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Side-by-side financial comparison of Enphase Energy (ENPH) and Inspire Medical Systems, Inc. (INSP). Click either name above to swap in a different company.

Enphase Energy is the larger business by last-quarter revenue ($282.9M vs $269.1M, roughly 1.1× Inspire Medical Systems, Inc.). Inspire Medical Systems, Inc. runs the higher net margin — 50.6% vs -2.6%, a 53.2% gap on every dollar of revenue. On growth, Inspire Medical Systems, Inc. posted the faster year-over-year revenue change (12.2% vs -20.6%). Enphase Energy produced more free cash flow last quarter ($83.0M vs $41.8M). Over the past eight quarters, Inspire Medical Systems, Inc.'s revenue compounded faster (28.1% 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.

Inspire Medical Systems, Inc. is a medical technology firm that develops, manufactures and commercializes implantable neurostimulation solutions for obstructive sleep apnea. Its core product serves patients intolerant to CPAP therapy, with main markets across North America, Europe, and select Asia-Pacific regions, operating in sleep medicine and otolaryngology segments.

ENPH vs INSP — Head-to-Head

Bigger by revenue
ENPH
ENPH
1.1× larger
ENPH
$282.9M
$269.1M
INSP
Growing faster (revenue YoY)
INSP
INSP
+32.8% gap
INSP
12.2%
-20.6%
ENPH
Higher net margin
INSP
INSP
53.2% more per $
INSP
50.6%
-2.6%
ENPH
More free cash flow
ENPH
ENPH
$41.2M more FCF
ENPH
$83.0M
$41.8M
INSP
Faster 2-yr revenue CAGR
INSP
INSP
Annualised
INSP
28.1%
-3.4%
ENPH

Income Statement — Q1 FY2026 vs Q4 FY2025

Metric
ENPH
ENPH
INSP
INSP
Revenue
$282.9M
$269.1M
Net Profit
$-7.4M
$136.1M
Gross Margin
35.5%
86.6%
Operating Margin
17.1%
Net Margin
-2.6%
50.6%
Revenue YoY
-20.6%
12.2%
Net Profit YoY
-124.9%
286.4%
EPS (diluted)
$-0.06
$4.57

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
INSP
INSP
Q1 26
$282.9M
Q4 25
$343.3M
$269.1M
Q3 25
$410.4M
$224.5M
Q2 25
$363.2M
$217.1M
Q1 25
$356.1M
$201.3M
Q4 24
$382.7M
$239.7M
Q3 24
$380.9M
$203.2M
Q2 24
$303.5M
$195.9M
Net Profit
ENPH
ENPH
INSP
INSP
Q1 26
$-7.4M
Q4 25
$38.7M
$136.1M
Q3 25
$66.6M
$9.9M
Q2 25
$37.1M
$-3.6M
Q1 25
$29.7M
$3.0M
Q4 24
$62.2M
$35.2M
Q3 24
$45.8M
$18.5M
Q2 24
$10.8M
$9.8M
Gross Margin
ENPH
ENPH
INSP
INSP
Q1 26
35.5%
Q4 25
44.3%
86.6%
Q3 25
47.8%
85.8%
Q2 25
46.9%
84.0%
Q1 25
47.2%
84.7%
Q4 24
51.8%
85.0%
Q3 24
46.8%
84.1%
Q2 24
45.2%
84.8%
Operating Margin
ENPH
ENPH
INSP
INSP
Q1 26
Q4 25
6.5%
17.1%
Q3 25
16.1%
4.3%
Q2 25
10.2%
-1.5%
Q1 25
9.0%
-0.7%
Q4 24
14.3%
13.3%
Q3 24
13.1%
7.0%
Q2 24
0.6%
2.6%
Net Margin
ENPH
ENPH
INSP
INSP
Q1 26
-2.6%
Q4 25
11.3%
50.6%
Q3 25
16.2%
4.4%
Q2 25
10.2%
-1.7%
Q1 25
8.3%
1.5%
Q4 24
16.2%
14.7%
Q3 24
12.0%
9.1%
Q2 24
3.6%
5.0%
EPS (diluted)
ENPH
ENPH
INSP
INSP
Q1 26
$-0.06
Q4 25
$0.29
$4.57
Q3 25
$0.50
$0.34
Q2 25
$0.28
$-0.12
Q1 25
$0.22
$0.10
Q4 24
$0.46
$1.17
Q3 24
$0.33
$0.60
Q2 24
$0.08
$0.32

