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
2024 Q4	–	Sell	-100,000	Closed	-$467K	–	10150
2024 Q3	$467K	Buy	+100,000	New	+$486K	﹤0.01%	7306
2022 Q4	–	Sell	-12,100	Closed	-$124K	–	9771
2022 Q3	$124K	Sell	12,100 -70,200	-85%	-$921K	﹤0.01%	8529
2022 Q2	$1.2M	Sell	82,300 -8,500	-9%	-$146K	﹤0.01%	5142
2022 Q1	$1.53M	Buy	90,800 +3,300	+4%	+$59.3K	﹤0.01%	5254
2021 Q4	$1.83M	Buy	87,500 +27,800	+47%	+$514K	﹤0.01%	4650
2021 Q3	$1.06M	Sell	59,700 -66,300	-53%	-$1.32M	﹤0.01%	5800
2021 Q2	$3.01M	Sell	126,000 -142,300	-53%	-$3.49M	﹤0.01%	3568
2021 Q1	$6.68M	Buy	+268,300	New	+$5.26M	﹤0.01%	2006
2019 Q1	–	Sell	-100,000	Closed	-$621K	–	5403
2018 Q4	$621K	Buy	+100,000	New	+$779K	﹤0.01%	3185
2017 Q3	–	Sell	-45,600	Closed	-$447K	–	4860
2017 Q2	$447K	Sell	45,600 -300,000	-87%	-$2.68M	﹤0.01%	3169
2017 Q1	$3.3M	Buy	+345,600	New	+$2.72M	0.01%	969

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.