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Side-by-side financial comparison of Enphase Energy (ENPH) and ONTO INNOVATION INC. (ONTO). Click either name above to swap in a different company.

Enphase Energy is the larger business by last-quarter revenue ($282.9M vs $218.2M, roughly 1.3× ONTO INNOVATION INC.). ONTO INNOVATION INC. runs the higher net margin — 12.9% vs -2.6%, a 15.6% gap on every dollar of revenue. On growth, ONTO INNOVATION INC. posted the faster year-over-year revenue change (-13.5% vs -20.6%). Enphase Energy produced more free cash flow last quarter ($83.0M vs $82.0M). Over the past eight quarters, ONTO INNOVATION INC.'s revenue compounded faster (2.6% CAGR vs -3.4%).

Enphase Energy, Inc. is an American energy technology company headquartered in Fremont, California, that develops and manufactures solar micro-inverters, battery energy storage, and EV charging stations primarily for residential customers. Enphase was established in 2006 and is the first company to successfully commercialize solar micro-inverters, which convert the direct current (DC) power generated by solar panels into grid-compatible alternating current (AC) for use or export.

Onto Innovation Inc. is an American semiconductor company formed in 2019 from the merger of Rudolph Technologies, Inc. and Nanometrics Incorporated. It is a provider of process and process control equipment and software for microelectronic manufacturing industries.

ENPH vs ONTO — Head-to-Head

Bigger by revenue
ENPH
ENPH
1.3× larger
ENPH
$282.9M
$218.2M
ONTO
Growing faster (revenue YoY)
ONTO
ONTO
+7.1% gap
ONTO
-13.5%
-20.6%
ENPH
Higher net margin
ONTO
ONTO
15.6% more per $
ONTO
12.9%
-2.6%
ENPH
More free cash flow
ENPH
ENPH
$956.0K more FCF
ENPH
$83.0M
$82.0M
ONTO
Faster 2-yr revenue CAGR
ONTO
ONTO
Annualised
ONTO
2.6%
-3.4%
ENPH

Income Statement — Q1 FY2026 vs Q3 FY2025

Metric
ENPH
ENPH
ONTO
ONTO
Revenue
$282.9M
$218.2M
Net Profit
$-7.4M
$28.2M
Gross Margin
35.5%
50.7%
Operating Margin
54.0%
10.9%
Net Margin
-2.6%
12.9%
Revenue YoY
-20.6%
-13.5%
Net Profit YoY
-124.9%
-46.8%
EPS (diluted)
$-0.06
$0.57

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
ENPH
ENPH
ONTO
ONTO
Q1 26
$282.9M
Q4 25
$343.3M
Q3 25
$410.4M
$218.2M
Q2 25
$363.2M
$253.6M
Q1 25
$356.1M
$266.6M
Q4 24
$382.7M
$263.9M
Q3 24
$380.9M
$252.2M
Q2 24
$303.5M
$242.3M
Net Profit
ENPH
ENPH
ONTO
ONTO
Q1 26
$-7.4M
Q4 25
$38.7M
Q3 25
$66.6M
$28.2M
Q2 25
$37.1M
$33.9M
Q1 25
$29.7M
$64.1M
Q4 24
$62.2M
$48.8M
Q3 24
$45.8M
$53.1M
Q2 24
$10.8M
$52.9M
Gross Margin
ENPH
ENPH
ONTO
ONTO
Q1 26
35.5%
Q4 25
44.3%
Q3 25
47.8%
50.7%
Q2 25
46.9%
48.2%
Q1 25
47.2%
53.7%
Q4 24
51.8%
50.2%
Q3 24
46.8%
54.1%
Q2 24
45.2%
52.9%
Operating Margin
ENPH
ENPH
ONTO
ONTO
Q1 26
54.0%
Q4 25
6.5%
Q3 25
16.1%
10.9%
Q2 25
10.2%
12.7%
Q1 25
9.0%
23.7%
Q4 24
14.3%
16.1%
Q3 24
13.1%
21.0%
Q2 24
0.6%
20.2%
Net Margin
ENPH
ENPH
ONTO
ONTO
Q1 26
-2.6%
Q4 25
11.3%
Q3 25
16.2%
12.9%
Q2 25
10.2%
13.4%
Q1 25
8.3%
24.0%
Q4 24
16.2%
18.5%
Q3 24
12.0%
21.0%
Q2 24
3.6%
21.9%
EPS (diluted)
ENPH
ENPH
ONTO
ONTO
Q1 26
$-0.06
Q4 25
$0.29
Q3 25
$0.50
$0.57
Q2 25
$0.28
$0.69
Q1 25
$0.22
$1.30
Q4 24
$0.46
$0.98
Q3 24
$0.33
$1.07
Q2 24
$0.08
$1.07

