Oberweis Asset Management’s Ducommun DCO Stock Holding History

Oberweis Asset Management’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
2026 Q2	$21.1M	Buy	113,800 +13,900	+14%	+$2.06M	0.44%	82
2026 Q1	$12.2M	Buy	99,900 +1,800	+2%	+$215K	0.36%	103
2025 Q4	$9.33M	Buy	98,100 +2,400	+3%	+$224K	0.34%	110
2025 Q3	$9.2M	Hold	95,700	–	–	0.35%	106
2025 Q2	$7.91M	Hold	95,700	–	–	0.34%	104
2025 Q1	$5.55M	Hold	95,700	–	–	0.28%	124
2024 Q4	$6.09M	Buy	+95,700	New	+$6.15M	0.29%	127
2019 Q3	–	Sell	-10,150	Closed	-$457K	–	200
2019 Q2	$457K	Sell	10,150 -4,000	-28%	-$179K	0.08%	152
2019 Q1	$616K	Buy	14,150 +350	+3%	+$14.4K	0.12%	124
2018 Q4	$501K	Sell	13,800 -5,200	-27%	-$200K	0.11%	136
2018 Q3	$776K	Buy	+19,000	New	+$710K	0.15%	121

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

Oberweis Asset Management's DCO Position: Q2 2026 in Review

Oberweis Asset Management increased its Ducommun (DCO) stake by 14% in Q2 2026, buying an estimated $2.06M and bringing the position to 113,800 shares worth $21.1M. The position accounts for 0.44% of the portfolio, ranked #82.

Oberweis Asset Management first reported a position in DCO in Q3 2018 and has held it in 11 quarters since. 270 funds tracked by Wall St. Rank hold DCO as of Q2 2026.

Oberweis Asset Management held 113,800 shares of Ducommun worth $21.1M as of Q2 2026.
Oberweis Asset Management bought 13,900 Ducommun shares in Q2 2026, an estimated $2.06M.
Ducommun made up 0.44% of Oberweis Asset Management's portfolio in Q2 2026, its #82 holding.
Oberweis Asset Management first reported a position in Ducommun in Q3 2018 and has held it in 11 quarters since.
270 funds tracked by Wall St. Rank held Ducommun as of Q2 2026.

Based on Oberweis Asset Management's 13F filing for Q2 2026, filed 14 Aug 2026.