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 $5.72T AUM 30.48% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
PCMI
Paradigm Capital Management Inc Albany, New York $2.61B AUM 78.58% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return
GI
GAMCO Investors Greenwich, Connecticut $10.2B AUM 30.27% 1-Year Est. Return
Brown Advisory
Brown Advisory Baltimore, Maryland $60.9B AUM 15.24% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
OAM
Ophir Asset Management Sydney, Australia $859M AUM 59.08% 1-Year Est. Return

Simplex Trading's DCO Position: Q4 2025 in Review

Simplex Trading sold out of Ducommun (DCO) in Q4 2025, closing a stake of 113 shares — an estimated $10.5K sold.

Simplex Trading first reported a position in DCO in Q4 2014 and held it in 19 quarters. The position peaked at $185K in Q1 2019. 206 funds tracked by Wall St. Rank hold DCO as of Q4 2025.

  • Simplex Trading reported no remaining Ducommun position as of Q4 2025 after selling out during the quarter.
  • Simplex Trading sold 113 Ducommun shares in Q4 2025, an estimated $10.5K.
  • Simplex Trading first reported a position in Ducommun in Q4 2014 and held it in 19 quarters.
  • Simplex Trading's Ducommun position peaked at $185K in Q1 2019.
  • 206 funds tracked by Wall St. Rank held Ducommun as of Q4 2025.

Based on Simplex Trading's 13F filing for Q4 2025, filed 11 Feb 2026.