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Side-by-side financial comparison of ALLIANCE RESOURCE PARTNERS LP (ARLP) and ASP Isotopes Inc. (ASPI). Click either name above to swap in a different company.

ALLIANCE RESOURCE PARTNERS LP is the larger business by last-quarter revenue ($535.5M vs $16.7M, roughly 32.1× ASP Isotopes Inc.). On growth, ASP Isotopes Inc. posted the faster year-over-year revenue change (1295.7% vs -9.2%). ALLIANCE RESOURCE PARTNERS LP produced more free cash flow last quarter ($99.1M vs $-47.4M). Over the past eight quarters, ASP Isotopes Inc.'s revenue compounded faster (345.2% CAGR vs -9.4%).

Alliance Resource Partners LP is a leading North American natural resource enterprise primarily engaged in the production and marketing of coal for utility and industrial customers. It also operates complementary business segments including mineral royalty management, oil and gas extraction, and logistics support services.

ASP Isotopes Inc. is a specialty materials firm focused on developing and producing high-purity custom isotopes. Its products serve key sectors including nuclear medicine, targeted cancer therapies, advanced energy, and industrial research, with customers across North America, Europe and Asia Pacific.

ARLP vs ASPI — Head-to-Head

Bigger by revenue
ARLP
ARLP
32.1× larger
ARLP
$535.5M
$16.7M
ASPI
Growing faster (revenue YoY)
ASPI
ASPI
+1304.9% gap
ASPI
1295.7%
-9.2%
ARLP
More free cash flow
ARLP
ARLP
$146.6M more FCF
ARLP
$99.1M
$-47.4M
ASPI
Faster 2-yr revenue CAGR
ASPI
ASPI
Annualised
ASPI
345.2%
-9.4%
ARLP

Income Statement — Q4 2025 vs Q4 2025

Metric
ARLP
ARLP
ASPI
ASPI
Revenue
$535.5M
$16.7M
Net Profit
$82.7M
Gross Margin
12.5%
Operating Margin
18.2%
Net Margin
15.4%
Revenue YoY
-9.2%
1295.7%
Net Profit YoY
406.2%
-586.8%
EPS (diluted)

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
ARLP
ARLP
ASPI
ASPI
Q4 25
$535.5M
$16.7M
Q3 25
$571.4M
$4.9M
Q2 25
$547.5M
$1.2M
Q1 25
$540.5M
$1.1M
Q4 24
$590.1M
$1.2M
Q3 24
$613.6M
$1.1M
Q2 24
$593.4M
$1.0M
Q1 24
$651.7M
$840.4K
Net Profit
ARLP
ARLP
ASPI
ASPI
Q4 25
$82.7M
Q3 25
$95.1M
$-12.9M
Q2 25
$59.4M
$-75.2M
Q1 25
$74.0M
$-8.5M
Q4 24
$16.3M
Q3 24
$86.3M
$-7.4M
Q2 24
$100.2M
$-8.9M
Q1 24
$158.1M
$-7.0M
Gross Margin
ARLP
ARLP
ASPI
ASPI
Q4 25
12.5%
Q3 25
8.7%
Q2 25
47.7%
Q1 25
29.7%
Q4 24
50.7%
Q3 24
27.0%
Q2 24
41.2%
Q1 24
33.2%
Operating Margin
ARLP
ARLP
ASPI
ASPI
Q4 25
18.2%
Q3 25
18.4%
-306.1%
Q2 25
16.2%
-998.8%
Q1 25
17.4%
-721.9%
Q4 24
2.6%
Q3 24
16.5%
-499.6%
Q2 24
19.8%
-729.5%
Q1 24
24.6%
-691.9%
Net Margin
ARLP
ARLP
ASPI
ASPI
Q4 25
15.4%
Q3 25
16.6%
-263.7%
Q2 25
10.9%
-6271.7%
Q1 25
13.7%
-768.1%
Q4 24
2.8%
Q3 24
14.1%
-676.2%
Q2 24
16.9%
-868.8%
Q1 24
24.3%
-828.8%
EPS (diluted)
ARLP
ARLP
ASPI
ASPI
Q4 25
Q3 25
$-0.15
Q2 25
$-1.03
Q1 25
$-0.12
Q4 24
Q3 24
$-0.12
Q2 24
$-0.24
Q1 24
$-0.16

