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Side-by-side financial comparison of AXCELIS TECHNOLOGIES INC (ACLS) and VIAVI SOLUTIONS INC. (VIAV). Click either name above to swap in a different company.

VIAVI SOLUTIONS INC. is the larger business by last-quarter revenue ($406.8M vs $238.3M, roughly 1.7× AXCELIS TECHNOLOGIES INC). AXCELIS TECHNOLOGIES INC runs the higher net margin — 14.4% vs 1.6%, a 12.8% gap on every dollar of revenue. On growth, VIAVI SOLUTIONS INC. posted the faster year-over-year revenue change (42.8% vs -5.6%). Over the past eight quarters, VIAVI SOLUTIONS INC.'s revenue compounded faster (27.1% CAGR vs -2.8%).

Axcelis Technologies, Inc. is an American company engaging in the design, manufacture, and servicing of capital equipment for the semiconductor manufacturing industry worldwide. It produces ion implantation systems, including high and medium current implanters, and high energy implanters, and curing systems used in the fabrication of semiconductor chips. The company was incorporated in 1995 and is headquartered in Beverly, Massachusetts, United States.

Viavi Solutions Inc., formerly part of JDS Uniphase Corporation (JDSU), is an American network test, measurement and assurance technology company based in Chandler, Arizona. The company manufactures testing and monitoring equipment for networks. It also develops optical technology used for a range of applications including material quality control, currency anti-counterfeiting and 3D motion sensing, including Microsoft's Kinect video game controller.

ACLS vs VIAV — Head-to-Head

Bigger by revenue
VIAV
VIAV
1.7× larger
VIAV
$406.8M
$238.3M
ACLS
Growing faster (revenue YoY)
VIAV
VIAV
+48.4% gap
VIAV
42.8%
-5.6%
ACLS
Higher net margin
ACLS
ACLS
12.8% more per $
ACLS
14.4%
1.6%
VIAV
Faster 2-yr revenue CAGR
VIAV
VIAV
Annualised
VIAV
27.1%
-2.8%
ACLS

Income Statement — Q4 FY2025 vs Q3 FY2026

Metric
ACLS
ACLS
VIAV
VIAV
Revenue
$238.3M
$406.8M
Net Profit
$34.3M
$6.4M
Gross Margin
47.0%
57.5%
Operating Margin
15.2%
6.1%
Net Margin
14.4%
1.6%
Revenue YoY
-5.6%
42.8%
Net Profit YoY
-31.3%
-76.1%
EPS (diluted)
$1.11
$0.03

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
ACLS
ACLS
VIAV
VIAV
Q1 26
$406.8M
Q4 25
$238.3M
$369.3M
Q3 25
$213.6M
$299.1M
Q2 25
$194.5M
$290.5M
Q1 25
$192.6M
$284.8M
Q4 24
$252.4M
$270.8M
Q3 24
$256.6M
$238.2M
Q2 24
$256.5M
$252.0M
Net Profit
ACLS
ACLS
VIAV
VIAV
Q1 26
$6.4M
Q4 25
$34.3M
$-48.1M
Q3 25
$26.0M
$-21.4M
Q2 25
$31.4M
$8.0M
Q1 25
$28.6M
$19.5M
Q4 24
$50.0M
$9.1M
Q3 24
$48.6M
$-1.8M
Q2 24
$50.9M
$-21.7M
Gross Margin
ACLS
ACLS
VIAV
VIAV
Q1 26
57.5%
Q4 25
47.0%
57.0%
Q3 25
41.6%
56.5%
Q2 25
44.9%
56.3%
Q1 25
46.1%
56.4%
Q4 24
46.0%
59.4%
Q3 24
42.9%
57.1%
Q2 24
43.8%
57.8%
Operating Margin
ACLS
ACLS
VIAV
VIAV
Q1 26
6.1%
Q4 25
15.2%
3.1%
Q3 25
11.7%
2.5%
Q2 25
14.9%
5.3%
Q1 25
15.1%
3.0%
Q4 24
21.6%
8.2%
Q3 24
18.3%
4.8%
Q2 24
20.6%
-2.3%
Net Margin
ACLS
ACLS
VIAV
VIAV
Q1 26
1.6%
Q4 25
14.4%
-13.0%
Q3 25
12.2%
-7.2%
Q2 25
16.1%
2.8%
Q1 25
14.8%
6.8%
Q4 24
19.8%
3.4%
Q3 24
18.9%
-0.8%
Q2 24
19.8%
-8.6%
EPS (diluted)
ACLS
ACLS
VIAV
VIAV
Q1 26
$0.03
Q4 25
$1.11
$-0.21
Q3 25
$0.83
$-0.10
Q2 25
$0.98
$0.03
Q1 25
$0.88
$0.09
Q4 24
$1.54
$0.04
Q3 24
$1.49
$-0.01
Q2 24
$1.55
$-0.10

