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Side-by-side financial comparison of NETSCOUT SYSTEMS INC (NTCT) and Ribbon Communications Inc. (RBBN). Click either name above to swap in a different company.

NETSCOUT SYSTEMS INC is the larger business by last-quarter revenue ($250.7M vs $162.6M, roughly 1.5× Ribbon Communications Inc.). Ribbon Communications Inc. runs the higher net margin — 54.8% vs 22.0%, a 32.8% gap on every dollar of revenue. On growth, NETSCOUT SYSTEMS INC posted the faster year-over-year revenue change (-0.5% vs -10.3%). Over the past eight quarters, NETSCOUT SYSTEMS INC's revenue compounded faster (11.0% CAGR vs -8.1%).

NETSCOUT Systems, Inc. is an American technology company that specializes in software observability, deep packet inspection, DDoS mitigation and AIOps. Headquartered in Westford, Massachusetts, the company was founded in 1984 by Anil Singhal and Narendra Popat, originally under the name Frontier Software.

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.

NTCT vs RBBN — Head-to-Head

Bigger by revenue
NTCT
NTCT
1.5× larger
NTCT
$250.7M
$162.6M
RBBN
Growing faster (revenue YoY)
NTCT
NTCT
+9.8% gap
NTCT
-0.5%
-10.3%
RBBN
Higher net margin
RBBN
RBBN
32.8% more per $
RBBN
54.8%
22.0%
NTCT
Faster 2-yr revenue CAGR
NTCT
NTCT
Annualised
NTCT
11.0%
-8.1%
RBBN

Income Statement — Q3 FY2026 vs Q1 FY2026

Metric
NTCT
NTCT
RBBN
RBBN
Revenue
$250.7M
$162.6M
Net Profit
$55.1M
$89.1M
Gross Margin
81.6%
42.9%
Operating Margin
25.7%
Net Margin
22.0%
54.8%
Revenue YoY
-0.5%
-10.3%
Net Profit YoY
13.0%
EPS (diluted)
$0.75
$0.50

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
NTCT
NTCT
RBBN
RBBN
Q1 26
$162.6M
Q4 25
$250.7M
$227.3M
Q3 25
$219.0M
$215.4M
Q2 25
$186.7M
$220.6M
Q1 25
$205.0M
$181.3M
Q4 24
$252.0M
$251.4M
Q3 24
$191.1M
$210.2M
Q2 24
$174.6M
$192.6M
Net Profit
NTCT
NTCT
RBBN
RBBN
Q1 26
$89.1M
Q4 25
$55.1M
Q3 25
$25.8M
$-12.1M
Q2 25
$-3.7M
$-11.1M
Q1 25
$18.6M
$-26.2M
Q4 24
$48.8M
Q3 24
$9.0M
$-13.4M
Q2 24
$-443.4M
$-16.8M
Gross Margin
NTCT
NTCT
RBBN
RBBN
Q1 26
42.9%
Q4 25
81.6%
53.3%
Q3 25
80.1%
50.1%
Q2 25
76.7%
49.6%
Q1 25
77.7%
45.4%
Q4 24
81.5%
55.7%
Q3 24
78.0%
52.1%
Q2 24
74.6%
50.8%
Operating Margin
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
25.7%
4.1%
Q3 25
14.8%
1.3%
Q2 25
-3.5%
1.9%
Q1 25
9.7%
-10.8%
Q4 24
24.5%
13.2%
Q3 24
7.4%
-0.4%
Q2 24
-265.4%
-1.0%
Net Margin
NTCT
NTCT
RBBN
RBBN
Q1 26
54.8%
Q4 25
22.0%
Q3 25
11.8%
-5.6%
Q2 25
-2.0%
-5.0%
Q1 25
9.1%
-14.5%
Q4 24
19.4%
Q3 24
4.7%
-6.4%
Q2 24
-254.0%
-8.7%
EPS (diluted)
NTCT
NTCT
RBBN
RBBN
Q1 26
$0.50
Q4 25
$0.75
$0.50
Q3 25
$0.35
$-0.07
Q2 25
$-0.05
$-0.06
Q1 25
$0.28
$-0.15
Q4 24
$0.67
$0.05
Q3 24
$0.13
$-0.08
Q2 24
$-6.20
$-0.10