Balance Sheet & Financial Strength

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

Metric
ARLP
ARLP
ASPI
ASPI
Cash + ST InvestmentsLiquidity on hand
$71.2M
$333.3M
Total DebtLower is stronger
$14.4M
Stockholders' EquityBook value
$204.2M
Total Assets
$2.9B
$498.0M
Debt / EquityLower = less leverage
0.07×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARLP
ARLP
ASPI
ASPI
Q4 25
$71.2M
$333.3M
Q3 25
$94.5M
$113.9M
Q2 25
$55.0M
$67.7M
Q1 25
$81.3M
$56.0M
Q4 24
$137.0M
$61.9M
Q3 24
$195.4M
$51.6M
Q2 24
$203.7M
Q1 24
$134.0M
Total Debt
ARLP
ARLP
ASPI
ASPI
Q4 25
$14.4M
Q3 25
$13.9M
Q2 25
Q1 25
Q4 24
$2.4M
Q3 24
Q2 24
Q1 24
Stockholders' Equity
ARLP
ARLP
ASPI
ASPI
Q4 25
$204.2M
Q3 25
$74.1M
Q2 25
$25.2M
Q1 25
$42.5M
Q4 24
$47.9M
Q3 24
$38.7M
Q2 24
$11.0M
Q1 24
$10.5M
Total Assets
ARLP
ARLP
ASPI
ASPI
Q4 25
$2.9B
$498.0M
Q3 25
$2.9B
$225.9M
Q2 25
$2.9B
$135.9M
Q1 25
$2.9B
$90.9M
Q4 24
$2.9B
$94.3M
Q3 24
$3.0B
$84.1M
Q2 24
$3.1B
$54.8M
Q1 24
$3.0B
$45.4M
Debt / Equity
ARLP
ARLP
ASPI
ASPI
Q4 25
0.07×
Q3 25
0.19×
Q2 25
Q1 25
Q4 24
0.05×
Q3 24
Q2 24
Q1 24

Cash Flow & Capital Efficiency

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

Metric
ARLP
ARLP
ASPI
ASPI
Operating Cash FlowLast quarter
$143.9M
$-37.8M
Free Cash FlowOCF − Capex
$99.1M
$-47.4M
FCF MarginFCF / Revenue
18.5%
-284.7%
Capex IntensityCapex / Revenue
8.4%
57.9%
Cash ConversionOCF / Net Profit
1.74×
TTM Free Cash FlowTrailing 4 quarters
$387.9M
$-74.6M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARLP
ARLP
ASPI
ASPI
Q4 25
$143.9M
$-37.8M
Q3 25
$209.9M
$-8.9M
Q2 25
$151.7M
$-7.9M
Q1 25
$145.7M
$-3.2M
Q4 24
$168.4M
$-16.7M
Q3 24
$209.3M
$-4.8M
Q2 24
$215.8M
$-5.1M
Q1 24
$209.7M
$-3.0M
Free Cash Flow
ARLP
ARLP
ASPI
ASPI
Q4 25
$99.1M
$-47.4M
Q3 25
$145.2M
$-12.0M
Q2 25
$84.7M
$-9.7M
Q1 25
$58.9M
$-5.5M
Q4 24
$75.3M
$-26.4M
Q3 24
$99.0M
$-9.3M
Q2 24
$114.3M
$-7.7M
Q1 24
$85.8M
$-4.2M
FCF Margin
ARLP
ARLP
ASPI
ASPI
Q4 25
18.5%
-284.7%
Q3 25
25.4%
-245.5%
Q2 25
15.5%
-809.4%
Q1 25
10.9%
-497.4%
Q4 24
12.8%
-2209.3%
Q3 24
16.1%
-857.3%
Q2 24
19.3%
-757.8%
Q1 24
13.2%
-501.7%
Capex Intensity
ARLP
ARLP
ASPI
ASPI
Q4 25
8.4%
57.9%
Q3 25
11.3%
64.4%
Q2 25
12.2%
150.1%
Q1 25
16.1%
209.6%
Q4 24
15.8%
810.5%
Q3 24
18.0%
412.3%
Q2 24
17.1%
256.5%
Q1 24
19.0%
148.3%
Cash Conversion
ARLP
ARLP
ASPI
ASPI
Q4 25
1.74×
Q3 25
2.21×
Q2 25
2.55×
Q1 25
1.97×
Q4 24
10.31×
Q3 24
2.43×
Q2 24
2.15×
Q1 24
1.33×

Financial Flow Comparison

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

Revenue Breakdown by Segment

ARLP
ARLP

Illinois Basin Segment$339.0M63%
Appalachia Segment$141.4M26%
Other$24.2M5%
Royalties Coal Segment$22.4M4%
Shipping And Handling$10.2M2%

ASPI
ASPI

Segment breakdown not available.

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