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Side-by-side financial comparison of DUCOMMUN INC (DCO) and Rocket Lab Corp (RKLB). Click either name above to swap in a different company.

DUCOMMUN INC is the larger business by last-quarter revenue ($215.8M vs $179.7M, roughly 1.2× Rocket Lab Corp). DUCOMMUN INC runs the higher net margin — 3.4% vs -29.5%, a 32.9% gap on every dollar of revenue. On growth, Rocket Lab Corp posted the faster year-over-year revenue change (35.7% vs 9.4%). DUCOMMUN INC produced more free cash flow last quarter ($-78.8M vs $-114.2M). Over the past eight quarters, Rocket Lab Corp's revenue compounded faster (39.2% CAGR vs 6.3%).

Ducommun Inc. is a global aerospace and defense manufacturing enterprise that provides complex structural components, electronic systems and professional engineering services. It mainly serves clients across the commercial aviation, military defense and space sectors, delivering high-reliability solutions for critical aerospace application scenarios.

Rocket Lab Corporation is a publicly traded aerospace manufacturer and launch service provider. Its Electron orbital rocket launches small satellites and has successfully completed over 75 missions as of January 2026, making it the most prolific small-lift launch vehicle in operation globally. A suborbital variant of Electron, called HASTE, was developed as a testbed to advance hypersonic technology development, while the next-generation reusable Neutron medium-lift launch vehicle is in devel...

DCO vs RKLB — Head-to-Head

Bigger by revenue
DCO
DCO
1.2× larger
DCO
$215.8M
$179.7M
RKLB
Growing faster (revenue YoY)
RKLB
RKLB
+26.3% gap
RKLB
35.7%
9.4%
DCO
Higher net margin
DCO
DCO
32.9% more per $
DCO
3.4%
-29.5%
RKLB
More free cash flow
DCO
DCO
$35.4M more FCF
DCO
$-78.8M
$-114.2M
RKLB
Faster 2-yr revenue CAGR
RKLB
RKLB
Annualised
RKLB
39.2%
6.3%
DCO

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DCO
DCO
RKLB
RKLB
Revenue
$215.8M
$179.7M
Net Profit
$7.4M
$-52.9M
Gross Margin
27.7%
38.0%
Operating Margin
6.5%
-28.4%
Net Margin
3.4%
-29.5%
Revenue YoY
9.4%
35.7%
Net Profit YoY
9.9%
-1.1%
EPS (diluted)
$0.52
$-0.09

Green = leading value per metric. Periods may differ when fiscal calendars don't align.

8-Quarter Revenue & Profit Trend

Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.

Revenue
DCO
DCO
RKLB
RKLB
Q4 25
$215.8M
$179.7M
Q3 25
$212.6M
$155.1M
Q2 25
$202.3M
$144.5M
Q1 25
$194.1M
$122.6M
Q4 24
$197.3M
$132.4M
Q3 24
$201.4M
$104.8M
Q2 24
$197.0M
$106.3M
Q1 24
$190.8M
$92.8M
Net Profit
DCO
DCO
RKLB
RKLB
Q4 25
$7.4M
$-52.9M
Q3 25
$-64.4M
$-18.3M
Q2 25
$12.6M
$-66.4M
Q1 25
$10.5M
$-60.6M
Q4 24
$6.8M
$-52.3M
Q3 24
$10.1M
$-51.9M
Q2 24
$7.7M
$-41.6M
Q1 24
$6.8M
$-44.3M
Gross Margin
DCO
DCO
RKLB
RKLB
Q4 25
27.7%
38.0%
Q3 25
26.6%
37.0%
Q2 25
26.6%
32.1%
Q1 25
26.6%
28.8%
Q4 24
23.5%
27.8%
Q3 24
26.2%
26.7%
Q2 24
26.0%
25.6%
Q1 24
24.6%
26.1%
Operating Margin
DCO
DCO
RKLB
RKLB
Q4 25
6.5%
-28.4%
Q3 25
-37.7%
-38.0%
Q2 25
8.5%
-41.3%
Q1 25
8.5%
-48.3%
Q4 24
5.3%
-38.9%
Q3 24
7.6%
-49.5%
Q2 24
7.1%
-40.7%
Q1 24
6.6%
-46.4%
Net Margin
DCO
DCO
RKLB
RKLB
Q4 25
3.4%
-29.5%
Q3 25
-30.3%
-11.8%
Q2 25
6.2%
-46.0%
Q1 25
5.4%
-49.5%
Q4 24
3.4%
-39.5%
Q3 24
5.0%
-49.6%
Q2 24
3.9%
-39.2%
Q1 24
3.6%
-47.7%
EPS (diluted)
DCO
DCO
RKLB
RKLB
Q4 25
$0.52
$-0.09
Q3 25
$-4.30
$-0.03
Q2 25
$0.82
$-0.13
Q1 25
$0.69
$-0.12
Q4 24
$0.45
$-0.11
Q3 24
$0.67
$-0.10
Q2 24
$0.52
$-0.08
Q1 24
$0.46
$-0.09

