DCO — DUCOMMUN INC /DE/

US Industrials Aerospace & defense equity mkt cap 2.9B
191.65 +1.36% today
USD · as of 2026-08-21

Price · 2024-08-26 → 2026-08-21

499 daily closes shown
52w low 86.41 · high 206.98

Anonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2016-01-04.

Performance

1 day+1.36%
1 week-7.41%
1 month+9.20%
3 months+34.10%
6 months+51.41%
Year to date+97.99%
1 year+118.28%
3 years+332.62%
5 years+254.25%

Technicals

RSI 1457.0
vs 50-day avg+6.32%
vs 200-day avg+41.96%
Volatility 1y39.1%
Max drawdown 1y-16.03%
Avg volume 30d266.2K
Daily bars held2,674
History from2016-01-04

Measured signals that fired on DCO

datesignal measured base rate
2026-08-21Fair value gap, bearish
structure
-0.45% over 21 days · t = -3.29 · n = 108,591
statistically distinguishable from its control group
2026-08-05Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group
2026-08-04Breakout to a 52-week high
price
-1.00% over 21 days · t = -8.58 · n = 24,386
statistically distinguishable from its control group
2026-07-08Fair value gap, bearish
structure
-0.45% over 21 days · t = -3.29 · n = 108,591
statistically distinguishable from its control group
2026-06-12Fair value gap, bullish
structure
-0.67% over 21 days · t = -6.43 · n = 111,973
statistically distinguishable from its control group
2026-06-09Equal highs taken out
structure
-0.70% over 21 days · t = -8.28 · n = 68,636
statistically distinguishable from its control group

Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →

Insider transactions (Form 4)

dateinsiderwhatshares pricevalue
2026-08-18Oswald Stephen G
Chairman, President & CEO
Open-market sale2.5K203.95509.9K
2026-08-17Oswald Stephen G
Chairman, President & CEO
Shares withheld for tax6.1K206.981.3M
2026-08-17Oswald Stephen G
Chairman, President & CEO
Option exercise10.0K32.90329.0K
2026-08-12Oswald Stephen G
Chairman, President & CEO
Open-market sale5.8K201.151.2M
2026-08-12Oswald Stephen G
Chairman, President & CEO
Open-market sale5.8K201.151.2M
2026-08-12Oswald Stephen G
Chairman, President & CEO
Gift2.2K0.000
2026-08-12Oswald Stephen G
Chairman, President & CEO
Gift3.4K0.000
2026-08-11Oswald Stephen G
Chairman, President & CEO
Shares withheld for tax9.2K194.851.8M
2026-08-11Oswald Stephen G
Chairman, President & CEO
Shares withheld for tax9.2K194.851.8M
2026-08-11Oswald Stephen G
Chairman, President & CEO
Option exercise15.0K32.90493.5K

Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →

Largest institutional holders

managervalueshares
BlackRock, Inc.215.8M1.8M
STATE STREET CORP95.8M785.5K
PARADIGM CAPITAL MANAGEMENT INC/NY94.0M770.5K
VANGUARD CAPITAL MANAGEMENT LLC74.8M612.9K
DIMENSIONAL FUND ADVISORS LP62.5M512.2K
GAMCO INVESTORS, INC. ET AL54.8M449.5K
BROWN ADVISORY INC42.6M349.3K
GEODE CAPITAL MANAGEMENT, LLC40.9M335.0K
VICTORY CAPITAL MANAGEMENT INC40.3M330.1K
Ophir Asset Management Pty Ltd38.2M312.9K

13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →

Short selling

Avg short volume, 90d56.1% of tape
Days observed61

This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →

Ask the AI about DCO

The assistant reads every block on this page — price history, filings, insider transactions, institutional positions, short volume, macro and the measured base rates — and says what it implies, quoting the number behind each claim and declaring what it does not have.

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