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Side-by-side financial comparison of NATURAL GAS SERVICES GROUP INC (NGS) and SolarMax Technology, Inc. (SMXT). Click either name above to swap in a different company.

SolarMax Technology, Inc. is the larger business by last-quarter revenue ($46.6M vs $46.1M, roughly 1.0× NATURAL GAS SERVICES GROUP INC). NATURAL GAS SERVICES GROUP INC runs the higher net margin — 8.9% vs -1.9%, a 10.8% gap on every dollar of revenue. On growth, SolarMax Technology, Inc. posted the faster year-over-year revenue change (623.5% vs 13.5%).

Southern Company Gas, formerly AGL Resources, is an American Fortune 500 energy services holding company headquartered in Atlanta, Georgia. The company's operations consist of natural gas distribution, wholesale services, retail operations, and midstream operations. Southern Company Gas is one of the largest natural gas distribution companies in the United States. The company serves approximately 4.5 million utility customers through its regulated distribution subsidiaries across four states....

SolarMax Technology, Inc. develops, manufactures and sells high-efficiency solar PV modules and clean energy systems. It serves residential, commercial and industrial clients in North America and key Asia-Pacific markets, offering installation and after-sales support to boost low-carbon energy use.

NGS vs SMXT — Head-to-Head

Bigger by revenue
SMXT
SMXT
1.0× larger
SMXT
$46.6M
$46.1M
NGS
Growing faster (revenue YoY)
SMXT
SMXT
+610.0% gap
SMXT
623.5%
13.5%
NGS
Higher net margin
NGS
NGS
10.8% more per $
NGS
8.9%
-1.9%
SMXT

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
NGS
NGS
SMXT
SMXT
Revenue
$46.1M
$46.6M
Net Profit
$4.1M
$-872.2K
Gross Margin
2.7%
Operating Margin
15.4%
-2.7%
Net Margin
8.9%
-1.9%
Revenue YoY
13.5%
623.5%
Net Profit YoY
43.2%
77.7%
EPS (diluted)
$0.32
$-0.02

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
NGS
NGS
SMXT
SMXT
Q4 25
$46.1M
$46.6M
Q3 25
$43.4M
$30.6M
Q2 25
$41.4M
$6.9M
Q1 25
$41.4M
$6.9M
Q4 24
$40.7M
$6.4M
Q3 24
$6.3M
Net Profit
NGS
NGS
SMXT
SMXT
Q4 25
$4.1M
$-872.2K
Q3 25
$5.8M
$-2.3M
Q2 25
$5.2M
$-1.9M
Q1 25
$4.9M
$-1.3M
Q4 24
$2.9M
$-3.9M
Q3 24
$-9.6M
Gross Margin
NGS
NGS
SMXT
SMXT
Q4 25
2.7%
Q3 25
3.1%
Q2 25
8.8%
Q1 25
20.5%
Q4 24
14.5%
Q3 24
19.9%
Operating Margin
NGS
NGS
SMXT
SMXT
Q4 25
15.4%
-2.7%
Q3 25
24.8%
-6.9%
Q2 25
24.0%
-25.7%
Q1 25
23.0%
-16.7%
Q4 24
14.9%
-27.9%
Q3 24
-158.4%
Net Margin
NGS
NGS
SMXT
SMXT
Q4 25
8.9%
-1.9%
Q3 25
13.3%
-7.4%
Q2 25
12.5%
-27.6%
Q1 25
11.7%
-18.7%
Q4 24
7.0%
-60.6%
Q3 24
-152.0%
EPS (diluted)
NGS
NGS
SMXT
SMXT
Q4 25
$0.32
$-0.02
Q3 25
$0.46
$-0.04
Q2 25
$0.41
$-0.04
Q1 25
$0.38
$-0.03
Q4 24
$0.22
$-0.07
Q3 24
$-0.21

Balance Sheet & Financial Strength

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

Metric
NGS
NGS
SMXT
SMXT
Cash + ST InvestmentsLiquidity on hand
$8.0M
Total DebtLower is stronger
Stockholders' EquityBook value
$274.7M
$-12.2M
Total Assets
$586.8M
$91.3M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
NGS
NGS
SMXT
SMXT
Q4 25
$8.0M
Q3 25
$5.7M
Q2 25
$325.0K
$1.9M
Q1 25
$2.1M
$6.8M
Q4 24
$2.1M
$7.1M
Q3 24
$8.6M
Stockholders' Equity
NGS
NGS
SMXT
SMXT
Q4 25
$274.7M
$-12.2M
Q3 25
$271.4M
$-11.8M
Q2 25
$266.2M
$-15.1M
Q1 25
$260.3M
$-15.9M
Q4 24
$255.1M
$-15.1M
Q3 24
$-10.9M
Total Assets
NGS
NGS
SMXT
SMXT
Q4 25
$586.8M
$91.3M
Q3 25
$562.3M
$58.7M
Q2 25
$525.5M
$38.2M
Q1 25
$501.7M
$38.6M
Q4 24
$492.5M
$38.6M
Q3 24
$43.0M

Cash Flow & Capital Efficiency

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

Metric
NGS
NGS
SMXT
SMXT
Operating Cash FlowLast quarter
$13.9M
$-2.5M
Free Cash FlowOCF − Capex
$-20.7M
FCF MarginFCF / Revenue
-44.8%
Capex IntensityCapex / Revenue
74.9%
Cash ConversionOCF / Net Profit
3.38×
TTM Free Cash FlowTrailing 4 quarters
$-58.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
NGS
NGS
SMXT
SMXT
Q4 25
$13.9M
$-2.5M
Q3 25
$16.8M
$3.4M
Q2 25
$11.0M
$220.7K
Q1 25
$21.3M
$-601.1K
Q4 24
$9.4M
$-1.3M
Q3 24
$203.6K
Free Cash Flow
NGS
NGS
SMXT
SMXT
Q4 25
$-20.7M
Q3 25
$-25.1M
Q2 25
$-14.8M
Q1 25
$2.0M
Q4 24
$-5.1M
Q3 24
FCF Margin
NGS
NGS
SMXT
SMXT
Q4 25
-44.8%
Q3 25
-57.7%
Q2 25
-35.8%
Q1 25
4.9%
Q4 24
-12.6%
Q3 24
Capex Intensity
NGS
NGS
SMXT
SMXT
Q4 25
74.9%
Q3 25
96.5%
Q2 25
62.4%
Q1 25
46.5%
Q4 24
35.8%
Q3 24
0.0%
Cash Conversion
NGS
NGS
SMXT
SMXT
Q4 25
3.38×
Q3 25
2.90×
Q2 25
2.12×
Q1 25
4.38×
Q4 24
3.29×
Q3 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

NGS
NGS

Segment breakdown not available.

SMXT
SMXT

Yabucoa$35.9M77%
Other$10.7M23%

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