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
DCO
DCO
RKLB
RKLB
Cash + ST InvestmentsLiquidity on hand
$45.3M
$1.0B
Total DebtLower is stronger
$298.8M
$152.4M
Stockholders' EquityBook value
$662.1M
$1.7B
Total Assets
$1.2B
$2.3B
Debt / EquityLower = less leverage
0.45×
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DCO
DCO
RKLB
RKLB
Q4 25
$45.3M
$1.0B
Q3 25
$50.9M
$976.7M
Q2 25
$37.1M
$688.1M
Q1 25
$30.7M
$428.4M
Q4 24
$37.1M
$419.0M
Q3 24
$37.3M
$442.4M
Q2 24
$29.4M
$496.8M
Q1 24
$32.1M
$492.5M
Total Debt
DCO
DCO
RKLB
RKLB
Q4 25
$298.8M
$152.4M
Q3 25
$215.0M
$347.0M
Q2 25
$218.1M
$346.5M
Q1 25
$229.9M
$345.9M
Q4 24
$229.8M
$345.4M
Q3 24
$246.0M
$61.2M
Q2 24
$250.9M
$64.2M
Q1 24
$253.9M
$66.8M
Stockholders' Equity
DCO
DCO
RKLB
RKLB
Q4 25
$662.1M
$1.7B
Q3 25
$649.0M
$1.3B
Q2 25
$707.8M
$688.5M
Q1 25
$693.0M
$431.3M
Q4 24
$682.5M
$382.5M
Q3 24
$665.6M
$419.8M
Q2 24
$655.9M
$455.2M
Q1 24
$645.5M
$478.9M
Total Assets
DCO
DCO
RKLB
RKLB
Q4 25
$1.2B
$2.3B
Q3 25
$1.2B
$2.2B
Q2 25
$1.1B
$1.6B
Q1 25
$1.1B
$1.3B
Q4 24
$1.1B
$1.2B
Q3 24
$1.1B
$1.2B
Q2 24
$1.1B
$1.2B
Q1 24
$1.1B
$1.2B
Debt / Equity
DCO
DCO
RKLB
RKLB
Q4 25
0.45×
0.09×
Q3 25
0.33×
0.27×
Q2 25
0.31×
0.50×
Q1 25
0.33×
0.80×
Q4 24
0.34×
0.90×
Q3 24
0.37×
0.15×
Q2 24
0.38×
0.14×
Q1 24
0.39×
0.14×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
DCO
DCO
RKLB
RKLB
Operating Cash FlowLast quarter
$-74.7M
$-64.5M
Free Cash FlowOCF − Capex
$-78.8M
$-114.2M
FCF MarginFCF / Revenue
-36.5%
-63.6%
Capex IntensityCapex / Revenue
1.9%
27.6%
Cash ConversionOCF / Net Profit
-10.03×
TTM Free Cash FlowTrailing 4 quarters
$-48.6M
$-321.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DCO
DCO
RKLB
RKLB
Q4 25
$-74.7M
$-64.5M
Q3 25
$18.1M
$-23.5M
Q2 25
$22.4M
$-23.2M
Q1 25
$771.0K
$-54.2M
Q4 24
$18.4M
$-2.4M
Q3 24
$13.9M
$-30.9M
Q2 24
$3.5M
$-13.0M
Q1 24
$-1.6M
$-2.6M
Free Cash Flow
DCO
DCO
RKLB
RKLB
Q4 25
$-78.8M
$-114.2M
Q3 25
$16.0M
$-69.4M
Q2 25
$18.1M
$-55.3M
Q1 25
$-4.0M
$-82.9M
Q4 24
$14.6M
$-23.9M
Q3 24
$12.0M
$-41.9M
Q2 24
$144.0K
$-28.3M
Q1 24
$-6.6M
$-21.8M
FCF Margin
DCO
DCO
RKLB
RKLB
Q4 25
-36.5%
-63.6%
Q3 25
7.5%
-44.8%
Q2 25
9.0%
-38.3%
Q1 25
-2.1%
-67.6%
Q4 24
7.4%
-18.1%
Q3 24
5.9%
-40.0%
Q2 24
0.1%
-26.7%
Q1 24
-3.5%
-23.5%
Capex Intensity
DCO
DCO
RKLB
RKLB
Q4 25
1.9%
27.6%
Q3 25
1.0%
29.6%
Q2 25
2.1%
22.2%
Q1 25
2.5%
23.4%
Q4 24
2.0%
16.3%
Q3 24
1.0%
10.5%
Q2 24
1.7%
14.4%
Q1 24
2.6%
20.7%
Cash Conversion
DCO
DCO
RKLB
RKLB
Q4 25
-10.03×
Q3 25
Q2 25
1.79×
Q1 25
0.07×
Q4 24
2.72×
Q3 24
1.37×
Q2 24
0.45×
Q1 24
-0.24×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

DCO
DCO

Other$90.1M42%
Militaryand Space$60.0M28%
Electronic Systems Segment$31.3M15%
Commercial Aerospace$24.8M11%
Estimate At Completion Adjustment$6.6M3%
Industrial$3.0M1%

RKLB
RKLB

Products$94.0M52%
Transferred Over Time$87.3M49%

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