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Side-by-side financial comparison of NETSCOUT SYSTEMS INC (NTCT) and REPLIGEN CORP (RGEN). Click either name above to swap in a different company.

NETSCOUT SYSTEMS INC is the larger business by last-quarter revenue ($250.7M vs $197.9M, roughly 1.3× REPLIGEN CORP). NETSCOUT SYSTEMS INC runs the higher net margin — 22.0% vs 6.7%, a 15.3% gap on every dollar of revenue. On growth, REPLIGEN CORP posted the faster year-over-year revenue change (13.6% vs -0.5%). NETSCOUT SYSTEMS INC produced more free cash flow last quarter ($59.3M vs $17.6M). Over the past eight quarters, REPLIGEN CORP's revenue compounded faster (14.4% CAGR vs 11.0%).

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.

Repligen Corporation is a global life sciences company devoted to the development and commercialization of innovative bioprocessing technologies and systems that enable efficiencies in the process of manufacturing biological drugs.2025 The company is based in Waltham, Massachusetts,2014 and was incorporated in Delaware in 1981. A public company, Repligen is listed on the NASDAQ exchange under the symbol RGEN. As of 2025, Repligen employs over 1,900 employees globally and serves primarily biop...

NTCT vs RGEN — Head-to-Head

Bigger by revenue
NTCT
NTCT
1.3× larger
NTCT
$250.7M
$197.9M
RGEN
Growing faster (revenue YoY)
RGEN
RGEN
+14.2% gap
RGEN
13.6%
-0.5%
NTCT
Higher net margin
NTCT
NTCT
15.3% more per $
NTCT
22.0%
6.7%
RGEN
More free cash flow
NTCT
NTCT
$41.7M more FCF
NTCT
$59.3M
$17.6M
RGEN
Faster 2-yr revenue CAGR
RGEN
RGEN
Annualised
RGEN
14.4%
11.0%
NTCT

Income Statement — Q3 FY2026 vs Q4 FY2025

Metric
NTCT
NTCT
RGEN
RGEN
Revenue
$250.7M
$197.9M
Net Profit
$55.1M
$13.3M
Gross Margin
81.6%
52.5%
Operating Margin
25.7%
9.0%
Net Margin
22.0%
6.7%
Revenue YoY
-0.5%
13.6%
Net Profit YoY
13.0%
143.9%
EPS (diluted)
$0.75
$0.24

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
RGEN
RGEN
Q4 25
$250.7M
$197.9M
Q3 25
$219.0M
$188.8M
Q2 25
$186.7M
$182.4M
Q1 25
$205.0M
$169.2M
Q4 24
$252.0M
$174.1M
Q3 24
$191.1M
$154.9M
Q2 24
$174.6M
$154.1M
Q1 24
$203.4M
$151.3M
Net Profit
NTCT
NTCT
RGEN
RGEN
Q4 25
$55.1M
$13.3M
Q3 25
$25.8M
$14.9M
Q2 25
$-3.7M
$14.9M
Q1 25
$18.6M
$5.8M
Q4 24
$48.8M
$-30.3M
Q3 24
$9.0M
$-654.0K
Q2 24
$-443.4M
$3.3M
Q1 24
$-32.4M
$2.1M
Gross Margin
NTCT
NTCT
RGEN
RGEN
Q4 25
81.6%
52.5%
Q3 25
80.1%
53.2%
Q2 25
76.7%
50.0%
Q1 25
77.7%
53.6%
Q4 24
81.5%
26.1%
Q3 24
78.0%
50.0%
Q2 24
74.6%
49.8%
Q1 24
75.3%
49.5%
Operating Margin
NTCT
NTCT
RGEN
RGEN
Q4 25
25.7%
9.0%
Q3 25
14.8%
8.9%
Q2 25
-3.5%
7.6%
Q1 25
9.7%
3.9%
Q4 24
24.5%
-17.7%
Q3 24
7.4%
-5.1%
Q2 24
-265.4%
1.0%
Q1 24
-18.2%
1.3%
Net Margin
NTCT
NTCT
RGEN
RGEN
Q4 25
22.0%
6.7%
Q3 25
11.8%
7.9%
Q2 25
-2.0%
8.2%
Q1 25
9.1%
3.4%
Q4 24
19.4%
-17.4%
Q3 24
4.7%
-0.4%
Q2 24
-254.0%
2.2%
Q1 24
-15.9%
1.4%
EPS (diluted)
NTCT
NTCT
RGEN
RGEN
Q4 25
$0.75
$0.24
Q3 25
$0.35
$0.26
Q2 25
$-0.05
$0.26
Q1 25
$0.28
$0.10
Q4 24
$0.67
$-0.55
Q3 24
$0.13
$-0.01
Q2 24
$-6.20
$0.06
Q1 24
$-0.43
$0.04