Balance Sheet & Financial Strength

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

Metric
ENPH
ENPH
ONTO
ONTO
Cash + ST InvestmentsLiquidity on hand
$497.5M
$603.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.1B
$2.0B
Total Assets
$2.7B
$2.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ENPH
ENPH
ONTO
ONTO
Q1 26
$497.5M
Q4 25
$1.5B
Q3 25
$1.5B
$603.1M
Q2 25
$1.5B
$217.5M
Q1 25
$1.5B
$203.7M
Q4 24
$1.6B
$212.9M
Q3 24
$1.8B
$188.7M
Q2 24
$1.6B
$172.6M
Total Debt
ENPH
ENPH
ONTO
ONTO
Q1 26
Q4 25
$1.2B
Q3 25
$1.2B
Q2 25
$1.2B
Q1 25
$1.2B
Q4 24
$1.3B
Q3 24
$1.3B
Q2 24
$1.3B
Stockholders' Equity
ENPH
ENPH
ONTO
ONTO
Q1 26
$1.1B
Q4 25
$1.1B
Q3 25
$995.0M
$2.0B
Q2 25
$880.6M
$2.0B
Q1 25
$810.7M
$1.9B
Q4 24
$833.0M
$1.9B
Q3 24
$931.4M
$1.9B
Q2 24
$884.5M
$1.8B
Total Assets
ENPH
ENPH
ONTO
ONTO
Q1 26
$2.7B
Q4 25
$3.5B
Q3 25
$3.3B
$2.2B
Q2 25
$3.2B
$2.1B
Q1 25
$3.1B
$2.1B
Q4 24
$3.2B
$2.1B
Q3 24
$3.3B
$2.1B
Q2 24
$3.2B
$2.0B
Debt / Equity
ENPH
ENPH
ONTO
ONTO
Q1 26
Q4 25
1.11×
Q3 25
1.21×
Q2 25
1.37×
Q1 25
1.48×
Q4 24
1.56×
Q3 24
1.40×
Q2 24
1.47×

Cash Flow & Capital Efficiency

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

Metric
ENPH
ENPH
ONTO
ONTO
Operating Cash FlowLast quarter
$102.9M
$83.4M
Free Cash FlowOCF − Capex
$83.0M
$82.0M
FCF MarginFCF / Revenue
29.3%
37.6%
Capex IntensityCapex / Revenue
0.6%
Cash ConversionOCF / Net Profit
2.95×
TTM Free Cash FlowTrailing 4 quarters
$145.1M
$261.3M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ENPH
ENPH
ONTO
ONTO
Q1 26
$102.9M
Q4 25
$47.6M
Q3 25
$13.9M
$83.4M
Q2 25
$26.6M
$57.9M
Q1 25
$48.4M
$92.0M
Q4 24
$167.3M
$56.0M
Q3 24
$170.1M
$67.2M
Q2 24
$127.1M
$65.3M
Free Cash Flow
ENPH
ENPH
ONTO
ONTO
Q1 26
$83.0M
Q4 25
$37.8M
Q3 25
$5.9M
$82.0M
Q2 25
$18.4M
$44.2M
Q1 25
$33.8M
$83.7M
Q4 24
$159.2M
$51.4M
Q3 24
$161.6M
$59.2M
Q2 24
$117.4M
$53.0M
FCF Margin
ENPH
ENPH
ONTO
ONTO
Q1 26
29.3%
Q4 25
11.0%
Q3 25
1.4%
37.6%
Q2 25
5.1%
17.4%
Q1 25
9.5%
31.4%
Q4 24
41.6%
19.5%
Q3 24
42.4%
23.5%
Q2 24
38.7%
21.9%
Capex Intensity
ENPH
ENPH
ONTO
ONTO
Q1 26
Q4 25
2.8%
Q3 25
2.0%
0.6%
Q2 25
2.3%
5.4%
Q1 25
4.1%
3.1%
Q4 24
2.1%
1.8%
Q3 24
2.2%
3.2%
Q2 24
3.2%
5.1%
Cash Conversion
ENPH
ENPH
ONTO
ONTO
Q1 26
Q4 25
1.23×
Q3 25
0.21×
2.95×
Q2 25
0.72×
1.71×
Q1 25
1.63×
1.44×
Q4 24
2.69×
1.15×
Q3 24
3.72×
1.27×
Q2 24
11.73×
1.23×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ENPH
ENPH

Segment breakdown not available.

ONTO
ONTO

Systems And Software Revenue$173.8M80%
Parts Revenue$23.9M11%
Service Revenue$20.5M9%

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