Arq, Inc. (ARQ) Key Metrics

NASDAQ: ARQValuation, returns, debt and efficiency ratios over 10 years.

ARQ valuation today

Trailing 12 months · as of October 18, 2026
Market cap
$78.2M
Enterprise value
$125.4M
P/E (TTM)
—
10-yr median 6.8
Forward P/E
65.8
PEG ratio
11.75
Price / sales
0.6
10-yr median 2.2
Price / book
0.5
10-yr median 1.4
EV / EBITDA
30.3
10-yr median 5.0
Dividend yield
—
Beta
2.87

ARQ key metrics, FY2016–FY2025

Fiscal year ended September 30, 2025 · U.S. dollars

ARQ valuation Price multiples at each fiscal year-end price.

Price / sales+27.2%
2.5
FY2025 · hover or tap a bar for each year
FY2016: 3.3FY2017: 5.2 (+56.8%)FY2018: 10.0 (+93.2%)FY2019: 3.9 (−61.1%)FY2020: 1.1 (−72.0%)FY2021: 1.2 (+8.2%)FY2022: 0.5 (−58.4%)FY2023: 0.5 (+6.8%)FY2024: 1.9 (+271.8%)FY2025: 2.5 (+27.2%)
FY2016FY2025
Price / book+81.7%
1.8
FY2025 · hover or tap a bar for each year
FY2016: 2.2FY2017: 3.2 (+45.7%)FY2018: 3.5 (+10.3%)FY2019: 2.5 (−28.6%)FY2020: 0.9 (−65.9%)FY2021: 0.8 (−6.9%)FY2022: 0.4 (−55.1%)FY2023: 0.3 (−19.3%)FY2024: 1.0 (+235.4%)FY2025: 1.8 (+81.7%)
FY2016FY2025
Free cash flow yield+31.6 pts
−3.7%
FY2025 · hover or tap a bar for each year
FY2016: 11.8%FY2017: 15.6% (+3.8 pts)FY2018: 15.4% (−0.3 pts)FY2019: 20.0% (+4.6 pts)FY2020: 64.7% (+44.7 pts)FY2021: 16.8% (−47.9 pts)FY2022: −29.7% (−46.5 pts)FY2023: −85.3% (−55.5 pts)FY2024: −35.3% (+50.0 pts)FY2025: −3.7% (+31.6 pts)
FY2016FY2025

ARQ valuation history

Fiscal year-endToday10-year median

ARQ returns on capital

ROEROICROA

Net income (ROE, ROA) or after-tax operating income (ROIC) divided by the average of the opening and closing balance.

ARQ debt vs cash

Total debtCash & short-term investments

Debt includes short- and long-term borrowings and, where reported, lease liabilities.

ARQ cash returned to shareholders

DividendsBuybacksFree cash flow

ARQ price vs earnings per share

Share price at year-endEPS (right axis)

