Citadel Advisors’s Ducommun DCO Stock Holding History

Citadel Advisors’s Portfolio DCO Stock Details DCO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2025 Q1	–	Sell	-200	Closed	-$12.7K	–	14636
2024 Q4	$12.7K	Sell	200 -500	-71%	-$32.1K	﹤0.01%	13483
2024 Q3	$46.1K	Sell	700 -2,000	-74%	-$125K	﹤0.01%	12004
2024 Q2	$157K	Buy	2,700 +1,700	+170%	+$95K	﹤0.01%	10279
2024 Q1	$51.3K	Buy	1,000 +800	+400%	+$39.9K	﹤0.01%	12153
2023 Q4	$10.4K	Sell	200 -1,500	-88%	-$73.2K	﹤0.01%	13105
2023 Q3	$74K	Hold	1,700	–	–	﹤0.01%	11267
2023 Q2	$74.1K	Buy	1,700 +700	+70%	+$33K	﹤0.01%	11325
2023 Q1	$54.7K	Buy	1,000 +600	+150%	+$32.7K	﹤0.01%	12043
2022 Q4	$20K	Buy	+400	New	+$19K	﹤0.01%	13144
2022 Q1	–	Sell	-4,500	Closed	-$210K	–	13744
2021 Q4	$210K	Buy	+4,500	New	+$215K	﹤0.01%	11745

Other funds holding DCO

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

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

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

PCMI

Paradigm Capital Management Inc Albany, New York $3.67B AUM 121.12% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return

VanEck Associates New York $164B AUM 112.45% 1-Year Est. Return

GKIM

GW&K Investment Management Boston, Massachusetts $12.8B AUM 48.82% 1-Year Est. Return

Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return

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

Citadel Advisors's DCO Position: Q2 2026 in Review

Citadel Advisors increased its Ducommun (DCO) stake by 170% in Q2 2026, buying an estimated $1.32M and bringing the position to 14,187 shares worth $2.63M. The position accounts for ﹤0.01% of the portfolio, ranked #5961.

Citadel Advisors first reported a position in DCO in Q2 2013 and has held it in 35 quarters since. The position peaked at $5.09M in Q2 2023. 270 funds tracked by Wall St. Rank hold DCO as of Q2 2026.

Citadel Advisors held 14,187 shares of Ducommun worth $2.63M as of Q2 2026.
Citadel Advisors bought 8,923 Ducommun shares in Q2 2026, an estimated $1.32M.
Ducommun made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #5961 holding.
Citadel Advisors first reported a position in Ducommun in Q2 2013 and has held it in 35 quarters since.
Citadel Advisors's Ducommun position peaked at $5.09M in Q2 2023.
270 funds tracked by Wall St. Rank held Ducommun as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.