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
2026 Q1	$2.04M	Buy	+77,900	New	+$2.08M	﹤0.01%	5044
2022 Q1	–	Sell	-30,300	Closed	-$437K	–	10768
2021 Q4	$437K	Buy	+30,300	New	+$459K	﹤0.01%	7503
2021 Q3	–	Sell	-12,200	Closed	-$166K	–	10434
2021 Q2	$166K	Buy	+12,200	New	+$175K	﹤0.01%	8964
2021 Q1	–	Sell	-12,200	Closed	-$153K	–	9414
2020 Q4	$153K	Buy	+12,200	New	+$138K	﹤0.01%	7072
2020 Q3	–	Sell	-92,500	Closed	-$758K	–	7638
2020 Q2	$758K	Buy	+92,500	New	+$692K	﹤0.01%	4473
2019 Q1	–	Sell	-14,900	Closed	-$156K	–	5398
2018 Q4	$156K	Buy	+14,900	New	+$174K	﹤0.01%	4554
2016 Q1	–	Sell	-11,000	Closed	-$97K	–	4455
2015 Q4	$97K	Sell	11,000 -3,500	-24%	-$32.8K	﹤0.01%	3798
2015 Q3	$134K	Buy	+14,500	New	+$154K	﹤0.01%	3311

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.