Jane Street’s MGIC Investment MTG Stock Holding History

Jane Street’s Portfolio MTG Stock Details MTG Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q3	–	Sell	-14,700	Closed	-$409K	–	11418
2025 Q2	$409K	Buy	+14,700	New	+$378K	﹤0.01%	7309
2023 Q1	–	Sell	-20,800	Closed	-$270K	–	9597
2022 Q4	$270K	Sell	20,800 -7,300	-26%	-$96K	﹤0.01%	7193
2022 Q3	$360K	Buy	+28,100	New	+$393K	﹤0.01%	7280
2022 Q2	–	Sell	-29,600	Closed	-$401K	–	10441
2022 Q1	$401K	Sell	29,600 -346,900	-92%	-$5.2M	﹤0.01%	7885
2021 Q4	$5.43M	Buy	376,500 +348,400	+1,240%	+$5.28M	﹤0.01%	2733
2021 Q3	$420K	Buy	28,100 +2,900	+12%	+$42K	﹤0.01%	7596
2021 Q2	$343K	Sell	25,200 -69,800	-73%	-$1M	﹤0.01%	7923
2021 Q1	$1.32M	Buy	95,000 +40,700	+75%	+$519K	﹤0.01%	4911
2020 Q4	$681K	Buy	54,300 +15,000	+38%	+$170K	﹤0.01%	5270
2020 Q3	$348K	Buy	+39,300	New	+$335K	﹤0.01%	5671
2017 Q2	–	Sell	-19,300	Closed	-$196K	–	4680
2017 Q1	$196K	Buy	+19,300	New	+$203K	﹤0.01%	3873
2016 Q1	–	Sell	-14,400	Closed	-$127K	–	4454
2015 Q4	$127K	Buy	+14,400	New	+$135K	﹤0.01%	3745

Other funds holding MTG

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

AQR Capital Management Greenwich, Connecticut $218B AUM 29.41% 1-Year Est. Return

LSV Asset Management Chicago, Illinois $46.4B AUM 27.74% 1-Year Est. Return

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

American Century Companies Kansas City, Missouri $194B AUM 35% 1-Year Est. Return

Allianz Asset Management Munich, Germany $95.4B AUM 38.74% 1-Year Est. Return

Jane Street's MTG Position: Q1 2026 in Review

Jane Street reduced its MGIC Investment (MTG) stake by 53% in Q1 2026, selling an estimated $24.8M and leaving 812,438 shares worth $21.3M. The position accounts for ﹤0.01% of the portfolio, ranked #1729.

Jane Street first reported a position in MTG in Q4 2013 and has held it in 40 quarters since. The position peaked at $50.8M in Q4 2025. 509 funds tracked by Wall St. Rank hold MTG as of Q1 2026.

Jane Street held 812,438 shares of MGIC Investment worth $21.3M as of Q1 2026.
Jane Street sold 927,439 MGIC Investment shares in Q1 2026, an estimated $24.8M.
MGIC Investment made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #1729 holding.
Jane Street first reported a position in MGIC Investment in Q4 2013 and has held it in 40 quarters since.
Jane Street's MGIC Investment position peaked at $50.8M in Q4 2025.
509 funds tracked by Wall St. Rank held MGIC Investment as of Q1 2026.

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