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Side-by-side financial comparison of DIAMOND HILL INVESTMENT GROUP INC (DHIL) and NATURAL GAS SERVICES GROUP INC (NGS). Click either name above to swap in a different company.

NATURAL GAS SERVICES GROUP INC is the larger business by last-quarter revenue ($46.1M vs $36.6M, roughly 1.3× DIAMOND HILL INVESTMENT GROUP INC). DIAMOND HILL INVESTMENT GROUP INC runs the higher net margin — 25.3% vs 8.9%, a 16.5% gap on every dollar of revenue. On growth, NATURAL GAS SERVICES GROUP INC posted the faster year-over-year revenue change (13.5% vs -6.6%). DIAMOND HILL INVESTMENT GROUP INC produced more free cash flow last quarter ($-9.1M vs $-20.7M).

Diamond Baseball Holdings (DBH) is an American sports ownership and management group that operates over 40 Minor League Baseball (MiLB) teams in the United States and Canada. DBH was established in 2021 by media conglomerate Endeavor and is a subsidiary of the investment firm Silver Lake.

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....

DHIL vs NGS — Head-to-Head

Bigger by revenue
NGS
NGS
1.3× larger
NGS
$46.1M
$36.6M
DHIL
Growing faster (revenue YoY)
NGS
NGS
+20.1% gap
NGS
13.5%
-6.6%
DHIL
Higher net margin
DHIL
DHIL
16.5% more per $
DHIL
25.3%
8.9%
NGS
More free cash flow
DHIL
DHIL
$11.6M more FCF
DHIL
$-9.1M
$-20.7M
NGS

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
DHIL
DHIL
NGS
NGS
Revenue
$36.6M
$46.1M
Net Profit
$9.3M
$4.1M
Gross Margin
Operating Margin
16.9%
15.4%
Net Margin
25.3%
8.9%
Revenue YoY
-6.6%
13.5%
Net Profit YoY
25.3%
43.2%
EPS (diluted)
$3.42
$0.32

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
DHIL
DHIL
NGS
NGS
Q4 25
$36.6M
$46.1M
Q3 25
$37.4M
$43.4M
Q2 25
$36.0M
$41.4M
Q1 25
$37.1M
$41.4M
Q4 24
$39.1M
$40.7M
Q3 24
$39.0M
Q2 24
$36.7M
Q1 24
$36.3M
Net Profit
DHIL
DHIL
NGS
NGS
Q4 25
$9.3M
$4.1M
Q3 25
$13.6M
$5.8M
Q2 25
$15.6M
$5.2M
Q1 25
$10.4M
$4.9M
Q4 24
$7.4M
$2.9M
Q3 24
$14.6M
Q2 24
$8.1M
Q1 24
$13.0M
Operating Margin
DHIL
DHIL
NGS
NGS
Q4 25
16.9%
15.4%
Q3 25
26.0%
24.8%
Q2 25
21.6%
24.0%
Q1 25
35.2%
23.0%
Q4 24
33.8%
14.9%
Q3 24
26.2%
Q2 24
33.1%
Q1 24
22.9%
Net Margin
DHIL
DHIL
NGS
NGS
Q4 25
25.3%
8.9%
Q3 25
36.2%
13.3%
Q2 25
43.2%
12.5%
Q1 25
27.9%
11.7%
Q4 24
18.9%
7.0%
Q3 24
37.5%
Q2 24
22.2%
Q1 24
35.9%
EPS (diluted)
DHIL
DHIL
NGS
NGS
Q4 25
$3.42
$0.32
Q3 25
$4.99
$0.46
Q2 25
$5.73
$0.41
Q1 25
$3.77
$0.38
Q4 24
$2.76
$0.22
Q3 24
$5.35
Q2 24
$2.93
Q1 24
$4.62

