Simplex Trading
DCO icon

Simplex Trading’s Ducommun DCO Stock Holding History

Simplex Trading’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
Q1 		– Sell
-300
Closed -$28.5K – 9273
2025
Q4 		$28.5K Sell
300
-100
-25% -$9.31K ﹤0.01% 6151
2025
Q3 		$38K Buy
400
+300
+300% +$27.1K ﹤0.01% 6720
2025
Q2 		$8K Buy
+100
New +$6.65K ﹤0.01% 7454
2022
Q2 		– Sell
-100
Closed -$5K – 10140
2022
Q1 		$5K Sell
100
-400
-80% -$19.1K ﹤0.01% 9400
2021
Q4 		$23K Buy
+500
New +$23.9K ﹤0.01% 8188
2020
Q3 		– Sell
-5
Closed -$17K – 7902
2020
Q2 		$17K Sell
5
-11
-69% -$325 ﹤0.01% 6330
2020
Q1 		$39K Buy
16
+15
+1,500% +$577 ﹤0.01% 5391
2019
Q4 		$5K Buy
+1
New +$46 ﹤0.01% 6683
2019
Q1 		– Sell
-49
Closed -$177K – 7238
2018
Q4 		$177K Buy
+49
New +$1.89K ﹤0.01% 3276
2018
Q1 		– Sell
-9
Closed -$1K – 6272
2017
Q4 		$1K Buy
+9
New +$269 ﹤0.01% 5471
2017
Q3 		– Sell
-47
Closed -$2K – 5999
2017
Q2 		$2K Buy
+47
New +$1.46K ﹤0.01% 5208
2015
Q4 		– Sell
-129
Closed -$12K – 5512
2015
Q3 		$12K Buy
129
+119
+1,190% +$2.77K ﹤0.01% 3261
2015
Q2 		$2K Buy
10
+4
+67% +$107 ﹤0.01% 4261
2015
Q1 		$1K Sell
6
-4
-40% -$104 ﹤0.01% 4435
2014
Q4 		$3K Buy
+10
New +$258 ﹤0.01% 3440

Other funds holding DCO

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Fidelity Investments
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
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
GI
GAMCO Investors Greenwich, Connecticut $11.1B AUM 41.79% 1-Year Est. Return
VanEck Associates
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
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Simplex Trading's DCO Position: Q2 2026 in Review

Simplex Trading opened a new position in Ducommun (DCO) in Q2 2026: 52 shares worth $9.63K. The stake represents ﹤0.01% of the portfolio and ranks #7724 among its holdings. This is a return to the name: Simplex Trading previously reported a position in DCO as recently as Q3 2025.

Simplex Trading first reported a position in DCO in Q4 2014 and has held it in 20 quarters since. The position peaked at $185K in Q1 2019. 270 funds tracked by Wall St. Rank hold DCO as of Q2 2026.

  • Simplex Trading held 52 shares of Ducommun worth $9.63K as of Q2 2026.
  • Ducommun was a new Simplex Trading position in Q2 2026.
  • Ducommun made up ﹤0.01% of Simplex Trading's portfolio in Q2 2026, its #7724 holding.
  • Simplex Trading first reported a position in Ducommun in Q4 2014 and has held it in 20 quarters since.
  • Simplex Trading's Ducommun position peaked at $185K in Q1 2019.
  • 270 funds tracked by Wall St. Rank held Ducommun as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.