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Side-by-side financial comparison of Ribbon Communications Inc. (RBBN) and Rocket Lab Corp (RKLB). Click either name above to swap in a different company.

Rocket Lab Corp is the larger business by last-quarter revenue ($179.7M vs $162.6M, roughly 1.1× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs -29.5%, a 84.2% gap on every dollar of revenue. On growth, Rocket Lab Corp posted the faster year-over-year revenue change (35.7% vs -10.3%). Over the past eight quarters, Rocket Lab Corp's revenue compounded faster (39.2% CAGR vs -8.1%).

Ribbon Communications Inc. is a public company that makes software, IP and optical networking solutions for service providers, enterprises and critical infrastructure sectors. The company was formed in 2017, following the merger of Genband and Sonus Networks and is headquartered in Plano, Texas.

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...

RBBN vs RKLB — Head-to-Head

Bigger by revenue
RKLB
RKLB
1.1× larger
RKLB
$179.7M
$162.6M
RBBN
Growing faster (revenue YoY)
RKLB
RKLB
+46.0% gap
RKLB
35.7%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
84.2% more per $
RBBN
54.8%
-29.5%
RKLB
Faster 2-yr revenue CAGR
RKLB
RKLB
Annualised
RKLB
39.2%
-8.1%
RBBN

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
RBBN
RBBN
RKLB
RKLB
Revenue
$162.6M
$179.7M
Net Profit
$89.1M
$-52.9M
Gross Margin
42.9%
38.0%
Operating Margin
37.6%
-28.4%
Net Margin
54.8%
-29.5%
Revenue YoY
-10.3%
35.7%
Net Profit YoY
-1.1%
EPS (diluted)
$0.50
$-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
RBBN
RBBN
RKLB
RKLB
Q1 26
$162.6M
Q4 25
$227.3M
$179.7M
Q3 25
$215.4M
$155.1M
Q2 25
$220.6M
$144.5M
Q1 25
$181.3M
$122.6M
Q4 24
$251.4M
$132.4M
Q3 24
$210.2M
$104.8M
Q2 24
$192.6M
$106.3M
Net Profit
RBBN
RBBN
RKLB
RKLB
Q1 26
$89.1M
Q4 25
$-52.9M
Q3 25
$-12.1M
$-18.3M
Q2 25
$-11.1M
$-66.4M
Q1 25
$-26.2M
$-60.6M
Q4 24
$-52.3M
Q3 24
$-13.4M
$-51.9M
Q2 24
$-16.8M
$-41.6M
Gross Margin
RBBN
RBBN
RKLB
RKLB
Q1 26
42.9%
Q4 25
53.3%
38.0%
Q3 25
50.1%
37.0%
Q2 25
49.6%
32.1%
Q1 25
45.4%
28.8%
Q4 24
55.7%
27.8%
Q3 24
52.1%
26.7%
Q2 24
50.8%
25.6%
Operating Margin
RBBN
RBBN
RKLB
RKLB
Q1 26
37.6%
Q4 25
4.1%
-28.4%
Q3 25
1.3%
-38.0%
Q2 25
1.9%
-41.3%
Q1 25
-10.8%
-48.3%
Q4 24
13.2%
-38.9%
Q3 24
-0.4%
-49.5%
Q2 24
-1.0%
-40.7%
Net Margin
RBBN
RBBN
RKLB
RKLB
Q1 26
54.8%
Q4 25
-29.5%
Q3 25
-5.6%
-11.8%
Q2 25
-5.0%
-46.0%
Q1 25
-14.5%
-49.5%
Q4 24
-39.5%
Q3 24
-6.4%
-49.6%
Q2 24
-8.7%
-39.2%
EPS (diluted)
RBBN
RBBN
RKLB
RKLB
Q1 26
$0.50
Q4 25
$0.50
$-0.09
Q3 25
$-0.07
$-0.03
Q2 25
$-0.06
$-0.13
Q1 25
$-0.15
$-0.12
Q4 24
$0.05
$-0.11
Q3 24
$-0.08
$-0.10
Q2 24
$-0.10
$-0.08

