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Side-by-side financial comparison of Arq, Inc. (ARQ) and ROCKWELL MEDICAL, INC. (RMTI). Click either name above to swap in a different company.

Arq, Inc. is the larger business by last-quarter revenue ($29.4M vs $18.3M, roughly 1.6× ROCKWELL MEDICAL, INC.). On growth, Arq, Inc. posted the faster year-over-year revenue change (8.8% vs -25.6%). ROCKWELL MEDICAL, INC. produced more free cash flow last quarter ($2.2M vs $-3.5M). Over the past eight quarters, Arq, Inc.'s revenue compounded faster (16.4% CAGR vs -10.1%).

Arq, Inc. is a sustainable technology firm focused on processing coal mining waste to produce high-value, low-carbon solid fuels and industrial carbon products. It caters to customers across the energy, construction, and manufacturing sectors, with core markets in North America and major European regions, aiming to cut industrial waste and carbon footprints for its clients.

Rockwell Medical Inc. is a publicly traded pharmaceutical company based in Wixom, Michigan and founded in 1996 that focuses on development and commercialization of treatments against diseases such as end-stage renal disease (ESRD) and chronic kidney disease (CKD).

ARQ vs RMTI — Head-to-Head

Bigger by revenue
ARQ
ARQ
1.6× larger
ARQ
$29.4M
$18.3M
RMTI
Growing faster (revenue YoY)
ARQ
ARQ
+34.5% gap
ARQ
8.8%
-25.6%
RMTI
More free cash flow
RMTI
RMTI
$5.7M more FCF
RMTI
$2.2M
$-3.5M
ARQ
Faster 2-yr revenue CAGR
ARQ
ARQ
Annualised
ARQ
16.4%
-10.1%
RMTI

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
ARQ
ARQ
RMTI
RMTI
Revenue
$29.4M
$18.3M
Net Profit
$-554.0K
Gross Margin
13.6%
21.1%
Operating Margin
-174.1%
-2.2%
Net Margin
-3.0%
Revenue YoY
8.8%
-25.6%
Net Profit YoY
26.7%
EPS (diluted)
$-1.20
$-0.01

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
ARQ
ARQ
RMTI
RMTI
Q4 25
$29.4M
$18.3M
Q3 25
$35.1M
$15.9M
Q2 25
$28.6M
$16.1M
Q1 25
$27.2M
$18.9M
Q4 24
$27.0M
$24.7M
Q3 24
$34.8M
$28.3M
Q2 24
$25.4M
$25.8M
Q1 24
$21.7M
$22.7M
Net Profit
ARQ
ARQ
RMTI
RMTI
Q4 25
$-554.0K
Q3 25
$-653.0K
$-1.8M
Q2 25
$-2.1M
$-1.5M
Q1 25
$203.0K
$-1.5M
Q4 24
$-756.0K
Q3 24
$1.6M
$1.7M
Q2 24
$-2.0M
$343.0K
Q1 24
$-3.4M
$-1.7M
Gross Margin
ARQ
ARQ
RMTI
RMTI
Q4 25
13.6%
21.1%
Q3 25
28.8%
14.3%
Q2 25
33.3%
15.6%
Q1 25
36.4%
16.1%
Q4 24
36.3%
14.7%
Q3 24
38.6%
22.0%
Q2 24
32.2%
17.6%
Q1 24
36.9%
13.5%
Operating Margin
ARQ
ARQ
RMTI
RMTI
Q4 25
-174.1%
-2.2%
Q3 25
-2.4%
-9.9%
Q2 25
-5.4%
-8.4%
Q1 25
2.4%
-7.2%
Q4 24
1.5%
-2.1%
Q3 24
5.8%
6.8%
Q2 24
-5.6%
2.0%
Q1 24
-13.7%
-5.8%
Net Margin
ARQ
ARQ
RMTI
RMTI
Q4 25
-3.0%
Q3 25
-1.9%
-11.0%
Q2 25
-7.5%
-9.3%
Q1 25
0.7%
-8.0%
Q4 24
-3.1%
Q3 24
4.7%
5.9%
Q2 24
-7.7%
1.3%
Q1 24
-15.7%
-7.6%
EPS (diluted)
ARQ
ARQ
RMTI
RMTI
Q4 25
$-1.20
$-0.01
Q3 25
$-0.02
$-0.05
Q2 25
$-0.05
$-0.05
Q1 25
$0.00
$-0.04
Q4 24
$-0.03
$-0.02
Q3 24
$0.04
$0.04
Q2 24
$-0.06
$0.01
Q1 24
$-0.09
$-0.06