Balance Sheet & Financial Strength

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

Metric
NTCT
NTCT
RGEN
RGEN
Cash + ST InvestmentsLiquidity on hand
$540.6M
$767.6M
Total DebtLower is stronger
$542.2M
Stockholders' EquityBook value
$1.6B
$2.1B
Total Assets
$2.3B
$2.9B
Debt / EquityLower = less leverage
0.26×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NTCT
NTCT
RGEN
RGEN
Q4 25
$540.6M
$767.6M
Q3 25
$483.4M
$748.7M
Q2 25
$489.6M
$708.9M
Q1 25
$457.4M
$697.2M
Q4 24
$398.4M
$757.4M
Q3 24
$363.4M
$784.0M
Q2 24
$362.2M
$809.1M
Q1 24
$389.7M
$780.6M
Total Debt
NTCT
NTCT
RGEN
RGEN
Q4 25
$542.2M
Q3 25
$537.9M
Q2 25
Q1 25
Q4 24
$525.6M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
NTCT
NTCT
RGEN
RGEN
Q4 25
$1.6B
$2.1B
Q3 25
$1.6B
$2.1B
Q2 25
$1.5B
$2.1B
Q1 25
$1.6B
$2.0B
Q4 24
$1.5B
$2.0B
Q3 24
$1.5B
$2.0B
Q2 24
$1.4B
$2.0B
Q1 24
$1.9B
$2.0B
Total Assets
NTCT
NTCT
RGEN
RGEN
Q4 25
$2.3B
$2.9B
Q3 25
$2.2B
$2.9B
Q2 25
$2.2B
$2.9B
Q1 25
$2.2B
$2.9B
Q4 24
$2.2B
$2.8B
Q3 24
$2.1B
$2.8B
Q2 24
$2.1B
$2.9B
Q1 24
$2.6B
$2.8B
Debt / Equity
NTCT
NTCT
RGEN
RGEN
Q4 25
0.26×
Q3 25
0.26×
Q2 25
Q1 25
Q4 24
0.27×
Q3 24
Q2 24
Q1 24

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
RGEN
RGEN
Operating Cash FlowLast quarter
$62.1M
$25.7M
Free Cash FlowOCF − Capex
$59.3M
$17.6M
FCF MarginFCF / Revenue
23.6%
8.9%
Capex IntensityCapex / Revenue
1.1%
4.1%
Cash ConversionOCF / Net Profit
1.13×
1.93×
TTM Free Cash FlowTrailing 4 quarters
$275.5M
$93.9M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NTCT
NTCT
RGEN
RGEN
Q4 25
$62.1M
$25.7M
Q3 25
$6.7M
$48.1M
Q2 25
$73.6M
$28.6M
Q1 25
$141.5M
$15.0M
Q4 24
$41.5M
$39.2M
Q3 24
$-3.7M
$49.3M
Q2 24
$38.4M
$42.2M
Q1 24
$93.6M
$44.7M
Free Cash Flow
NTCT
NTCT
RGEN
RGEN
Q4 25
$59.3M
$17.6M
Q3 25
$4.4M
$43.4M
Q2 25
$71.7M
$21.5M
Q1 25
$140.1M
$11.4M
Q4 24
$39.6M
$33.6M
Q3 24
$-4.6M
$42.3M
Q2 24
$37.2M
$37.4M
Q1 24
$92.0M
$36.4M
FCF Margin
NTCT
NTCT
RGEN
RGEN
Q4 25
23.6%
8.9%
Q3 25
2.0%
23.0%
Q2 25
38.4%
11.8%
Q1 25
68.4%
6.8%
Q4 24
15.7%
19.3%
Q3 24
-2.4%
27.3%
Q2 24
21.3%
24.3%
Q1 24
45.2%
24.0%
Capex Intensity
NTCT
NTCT
RGEN
RGEN
Q4 25
1.1%
4.1%
Q3 25
1.0%
2.5%
Q2 25
1.0%
3.9%
Q1 25
0.7%
2.1%
Q4 24
0.7%
3.2%
Q3 24
0.5%
4.5%
Q2 24
0.7%
3.1%
Q1 24
0.8%
5.5%
Cash Conversion
NTCT
NTCT
RGEN
RGEN
Q4 25
1.13×
1.93×
Q3 25
0.26×
3.23×
Q2 25
1.92×
Q1 25
7.60×
2.57×
Q4 24
0.85×
Q3 24
-0.41×
Q2 24
12.70×
Q1 24
21.35×

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%

RGEN
RGEN

Segment breakdown not available.

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