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

INNOSPEC INC. is the larger business by last-quarter revenue ($453.2M vs $282.9M, roughly 1.6× Enphase Energy). INNOSPEC INC. runs the higher net margin — 6.8% vs -2.6%, a 9.4% gap on every dollar of revenue. On growth, INNOSPEC INC. posted the faster year-over-year revenue change (2.8% vs -20.6%). Over the past eight quarters, INNOSPEC INC.'s revenue compounded faster (2.1% 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.

Innospec Inc., formerly known as Octel Corporation and Associated Octel Company, Ltd., is an American specialty chemical company. It comprises three business units:The Performance Chemicals business trades in the personal care, home care, agrochemical, mining and industrial markets. The Fuel Specialties business specializes in manufacturing and supplying fuel additives. The Oilfield Services business supplies drilling, completion and production chemicals.

ENPH vs IOSP — Head-to-Head

Bigger by revenue
IOSP
IOSP
1.6× larger
IOSP
$453.2M
$282.9M
ENPH
Growing faster (revenue YoY)
IOSP
IOSP
+23.4% gap
IOSP
2.8%
-20.6%
ENPH
Higher net margin
IOSP
IOSP
9.4% more per $
IOSP
6.8%
-2.6%
ENPH
Faster 2-yr revenue CAGR
IOSP
IOSP
Annualised
IOSP
2.1%
-3.4%
ENPH

Income Statement — Q1 FY2026 vs Q1 FY2026

Metric
ENPH
ENPH
IOSP
IOSP
Revenue
$282.9M
$453.2M
Net Profit
$-7.4M
$30.8M
Gross Margin
35.5%
27.3%
Operating Margin
54.0%
8.1%
Net Margin
-2.6%
6.8%
Revenue YoY
-20.6%
2.8%
Net Profit YoY
-124.9%
-8.3%
EPS (diluted)
$-0.06
$1.22

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
IOSP
IOSP
Q1 26
$282.9M
$453.2M
Q4 25
$343.3M
$455.6M
Q3 25
$410.4M
$441.9M
Q2 25
$363.2M
$439.7M
Q1 25
$356.1M
$440.8M
Q4 24
$382.7M
$466.8M
Q3 24
$380.9M
$443.4M
Q2 24
$303.5M
$435.0M
Net Profit
ENPH
ENPH
IOSP
IOSP
Q1 26
$-7.4M
$30.8M
Q4 25
$38.7M
$47.4M
Q3 25
$66.6M
$12.9M
Q2 25
$37.1M
$23.5M
Q1 25
$29.7M
$32.8M
Q4 24
$62.2M
$-70.4M
Q3 24
$45.8M
$33.4M
Q2 24
$10.8M
$31.2M
Gross Margin
ENPH
ENPH
IOSP
IOSP
Q1 26
35.5%
27.3%
Q4 25
44.3%
28.0%
Q3 25
47.8%
26.4%
Q2 25
46.9%
28.0%
Q1 25
47.2%
28.4%
Q4 24
51.8%
29.2%
Q3 24
46.8%
28.0%
Q2 24
45.2%
29.2%
Operating Margin
ENPH
ENPH
IOSP
IOSP
Q1 26
54.0%
8.1%
Q4 25
6.5%
10.3%
Q3 25
16.1%
1.3%
Q2 25
10.2%
7.8%
Q1 25
9.0%
9.6%
Q4 24
14.3%
8.8%
Q3 24
13.1%
10.3%
Q2 24
0.6%
9.4%
Net Margin
ENPH
ENPH
IOSP
IOSP
Q1 26
-2.6%
6.8%
Q4 25
11.3%
10.4%
Q3 25
16.2%
2.9%
Q2 25
10.2%
5.3%
Q1 25
8.3%
7.4%
Q4 24
16.2%
-15.1%
Q3 24
12.0%
7.5%
Q2 24
3.6%
7.2%
EPS (diluted)
ENPH
ENPH
IOSP
IOSP
Q1 26
$-0.06
$1.22
Q4 25
$0.29
$1.90
Q3 25
$0.50
$0.52
Q2 25
$0.28
$0.94
Q1 25
$0.22
$1.31
Q4 24
$0.46
$-2.80
Q3 24
$0.33
$1.33
Q2 24
$0.08
$1.24