Balance Sheet & Financial Strength

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

Metric
DHIL
DHIL
NGS
NGS
Cash + ST InvestmentsLiquidity on hand
Total DebtLower is stronger
Stockholders' EquityBook value
$176.4M
$274.7M
Total Assets
$260.4M
$586.8M
Debt / EquityLower = less leverage

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
DHIL
DHIL
NGS
NGS
Q4 25
Q3 25
Q2 25
$325.0K
Q1 25
$2.1M
Q4 24
$41.6M
$2.1M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
DHIL
DHIL
NGS
NGS
Q4 25
$176.4M
$274.7M
Q3 25
$180.9M
$271.4M
Q2 25
$171.6M
$266.2M
Q1 25
$168.6M
$260.3M
Q4 24
$162.3M
$255.1M
Q3 24
$166.5M
Q2 24
$156.5M
Q1 24
$158.3M
Total Assets
DHIL
DHIL
NGS
NGS
Q4 25
$260.4M
$586.8M
Q3 25
$256.3M
$562.3M
Q2 25
$261.0M
$525.5M
Q1 25
$224.4M
$501.7M
Q4 24
$245.1M
$492.5M
Q3 24
$240.8M
Q2 24
$213.1M
Q1 24
$209.1M

Cash Flow & Capital Efficiency

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

Metric
DHIL
DHIL
NGS
NGS
Operating Cash FlowLast quarter
$-6.6M
$13.9M
Free Cash FlowOCF − Capex
$-9.1M
$-20.7M
FCF MarginFCF / Revenue
-24.8%
-44.8%
Capex IntensityCapex / Revenue
6.7%
74.9%
Cash ConversionOCF / Net Profit
-0.71×
3.38×
TTM Free Cash FlowTrailing 4 quarters
$-34.3M
$-58.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
DHIL
DHIL
NGS
NGS
Q4 25
$-6.6M
$13.9M
Q3 25
$-7.7M
$16.8M
Q2 25
$-5.0M
$11.0M
Q1 25
$-10.7M
$21.3M
Q4 24
$16.6M
$9.4M
Q3 24
$18.5M
Q2 24
$19.2M
Q1 24
$-12.3M
Free Cash Flow
DHIL
DHIL
NGS
NGS
Q4 25
$-9.1M
$-20.7M
Q3 25
$-8.3M
$-25.1M
Q2 25
$-5.7M
$-14.8M
Q1 25
$-11.3M
$2.0M
Q4 24
$15.2M
$-5.1M
Q3 24
$18.3M
Q2 24
$19.2M
Q1 24
$-12.4M
FCF Margin
DHIL
DHIL
NGS
NGS
Q4 25
-24.8%
-44.8%
Q3 25
-22.2%
-57.7%
Q2 25
-15.8%
-35.8%
Q1 25
-30.4%
4.9%
Q4 24
38.9%
-12.6%
Q3 24
46.8%
Q2 24
52.4%
Q1 24
-34.2%
Capex Intensity
DHIL
DHIL
NGS
NGS
Q4 25
6.7%
74.9%
Q3 25
1.6%
96.5%
Q2 25
2.0%
62.4%
Q1 25
1.5%
46.5%
Q4 24
3.5%
35.8%
Q3 24
0.7%
Q2 24
0.0%
Q1 24
0.4%
Cash Conversion
DHIL
DHIL
NGS
NGS
Q4 25
-0.71×
3.38×
Q3 25
-0.57×
2.90×
Q2 25
-0.32×
2.12×
Q1 25
-1.04×
4.38×
Q4 24
2.25×
3.29×
Q3 24
1.26×
Q2 24
2.36×
Q1 24
-0.94×

Financial Flow Comparison

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

Revenue Breakdown by Segment

DHIL
DHIL

Proprietary Funds$26.0M71%
Separately Managed Accounts$5.0M14%
Other Pooled Vehicles$2.8M8%
Administration Revenuenetofrelatedexpense$1.7M5%
Collective Investment Trusts$1.4M4%

NGS
NGS

Segment breakdown not available.

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