Balance Sheet & Financial Strength

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

Metric
ARQ
ARQ
RMTI
RMTI
Cash + ST InvestmentsLiquidity on hand
$6.6M
$10.7M
Total DebtLower is stronger
$28.7M
Stockholders' EquityBook value
$168.0M
$37.0M
Total Assets
$230.6M
$57.1M
Debt / EquityLower = less leverage
0.17×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
ARQ
ARQ
RMTI
RMTI
Q4 25
$6.6M
$10.7M
Q3 25
$7.0M
$13.6M
Q2 25
$7.0M
$12.5M
Q1 25
$6.3M
$11.4M
Q4 24
$13.5M
$15.7M
Q3 24
$48.7M
$12.3M
Q2 24
$28.5M
$11.9M
Q1 24
$35.2M
$6.6M
Total Debt
ARQ
ARQ
RMTI
RMTI
Q4 25
$28.7M
Q3 25
$26.1M
Q2 25
$28.9M
Q1 25
$27.1M
Q4 24
$25.1M
Q3 24
$21.6M
Q2 24
$22.2M
Q1 24
$22.6M
Stockholders' Equity
ARQ
ARQ
RMTI
RMTI
Q4 25
$168.0M
$37.0M
Q3 25
$217.2M
$37.0M
Q2 25
$216.8M
$30.4M
Q1 25
$218.2M
$31.5M
Q4 24
$217.3M
$32.6M
Q3 24
$218.1M
$29.1M
Q2 24
$189.6M
$23.5M
Q1 24
$175.2M
$20.6M
Total Assets
ARQ
ARQ
RMTI
RMTI
Q4 25
$230.6M
$57.1M
Q3 25
$277.9M
$57.5M
Q2 25
$284.5M
$52.6M
Q1 25
$283.7M
$54.0M
Q4 24
$284.4M
$59.2M
Q3 24
$280.0M
$57.1M
Q2 24
$248.6M
$53.0M
Q1 24
$229.8M
$50.7M
Debt / Equity
ARQ
ARQ
RMTI
RMTI
Q4 25
0.17×
Q3 25
0.12×
Q2 25
0.13×
Q1 25
0.12×
Q4 24
0.12×
Q3 24
0.10×
Q2 24
0.12×
Q1 24
0.13×

Cash Flow & Capital Efficiency

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

Metric
ARQ
ARQ
RMTI
RMTI
Operating Cash FlowLast quarter
$-2.8M
$2.3M
Free Cash FlowOCF − Capex
$-3.5M
$2.2M
FCF MarginFCF / Revenue
-12.0%
12.0%
Capex IntensityCapex / Revenue
2.7%
0.5%
Cash ConversionOCF / Net Profit
TTM Free Cash FlowTrailing 4 quarters
$-11.3M
$-1.2M

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
ARQ
ARQ
RMTI
RMTI
Q4 25
$-2.8M
$2.3M
Q3 25
$5.3M
$-1.3M
Q2 25
$527.0K
$1.8M
Q1 25
$-5.8M
$-3.5M
Q4 24
$5.2M
$865.0K
Q3 24
$7.7M
$4.3M
Q2 24
$-3.0M
$1.4M
Q1 24
$526.0K
$-2.4M
Free Cash Flow
ARQ
ARQ
RMTI
RMTI
Q4 25
$-3.5M
$2.2M
Q3 25
$3.1M
$-1.5M
Q2 25
$-1.4M
$1.7M
Q1 25
$-9.5M
$-3.5M
Q4 24
$-37.8M
$470.0K
Q3 24
$-5.8M
$4.1M
Q2 24
$-22.1M
$1.2M
Q1 24
$-9.1M
$-2.5M
FCF Margin
ARQ
ARQ
RMTI
RMTI
Q4 25
-12.0%
12.0%
Q3 25
8.8%
-9.6%
Q2 25
-4.7%
10.5%
Q1 25
-34.9%
-18.8%
Q4 24
-139.6%
1.9%
Q3 24
-16.5%
14.4%
Q2 24
-87.1%
4.5%
Q1 24
-41.7%
-11.1%
Capex Intensity
ARQ
ARQ
RMTI
RMTI
Q4 25
2.7%
0.5%
Q3 25
6.3%
1.4%
Q2 25
6.6%
1.0%
Q1 25
13.6%
0.3%
Q4 24
158.9%
1.6%
Q3 24
38.7%
0.7%
Q2 24
75.5%
1.1%
Q1 24
44.1%
0.6%
Cash Conversion
ARQ
ARQ
RMTI
RMTI
Q4 25
Q3 25
Q2 25
Q1 25
-28.59×
Q4 24
Q3 24
4.76×
2.57×
Q2 24
4.20×
Q1 24

Financial Flow Comparison

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

Revenue Breakdown by Segment

ARQ
ARQ

Segment breakdown not available.

RMTI
RMTI

US$15.9M87%
Non Us$2.4M13%

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