ARQ key metrics

FY2016–FY2025
Arq, Inc. key metrics by fiscal year
FY2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY2017FY2016
Valuation
Market capitalization$297.3M$211.6M$51.8M$50.4M$118.0M$73.3M$272.6M$239.6M$234.9M$167.2M
Enterprise value$328.1M$232.5M$38.2M−$3.6M$49.7M$74.2M$310.1M$295.1M$204.4M$140.5M
P/E ratio————2.0—7.76.88.41.7
Price / sales2.51.90.50.51.21.13.910.05.23.3
Price / book1.81.00.30.40.80.92.53.53.22.2
Price / free cash flow————6.01.55.06.56.48.5
Price / operating cash flow—20.2——4.51.44.46.46.38.4
EV / sales2.72.10.4-0.00.51.14.412.34.52.8
EV / EBITDA—35.326.1—0.6—5.06.13.73.3
EV / free cash flow————2.51.65.78.05.67.1
Earnings yield−17.7%−2.4%−23.6%−17.7%51.2%−27.7%13.0%14.8%11.9%58.4%
Free cash flow yield−3.7%−35.3%−85.3%−29.7%16.8%64.7%20.0%15.4%15.6%11.8%
Dividend yield——0.0%0.1%0.1%6.8%6.7%8.4%6.7%—
Shareholder yield (dividends + buybacks)0.0%0.5%0.4%0.9%0.3%7.7%9.0%19.3%13.9%0.1%
Share price at fiscal year-end$7.16$5.87$1.78$2.73$6.39$4.06$14.84$11.96$10.97$7.52
Per share
Revenue per share$2.90$3.02$3.41$5.58$5.43$3.73$3.81$1.20$2.12$2.28
Earnings per share−$1.27−$0.14−$0.42−$0.48$3.27−$1.13$1.93$1.77$1.30$4.39
Operating cash flow per share−$0.06$0.29−$0.57−$0.33$1.41$3.00$3.39$1.86$1.73$0.90
Free cash flow per share−$0.27−$2.07−$1.52−$0.81$1.07$2.62$2.96$1.84$1.71$0.89
Cash per share$0.16$0.37$1.56$3.60$4.27$1.44$0.66$0.93$1.43$1.21
Book value per share$4.05$6.03$6.13$7.59$7.98$4.72$5.89$3.39$3.43$3.43
Tangible book value per share$4.03$5.82$5.86$7.54$7.91$4.61$5.67$3.15$3.39$3.39
Dividends per share——$0.00$0.00$0.01$0.28$0.99$1.01$0.73—
Capex per share$0.21$2.36$0.95$0.48$0.34$0.37$0.43$0.02$0.02$0.01
Debt per share$0.90$0.95$1.09$0.67$0.57$1.49$2.70$3.70$0.01$0.01
Shares outstanding41.5M36.1M29.1M18.5M18.5M18.0M18.4M20.0M21.4M22.2M
Change in shares outstanding+15.2%+23.9%+57.7%−0.0%+2.3%−1.8%−8.3%−6.4%−3.7%—
Returns & profitability
Return on equity (ROE)−27.3%−2.6%−7.7%−6.2%52.0%−21.0%40.3%50.1%37.3%128.2%
Return on invested capital (ROIC)−2.9%−0.8%−8.4%−11.6%4.7%−27.9%−8.3%−5.9%−4.8%−32.5%
Return on assets (ROA)−20.4%−2.0%−5.9%−4.9%36.4%−12.7%20.8%28.3%29.3%90.9%
Return on tangible assets−22.9%−1.8%−5.4%−4.9%32.8%−14.0%20.9%21.7%34.0%91.4%
Free cash flow margin−9.2%−68.6%−44.5%−14.5%19.7%70.3%77.6%153.8%80.9%38.9%
Income quality (OCF / net income)————0.43—1.751.051.330.20
Financial health
Total debt$37.4M$34.4M$31.7M$12.4M$10.5M$26.9M$49.6M$74.1M$207,000$244,001
Cash & short-term investments$6.6M$13.5M$45.4M$66.4M$78.8M$25.9M$12.1M$18.6M$30.7M$26.9M
Net debt$30.8M$20.8M−$13.6M−$54.0M−$68.3M$946,000$37.5M$55.5M−$30.5M−$26.7M
Debt / equity0.220.160.180.090.070.320.461.090.000.00
Debt / assets0.160.120.130.070.060.180.290.440.000.00
Net debt / EBITDA—3.17−9.32—−0.80—0.601.14−0.55−0.62
Current ratio1.041.173.754.424.791.461.201.475.361.64
Quick ratio0.660.742.903.684.441.220.800.935.351.64
Interest coverage-3.3-0.6-4.4-35.93.3-10.5-2.1-3.0-1.4-3.2
Working capital$1.6M$7.7M$63.4M$81.8M$85.7M$19.4M$7.7M$19.1M$30.0M$15.2M
Invested capital$198.8M$238.1M$164.8M$86.0M$79.0M$86.2M$145.8M$123.5M$43.0M$49.5M
Tangible asset value$167.4M$209.7M$170.5M$139.1M$146.1M$83.2M$104.1M$63.1M$72.7M$75.5M
Net current asset value−$18.8M−$14.7M$29.4M$64.5M$70.2M$528,000−$18.5M−$40.2M$27.6M$7.6M
Graham number————$24.24—$16.02$11.62$10.02$18.40
Graham net-net per share−$0.89−$0.91$0.35$2.41$3.03−$1.01−$2.01−$3.00$1.15$0.16
Capital allocation
Dividends paid——$0$45,000$93,000$5.0M$18.3M$20.2M$15.7M—
Share buybacks (net)$66,000$1.1M$230,000$388,000$246,000$696,000$6.2M$26.1M$17.0M$196,000
Dividend payout ratio————0.2%—51.4%56.9%56.3%—
Dividends + buybacks / free cash flow————1.7%12.0%45.1%125.7%89.0%1.0%
Capex / revenue7.1%78.2%27.7%8.7%6.2%9.9%11.2%2.0%0.9%0.6%
Capex / operating cash flow—812.9%——23.9%12.4%12.6%1.3%1.2%1.4%
Capex / depreciation0.739.912.611.390.780.781.070.650.540.30
Stock-based compensation / revenue2.8%2.5%2.7%1.9%1.9%3.7%2.9%———
R&D / revenue6.1%3.7%3.3%2.0%4.0%4.5%——0.3%1.3%
SG&A / revenue18.7%26.3%37.7%27.3%24.6%40.0%40.2%97.6%37.1%52.5%
Efficiency
Days sales outstanding45.352.055.351.357.676.566.4138.760.276.5
Days of inventory on hand74.0102.4101.758.249.391.8137.5638.20.50.1
Days payables outstanding76.393.583.373.967.757.652.7211.216.717.6
Cash conversion cycle (days)43.060.973.835.639.3110.8151.2565.744.059.0
Receivables turnover8.067.016.607.116.334.775.492.636.064.77
Payables turnover4.783.904.384.945.396.346.921.7321.8420.74
Inventory turnover4.933.563.596.277.403.982.650.57708.562,488.56
Asset turnover0.470.420.480.560.600.420.410.190.480.47
Average receivables$14.9M$15.5M$15.0M$14.5M$15.8M$14.1M$12.8M$9.1M$7.5M$10.6M
Average payables$18.1M$17.8M$15.4M$16.3M$12.2M$7.9M$7.1M$3.6M$1.5M$1.9M
Average inventory$17.6M$19.5M$18.8M$12.8M$8.9M$12.7M$18.6M$10.9M$45,000$16,000
Intangibles / total assets0.2%2.7%3.4%0.5%0.7%1.3%2.4%2.9%1.0%0.6%