Balance Sheet & Financial Strength

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

Metric
RBBN
RBBN
RKLB
RKLB
Cash + ST InvestmentsLiquidity on hand
$67.6M
$1.0B
Total DebtLower is stronger
$152.4M
Stockholders' EquityBook value
$419.1M
$1.7B
Total Assets
$2.3B
Debt / EquityLower = less leverage
0.09×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
RBBN
RBBN
RKLB
RKLB
Q1 26
$67.6M
Q4 25
$96.4M
$1.0B
Q3 25
$74.8M
$976.7M
Q2 25
$60.5M
$688.1M
Q1 25
$71.2M
$428.4M
Q4 24
$87.8M
$419.0M
Q3 24
$37.2M
$442.4M
Q2 24
$64.6M
$496.8M
Total Debt
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
$342.1M
$152.4M
Q3 25
$344.3M
$347.0M
Q2 25
$346.5M
$346.5M
Q1 25
$347.4M
$345.9M
Q4 24
$348.3M
$345.4M
Q3 24
$349.1M
$61.2M
Q2 24
$350.0M
$64.2M
Stockholders' Equity
RBBN
RBBN
RKLB
RKLB
Q1 26
$419.1M
Q4 25
$449.0M
$1.7B
Q3 25
$360.1M
$1.3B
Q2 25
$370.4M
$688.5M
Q1 25
$381.8M
$431.3M
Q4 24
$404.6M
$382.5M
Q3 24
$395.5M
$419.8M
Q2 24
$405.0M
$455.2M
Total Assets
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
$1.2B
$2.3B
Q3 25
$1.1B
$2.2B
Q2 25
$1.1B
$1.6B
Q1 25
$1.1B
$1.3B
Q4 24
$1.2B
$1.2B
Q3 24
$1.1B
$1.2B
Q2 24
$1.1B
$1.2B
Debt / Equity
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
0.76×
0.09×
Q3 25
0.96×
0.27×
Q2 25
0.94×
0.50×
Q1 25
0.91×
0.80×
Q4 24
0.86×
0.90×
Q3 24
0.88×
0.15×
Q2 24
0.86×
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
RBBN
RBBN
RKLB
RKLB
Operating Cash FlowLast quarter
$-64.5M
Free Cash FlowOCF − Capex
$-114.2M
FCF MarginFCF / Revenue
-63.6%
Capex IntensityCapex / Revenue
27.6%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-321.8M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
$29.2M
$-64.5M
Q3 25
$26.5M
$-23.5M
Q2 25
$-795.0K
$-23.2M
Q1 25
$-3.5M
$-54.2M
Q4 24
$61.8M
$-2.4M
Q3 24
$-14.8M
$-30.9M
Q2 24
$-9.8M
$-13.0M
Free Cash Flow
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
$27.3M
$-114.2M
Q3 25
$21.0M
$-69.4M
Q2 25
$-6.5M
$-55.3M
Q1 25
$-15.7M
$-82.9M
Q4 24
$53.8M
$-23.9M
Q3 24
$-23.7M
$-41.9M
Q2 24
$-12.9M
$-28.3M
FCF Margin
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
12.0%
-63.6%
Q3 25
9.7%
-44.8%
Q2 25
-2.9%
-38.3%
Q1 25
-8.7%
-67.6%
Q4 24
21.4%
-18.1%
Q3 24
-11.3%
-40.0%
Q2 24
-6.7%
-26.7%
Capex Intensity
RBBN
RBBN
RKLB
RKLB
Q1 26
Q4 25
0.9%
27.6%
Q3 25
2.6%
29.6%
Q2 25
2.6%
22.2%
Q1 25
6.7%
23.4%
Q4 24
3.2%
16.3%
Q3 24
4.2%
10.5%
Q2 24
1.6%
14.4%

Financial Flow Comparison

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

Revenue Breakdown by Segment

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

RKLB
RKLB

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

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