Balance Sheet & Financial Strength

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

Metric
ENPH
ENPH
IOSP
IOSP
Cash + ST InvestmentsLiquidity on hand
$497.5M
$289.1M
Total DebtLower is stronger
Stockholders' EquityBook value
$1.1B
$1.4B
Total Assets
$2.7B
$1.8B
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ENPH
ENPH
IOSP
IOSP
Q1 26
$497.5M
$289.1M
Q4 25
$1.5B
$292.5M
Q3 25
$1.5B
$270.8M
Q2 25
$1.5B
$266.6M
Q1 25
$1.5B
$299.8M
Q4 24
$1.6B
$289.2M
Q3 24
$1.8B
$303.8M
Q2 24
$1.6B
$240.2M
Total Debt
ENPH
ENPH
IOSP
IOSP
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
IOSP
IOSP
Q1 26
$1.1B
$1.4B
Q4 25
$1.1B
$1.3B
Q3 25
$995.0M
$1.3B
Q2 25
$880.6M
$1.3B
Q1 25
$810.7M
$1.3B
Q4 24
$833.0M
$1.2B
Q3 24
$931.4M
$1.2B
Q2 24
$884.5M
$1.2B
Total Assets
ENPH
ENPH
IOSP
IOSP
Q1 26
$2.7B
$1.8B
Q4 25
$3.5B
$1.8B
Q3 25
$3.3B
$1.8B
Q2 25
$3.2B
$1.8B
Q1 25
$3.1B
$1.8B
Q4 24
$3.2B
$1.7B
Q3 24
$3.3B
$1.8B
Q2 24
$3.2B
$1.7B
Debt / Equity
ENPH
ENPH
IOSP
IOSP
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
IOSP
IOSP
Operating Cash FlowLast quarter
$102.9M
$17.6M
Free Cash FlowOCF − Capex
FCF MarginFCF / Revenue
Capex IntensityCapex / Revenue
2.0%
Cash ConversionOCF / Net Profit
0.57×
TTM Free Cash FlowTrailing 4 quarters

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ENPH
ENPH
IOSP
IOSP
Q1 26
$102.9M
$17.6M
Q4 25
$47.6M
$61.4M
Q3 25
$13.9M
$39.3M
Q2 25
$26.6M
$9.3M
Q1 25
$48.4M
$28.3M
Q4 24
$167.3M
$25.7M
Q3 24
$170.1M
$73.5M
Q2 24
$127.1M
$4.7M
Free Cash Flow
ENPH
ENPH
IOSP
IOSP
Q1 26
Q4 25
$37.8M
$46.8M
Q3 25
$5.9M
$25.0M
Q2 25
$18.4M
$-3.7M
Q1 25
$33.8M
$19.9M
Q4 24
$159.2M
$13.6M
Q3 24
$161.6M
$65.8M
Q2 24
$117.4M
$-6.2M
FCF Margin
ENPH
ENPH
IOSP
IOSP
Q1 26
Q4 25
11.0%
10.3%
Q3 25
1.4%
5.7%
Q2 25
5.1%
-0.8%
Q1 25
9.5%
4.5%
Q4 24
41.6%
2.9%
Q3 24
42.4%
14.8%
Q2 24
38.7%
-1.4%
Capex Intensity
ENPH
ENPH
IOSP
IOSP
Q1 26
2.0%
Q4 25
2.8%
3.2%
Q3 25
2.0%
3.2%
Q2 25
2.3%
3.0%
Q1 25
4.1%
1.9%
Q4 24
2.1%
2.6%
Q3 24
2.2%
1.7%
Q2 24
3.2%
2.5%
Cash Conversion
ENPH
ENPH
IOSP
IOSP
Q1 26
0.57×
Q4 25
1.23×
1.30×
Q3 25
0.21×
3.05×
Q2 25
0.72×
0.40×
Q1 25
1.63×
0.86×
Q4 24
2.69×
Q3 24
3.72×
2.20×
Q2 24
11.73×
0.15×

Financial Flow Comparison

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

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