Computed from ARQ's annual financial statements (latest annual report filed March 10, 2026) and the closing share price on each fiscal year-end, adjusted for stock splits. Figures in U.S. dollars; data from EODHD. Averages use the opening and closing balance of each year.

ARQ valuation and financial ratios

Arq earned a return on equity of −27.3% and a return on invested capital of −2.9% in fiscal 2025. It ended the year with $37.4 million of debt and $6.6 million in cash and short-term investments, net debt of $30.8 million. It returned $0.1 million to shareholders: $0 in dividends and $0.1 million in share buybacks. The share count rose 86.8% from 22.2M to 41.5M over 9 years.

See the ARQ income statement, the ARQ chart for price history, or the ARQ stock overview for the latest quote and news.

ARQ key metrics FAQ

What is Arq's return on equity?

Arq's return on equity (ROE) was −27.3% in fiscal 2025: net income of -$52.6 million on average shareholders' equity of $192.6 million.

What is Arq's ROIC?

Arq's return on invested capital was −2.9% in fiscal 2025, using after-tax operating income divided by average debt plus equity minus cash.

How much debt does Arq have?

Arq had total debt of $37.4 million at the end of fiscal 2025, a debt-to-equity ratio of 0.22.

Does Arq buy back its shares?

Yes. Arq spent $0.1 million on net share repurchases in fiscal 2025 Shares outstanding changed +15.2% over the year, to 41.5M..

What is Arq's free cash flow yield?

Arq generated -$11.1 million of free cash flow in fiscal 2025, a free cash flow yield of −3.7% on its market value at year-end ($297.3 million).

What is Arq's current ratio?

Arq's current ratio was 1.04 at the end of fiscal 2025: current assets were 1.04 times current liabilities.

Pollution & Treatment Controls key metrics