Q2 2021.
71 funds tracked by Wall St. Rank held Magnachip Semiconductor as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.