Balance Sheet & Financial Strength

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

Metric
ACLS
ACLS
VIAV
VIAV
Cash + ST InvestmentsLiquidity on hand
$374.3M
$500.8M
Total DebtLower is stronger
$1.1B
Stockholders' EquityBook value
$1.0B
$846.5M
Total Assets
$1.4B
$2.5B
Debt / EquityLower = less leverage
1.28×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ACLS
ACLS
VIAV
VIAV
Q1 26
$500.8M
Q4 25
$374.3M
$767.4M
Q3 25
$449.6M
$545.6M
Q2 25
$549.8M
$425.3M
Q1 25
$587.1M
$396.8M
Q4 24
$571.3M
$509.4M
Q3 24
$579.4M
$493.1M
Q2 24
$548.3M
$491.2M
Total Debt
ACLS
ACLS
VIAV
VIAV
Q1 26
$1.1B
Q4 25
$1.2B
Q3 25
$640.5M
Q2 25
$396.3M
Q1 25
$396.1M
Q4 24
$639.3M
Q3 24
$637.6M
Q2 24
$636.0M
Stockholders' Equity
ACLS
ACLS
VIAV
VIAV
Q1 26
$846.5M
Q4 25
$1.0B
$834.3M
Q3 25
$1.0B
$723.9M
Q2 25
$1.0B
$780.2M
Q1 25
$1.0B
$728.8M
Q4 24
$1.0B
$682.8M
Q3 24
$975.6M
$702.1M
Q2 24
$934.9M
$681.6M
Total Assets
ACLS
ACLS
VIAV
VIAV
Q1 26
$2.5B
Q4 25
$1.4B
$2.8B
Q3 25
$1.4B
$2.1B
Q2 25
$1.3B
$2.0B
Q1 25
$1.3B
$1.9B
Q4 24
$1.3B
$1.7B
Q3 24
$1.3B
$1.7B
Q2 24
$1.3B
$1.7B
Debt / Equity
ACLS
ACLS
VIAV
VIAV
Q1 26
1.28×
Q4 25
1.46×
Q3 25
0.88×
Q2 25
0.51×
Q1 25
0.54×
Q4 24
0.94×
Q3 24
0.91×
Q2 24
0.93×

Cash Flow & Capital Efficiency

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

Metric
ACLS
ACLS
VIAV
VIAV
Operating Cash FlowLast quarter
$-6.6M
Free Cash FlowOCF − Capex
$-8.9M
FCF MarginFCF / Revenue
-3.7%
Capex IntensityCapex / Revenue
1.0%
Cash ConversionOCF / Net Profit
-0.19×
TTM Free Cash FlowTrailing 4 quarters
$107.0M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ACLS
ACLS
VIAV
VIAV
Q1 26
Q4 25
$-6.6M
$42.5M
Q3 25
$45.4M
$31.0M
Q2 25
$39.7M
$23.8M
Q1 25
$39.8M
$7.8M
Q4 24
$12.8M
$44.7M
Q3 24
$45.7M
$13.5M
Q2 24
$40.1M
$26.2M
Free Cash Flow
ACLS
ACLS
VIAV
VIAV
Q1 26
Q4 25
$-8.9M
$36.9M
Q3 25
$43.3M
$22.5M
Q2 25
$37.7M
$18.3M
Q1 25
$34.8M
$1.0M
Q4 24
$8.1M
$36.5M
Q3 24
$41.8M
$6.2M
Q2 24
$38.1M
$22.4M
FCF Margin
ACLS
ACLS
VIAV
VIAV
Q1 26
Q4 25
-3.7%
10.0%
Q3 25
20.3%
7.5%
Q2 25
19.4%
6.3%
Q1 25
18.1%
0.4%
Q4 24
3.2%
13.5%
Q3 24
16.3%
2.6%
Q2 24
14.8%
8.9%
Capex Intensity
ACLS
ACLS
VIAV
VIAV
Q1 26
Q4 25
1.0%
1.5%
Q3 25
0.9%
2.8%
Q2 25
1.0%
1.9%
Q1 25
2.6%
2.4%
Q4 24
1.8%
3.0%
Q3 24
1.5%
3.1%
Q2 24
0.8%
1.5%
Cash Conversion
ACLS
ACLS
VIAV
VIAV
Q1 26
Q4 25
-0.19×
Q3 25
1.75×
Q2 25
1.27×
2.98×
Q1 25
1.39×
0.40×
Q4 24
0.26×
4.91×
Q3 24
0.94×
Q2 24
0.79×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ACLS
ACLS

Products$224.6M94%
Services$13.7M6%

VIAV
VIAV

Segment breakdown not available.

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