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 Q2	$4.65M	Buy	20,500 +15,500	+310%	+$3.28M	﹤0.01%	3811
2026 Q1	$948K	Buy	+5,000	New	+$987K	﹤0.01%	6626
2023 Q4	–	Sell	-1,300	Closed	-$270K	–	9470
2023 Q3	$270K	Buy	+1,300	New	+$282K	﹤0.01%	7214
2023 Q1	–	Sell	-7,400	Closed	-$1.69M	–	9424
2022 Q4	$1.69M	Sell	7,400 -1,300	-15%	-$291K	﹤0.01%	4113
2022 Q3	$1.74M	Buy	8,700 +3,000	+53%	+$606K	﹤0.01%	4433
2022 Q2	$1.03M	Buy	5,700 +2,700	+90%	+$509K	﹤0.01%	5422
2022 Q1	$575K	Buy	+3,000	New	+$609K	﹤0.01%	7205
2021 Q4	–	Sell	-3,300	Closed	-$683K	–	10405
2021 Q3	$683K	Sell	3,300 -200	-6%	-$44.4K	﹤0.01%	6696
2021 Q2	$770K	Sell	3,500 -2,500	-42%	-$552K	﹤0.01%	6394
2021 Q1	$1.26M	Buy	6,000 +4,900	+445%	+$971K	﹤0.01%	5007
2020 Q4	$219K	Sell	1,100 -100	-8%	-$19K	﹤0.01%	6840
2020 Q3	$219K	Buy	+1,200	New	+$208K	﹤0.01%	6318

Other funds holding IEX

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Primecap Management Pasadena, California $169B AUM 114.72% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Millennium Management New York $276B AUM 44.8% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Nordea Investment Management Stockholm, Sweden $123B AUM 38.85% 1-Year Est. Return

Victory Capital Management San Antonio, Texas $178B AUM 37.23% 1-Year Est. Return

Jane Street's IEX Position: Q2 2026 in Review

Jane Street reduced its IDEX (IEX) stake by 65% in Q2 2026, selling an estimated $159M and leaving 411,838 shares worth $93.5M. The position accounts for 0.01% of the portfolio, ranked #978.

Jane Street first reported a position in IEX in Q3 2013 and has held it in 36 quarters since. The position peaked at $221M in Q1 2026. 690 funds tracked by Wall St. Rank hold IEX as of Q2 2026.

Jane Street held 411,838 shares of IDEX worth $93.5M as of Q2 2026.
Jane Street sold 753,681 IDEX shares in Q2 2026, an estimated $159M.
IDEX made up 0.01% of Jane Street's portfolio in Q2 2026, its #978 holding.
Jane Street first reported a position in IDEX in Q3 2013 and has held it in 36 quarters since.
Jane Street's IDEX position peaked at $221M in Q1 2026.
690 funds tracked by Wall St. Rank held IDEX as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.