Balance Sheet & Financial Strength

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

Metric
NTCT
NTCT
RBBN
RBBN
Cash + ST InvestmentsLiquidity on hand
$540.6M
$67.6M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.6B
$419.1M
Total Assets
$2.3B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NTCT
NTCT
RBBN
RBBN
Q1 26
$67.6M
Q4 25
$540.6M
$96.4M
Q3 25
$483.4M
$74.8M
Q2 25
$489.6M
$60.5M
Q1 25
$457.4M
$71.2M
Q4 24
$398.4M
$87.8M
Q3 24
$363.4M
$37.2M
Q2 24
$362.2M
$64.6M
Total Debt
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
$342.1M
Q3 25
$344.3M
Q2 25
$346.5M
Q1 25
$347.4M
Q4 24
$348.3M
Q3 24
$349.1M
Q2 24
$350.0M
Stockholders' Equity
NTCT
NTCT
RBBN
RBBN
Q1 26
$419.1M
Q4 25
$1.6B
$449.0M
Q3 25
$1.6B
$360.1M
Q2 25
$1.5B
$370.4M
Q1 25
$1.6B
$381.8M
Q4 24
$1.5B
$404.6M
Q3 24
$1.5B
$395.5M
Q2 24
$1.4B
$405.0M
Total Assets
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
$2.3B
$1.2B
Q3 25
$2.2B
$1.1B
Q2 25
$2.2B
$1.1B
Q1 25
$2.2B
$1.1B
Q4 24
$2.2B
$1.2B
Q3 24
$2.1B
$1.1B
Q2 24
$2.1B
$1.1B
Debt / Equity
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
0.76×
Q3 25
0.96×
Q2 25
0.94×
Q1 25
0.91×
Q4 24
0.86×
Q3 24
0.88×
Q2 24
0.86×

Cash Flow & Capital Efficiency

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

Metric
NTCT
NTCT
RBBN
RBBN
Operating Cash FlowLast quarter
$62.1M
Free Cash FlowOCF − Capex
$59.3M
FCF MarginFCF / Revenue
23.6%
Capex IntensityCapex / Revenue
1.1%
Cash ConversionOCF / Net Profit
1.13×
TTM Free Cash FlowTrailing 4 quarters
$275.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
$62.1M
$29.2M
Q3 25
$6.7M
$26.5M
Q2 25
$73.6M
$-795.0K
Q1 25
$141.5M
$-3.5M
Q4 24
$41.5M
$61.8M
Q3 24
$-3.7M
$-14.8M
Q2 24
$38.4M
$-9.8M
Free Cash Flow
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
$59.3M
$27.3M
Q3 25
$4.4M
$21.0M
Q2 25
$71.7M
$-6.5M
Q1 25
$140.1M
$-15.7M
Q4 24
$39.6M
$53.8M
Q3 24
$-4.6M
$-23.7M
Q2 24
$37.2M
$-12.9M
FCF Margin
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
23.6%
12.0%
Q3 25
2.0%
9.7%
Q2 25
38.4%
-2.9%
Q1 25
68.4%
-8.7%
Q4 24
15.7%
21.4%
Q3 24
-2.4%
-11.3%
Q2 24
21.3%
-6.7%
Capex Intensity
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
1.1%
0.9%
Q3 25
1.0%
2.6%
Q2 25
1.0%
2.6%
Q1 25
0.7%
6.7%
Q4 24
0.7%
3.2%
Q3 24
0.5%
4.2%
Q2 24
0.7%
1.6%
Cash Conversion
NTCT
NTCT
RBBN
RBBN
Q1 26
Q4 25
1.13×
Q3 25
0.26×
Q2 25
Q1 25
7.60×
Q4 24
0.85×
Q3 24
-0.41×
Q2 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

NTCT
NTCT

Services$129.0M51%
Products$121.7M49%

RBBN
RBBN

Service$94.5M58%
Product$68.1M42%

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