Balance Sheet & Financial Strength

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

Metric
ENPH
ENPH
INSP
INSP
Cash + ST InvestmentsLiquidity on hand
$497.5M
$308.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.1B
$781.2M
Total Assets
$2.7B
$907.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ENPH
ENPH
INSP
INSP
Q1 26
$497.5M
Q4 25
$1.5B
$308.3M
Q3 25
$1.5B
$322.6M
Q2 25
$1.5B
$300.9M
Q1 25
$1.5B
$369.2M
Q4 24
$1.6B
$445.5M
Q3 24
$1.8B
$411.0M
Q2 24
$1.6B
$439.7M
Total Debt
ENPH
ENPH
INSP
INSP
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
INSP
INSP
Q1 26
$1.1B
Q4 25
$1.1B
$781.2M
Q3 25
$995.0M
$666.5M
Q2 25
$880.6M
$677.8M
Q1 25
$810.7M
$635.7M
Q4 24
$833.0M
$689.7M
Q3 24
$931.4M
$696.6M
Q2 24
$884.5M
$638.1M
Total Assets
ENPH
ENPH
INSP
INSP
Q1 26
$2.7B
Q4 25
$3.5B
$907.3M
Q3 25
$3.3B
$807.7M
Q2 25
$3.2B
$802.2M
Q1 25
$3.1B
$730.8M
Q4 24
$3.2B
$808.4M
Q3 24
$3.3B
$796.2M
Q2 24
$3.2B
$728.4M
Debt / Equity
ENPH
ENPH
INSP
INSP
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
INSP
INSP
Operating Cash FlowLast quarter
$102.9M
$52.5M
Free Cash FlowOCF − Capex
$83.0M
$41.8M
FCF MarginFCF / Revenue
29.3%
15.5%
Capex IntensityCapex / Revenue
4.0%
Cash ConversionOCF / Net Profit
0.39×
TTM Free Cash FlowTrailing 4 quarters
$145.1M
$78.5M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ENPH
ENPH
INSP
INSP
Q1 26
$102.9M
Q4 25
$47.6M
$52.5M
Q3 25
$13.9M
$68.5M
Q2 25
$26.6M
$2.7M
Q1 25
$48.4M
$-6.7M
Q4 24
$167.3M
$69.2M
Q3 24
$170.1M
$52.3M
Q2 24
$127.1M
$-78.0K
Free Cash Flow
ENPH
ENPH
INSP
INSP
Q1 26
$83.0M
Q4 25
$37.8M
$41.8M
Q3 25
$5.9M
$58.1M
Q2 25
$18.4M
$-6.3M
Q1 25
$33.8M
$-15.1M
Q4 24
$159.2M
$62.2M
Q3 24
$161.6M
$44.3M
Q2 24
$117.4M
$-12.5M
FCF Margin
ENPH
ENPH
INSP
INSP
Q1 26
29.3%
Q4 25
11.0%
15.5%
Q3 25
1.4%
25.9%
Q2 25
5.1%
-2.9%
Q1 25
9.5%
-7.5%
Q4 24
41.6%
25.9%
Q3 24
42.4%
21.8%
Q2 24
38.7%
-6.4%
Capex Intensity
ENPH
ENPH
INSP
INSP
Q1 26
Q4 25
2.8%
4.0%
Q3 25
2.0%
4.6%
Q2 25
2.3%
4.1%
Q1 25
4.1%
4.2%
Q4 24
2.1%
2.9%
Q3 24
2.2%
3.9%
Q2 24
3.2%
6.3%
Cash Conversion
ENPH
ENPH
INSP
INSP
Q1 26
Q4 25
1.23×
0.39×
Q3 25
0.21×
6.90×
Q2 25
0.72×
Q1 25
1.63×
-2.24×
Q4 24
2.69×
1.96×
Q3 24
3.72×
2.83×
Q2 24
11.73×
-0.01×

Financial Flow Comparison

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

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