Jane Street’s IDEX IEX Stock Holding History

Jane Street’s Portfolio IEX Stock Details IEX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.54M	Buy	8,100 +6,900	+575%	+$1.36M	﹤0.01%	5592
2025 Q4	$214K	Buy	+1,200	New	+$205K	﹤0.01%	9594
2023 Q2	–	Sell	-1,100	Closed	-$254K	–	9085
2023 Q1	$254K	Sell	1,100 -3,700	-77%	-$840K	﹤0.01%	7458
2022 Q4	$1.1M	Hold	4,800	–	–	﹤0.01%	4851
2022 Q3	$959K	Buy	4,800 +2,200	+85%	+$445K	﹤0.01%	5479
2022 Q2	$472K	Sell	2,600 -500	-16%	-$94.2K	﹤0.01%	6846
2022 Q1	$594K	Buy	3,100 +1,400	+82%	+$284K	﹤0.01%	7147
2021 Q4	$402K	Buy	+1,700	New	+$386K	﹤0.01%	7643
2021 Q3	–	Sell	-3,100	Closed	-$682K	–	10280
2021 Q2	$682K	Sell	3,100 -400	-11%	-$88.4K	﹤0.01%	6645
2021 Q1	$733K	Buy	3,500 +1,300	+59%	+$258K	﹤0.01%	6070
2020 Q4	$438K	Buy	+2,200	New	+$418K	﹤0.01%	5932

Other funds holding IEX

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

VCM

Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM

VPM

Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM

Primecap Management Pasadena, California $127B AUM 44.11% 1-Year Est. Return

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

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

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Millennium Management New York $240B AUM 35.51% 1-Year Est. Return

Nordea Investment Management Stockholm, Sweden $107B AUM 24.58% 1-Year Est. Return

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

Jane Street's IEX Position: Q1 2026 in Review

Jane Street increased its IDEX (IEX) stake by 47,164% in Q1 2026, buying an estimated $230M and bringing the position to 1,165,519 shares worth $221M. The position accounts for 0.03% of the portfolio, ranked #368.

Jane Street first reported a position in IEX in Q3 2013 and has held it in 35 quarters since. 671 funds tracked by Wall St. Rank hold IEX as of Q1 2026.

Jane Street held 1,165,519 shares of IDEX worth $221M as of Q1 2026.
Jane Street bought 1,163,053 IDEX shares in Q1 2026, an estimated $230M.
IDEX made up 0.03% of Jane Street's portfolio in Q1 2026, its #368 holding.
Jane Street first reported a position in IDEX in Q3 2013 and has held it in 35 quarters since.
671 funds tracked by Wall St. Rank held IDEX as of Q1 2026.

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