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

Enphase Energy is the larger business by last-quarter revenue ($282.9M vs $247.2M, roughly 1.1× TANDEM DIABETES CARE INC). Enphase Energy runs the higher net margin — -2.6% vs -8.2%, a 5.6% gap on every dollar of revenue. On growth, TANDEM DIABETES CARE INC posted the faster year-over-year revenue change (5.5% vs -20.6%). Over the past eight quarters, TANDEM DIABETES CARE INC's revenue compounded faster (5.5% 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.

Tandem Diabetes Care, Inc. is an American medical device manufacturer based in San Diego, California. The company develops medical technologies for the treatment of diabetes and specifically insulin infusion therapy.

ENPH vs TNDM — Head-to-Head

Bigger by revenue
ENPH
ENPH
1.1× larger
ENPH
$282.9M
$247.2M
TNDM
Growing faster (revenue YoY)
TNDM
TNDM
+26.0% gap
TNDM
5.5%
-20.6%
ENPH
Higher net margin
ENPH
ENPH
5.6% more per $
ENPH
-2.6%
-8.2%
TNDM
Faster 2-yr revenue CAGR
TNDM
TNDM
Annualised
TNDM
5.5%
-3.4%
ENPH

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
ENPH
ENPH
TNDM
TNDM
Revenue
$282.9M
$247.2M
Net Profit
$-7.4M
$-20.4M
Gross Margin
35.5%
55.3%
Operating Margin
54.0%
37.6%
Net Margin
-2.6%
-8.2%
Revenue YoY
-20.6%
5.5%
Net Profit YoY
-124.9%
EPS (diluted)
$-0.06
$-0.30

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
TNDM
TNDM
Q1 26
$282.9M
$247.2M
Q4 25
$343.3M
$290.4M
Q3 25
$410.4M
$249.3M
Q2 25
$363.2M
$240.7M
Q1 25
$356.1M
$234.4M
Q4 24
$382.7M
$282.6M
Q3 24
$380.9M
$244.0M
Q2 24
$303.5M
$221.9M
Net Profit
ENPH
ENPH
TNDM
TNDM
Q1 26
$-7.4M
$-20.4M
Q4 25
$38.7M
$-589.0K
Q3 25
$66.6M
$-21.2M
Q2 25
$37.1M
$-52.4M
Q1 25
$29.7M
$-130.6M
Q4 24
$62.2M
$755.0K
Q3 24
$45.8M
$-23.3M
Q2 24
$10.8M
$-30.8M
Gross Margin
ENPH
ENPH
TNDM
TNDM
Q1 26
35.5%
55.3%
Q4 25
44.3%
57.7%
Q3 25
47.8%
53.9%
Q2 25
46.9%
52.3%
Q1 25
47.2%
50.5%
Q4 24
51.8%
55.7%
Q3 24
46.8%
51.1%
Q2 24
45.2%
50.8%
Operating Margin
ENPH
ENPH
TNDM
TNDM
Q1 26
54.0%
37.6%
Q4 25
6.5%
2.9%
Q3 25
16.1%
-9.2%
Q2 25
10.2%
-21.5%
Q1 25
9.0%
-51.6%
Q4 24
14.3%
-0.2%
Q3 24
13.1%
-10.7%
Q2 24
0.6%
-13.9%
Net Margin
ENPH
ENPH
TNDM
TNDM
Q1 26
-2.6%
-8.2%
Q4 25
11.3%
-0.2%
Q3 25
16.2%
-8.5%
Q2 25
10.2%
-21.8%
Q1 25
8.3%
-55.7%
Q4 24
16.2%
0.3%
Q3 24
12.0%
-9.5%
Q2 24
3.6%
-13.9%
EPS (diluted)
ENPH
ENPH
TNDM
TNDM
Q1 26
$-0.06
$-0.30
Q4 25
$0.29
$0.02
Q3 25
$0.50
$-0.31
Q2 25
$0.28
$-0.78
Q1 25
$0.22
$-1.97
Q4 24
$0.46
$0.00
Q3 24
$0.33
$-0.35
Q2 24
$0.08
$-0.47

Balance Sheet & Financial Strength

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

Metric
ENPH
ENPH
TNDM
TNDM
Cash + ST InvestmentsLiquidity on hand
$497.5M
$570.3M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.1B
$132.4M
Total Assets
$2.7B
$1.2B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ENPH
ENPH
TNDM
TNDM
Q1 26
$497.5M
$570.3M
Q4 25
$1.5B
$292.7M
Q3 25
$1.5B
$319.1M
Q2 25
$1.5B
$315.4M
Q1 25
$1.5B
$368.6M
Q4 24
$1.6B
$438.3M
Q3 24
$1.8B
$473.3M
Q2 24
$1.6B
$452.4M
Total Debt
ENPH
ENPH
TNDM
TNDM
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
TNDM
TNDM
Q1 26
$1.1B
$132.4M
Q4 25
$1.1B
$155.2M
Q3 25
$995.0M
$133.0M
Q2 25
$880.6M
$133.3M
Q1 25
$810.7M
$155.3M
Q4 24
$833.0M
$263.1M
Q3 24
$931.4M
$237.7M
Q2 24
$884.5M
$233.9M
Total Assets
ENPH
ENPH
TNDM
TNDM
Q1 26
$2.7B
$1.2B
Q4 25
$3.5B
$881.1M
Q3 25
$3.3B
$874.7M
Q2 25
$3.2B
$875.7M
Q1 25
$3.1B
$922.1M
Q4 24
$3.2B
$967.7M
Q3 24
$3.3B
$957.7M
Q2 24
$3.2B
$937.5M
Debt / Equity
ENPH
ENPH
TNDM
TNDM
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
TNDM
TNDM
Operating Cash FlowLast quarter
$102.9M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
2.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ENPH
ENPH
TNDM
TNDM
Q1 26
$102.9M
Q4 25
$47.6M
$9.8M
Q3 25
$13.9M
$8.3M
Q2 25
$26.6M
$-9.5M
Q1 25
$48.4M
$-18.3M
Q4 24
$167.3M
$10.7M
Q3 24
$170.1M
$26.8M
Q2 24
$127.1M
$-5.3M
Free Cash Flow
ENPH
ENPH
TNDM
TNDM
Q1 26
Q4 25
$37.8M
$3.1M
Q3 25
$5.9M
$4.2M
Q2 25
$18.4M
$-15.7M
Q1 25
$33.8M
$-21.2M
Q4 24
$159.2M
$7.6M
Q3 24
$161.6M
$21.5M
Q2 24
$117.4M
$-11.7M
FCF Margin
ENPH
ENPH
TNDM
TNDM
Q1 26
Q4 25
11.0%
1.1%
Q3 25
1.4%
1.7%
Q2 25
5.1%
-6.5%
Q1 25
9.5%
-9.1%
Q4 24
41.6%
2.7%
Q3 24
42.4%
8.8%
Q2 24
38.7%
-5.3%
Capex Intensity
ENPH
ENPH
TNDM
TNDM
Q1 26
2.5%
Q4 25
2.8%
2.3%
Q3 25
2.0%
1.6%
Q2 25
2.3%
2.6%
Q1 25
4.1%
1.3%
Q4 24
2.1%
1.1%
Q3 24
2.2%
2.1%
Q2 24
3.2%
2.9%
Cash Conversion
ENPH
ENPH
TNDM
TNDM
Q1 26
Q4 25
1.23×
Q3 25
0.21×
Q2 25
0.72×
Q1 25
1.63×
Q4 24
2.69×
14.19×
Q3 24
3.72×
Q2 24
11.73×

Financial Flow Comparison

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

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