What is Fuel Tech's shares (diluted)?

Fuel Tech (FTEK) reported shares (diluted) of 30.9M in Q4 2025.

How has Fuel Tech's shares (diluted) changed year-over-year?

Fuel Tech's shares (diluted) increased by 1.2% year-over-year, from 30.6M to 30.9M.

What does shares (diluted) mean?

The weighted-average shares outstanding plus all potentially dilutive shares from stock options, RSUs, convertible securities, and warrants, using the treasury stock method.

Fuel Tech FTEK Shares (Diluted)

Discontinued — last reported Q4 '25

Shares (Diluted) at other companies

Ceco EnvironmentalCECO

35.7M-2.7%

Babcock & Wilcox EnterprisesBW

133.8M+36.6%

Arq, Inc.ARQ

41.7M-1.9%

Flotek IndustriesFTK

38.3M+20.7%

InnospecIOSP

24.8M-1.0%

PhiniaPHIN

38.7M-6.7%

Other financials

Income statement

See full

Revenue$6.1M-4.7%

Gross profit$3.1M+16.6%

Operating income-$920.3K+21.7%

Net income-$1.4M-133%

EPS (diluted)-$0.02-33.3%

Balance sheet

See full

Cash & equivalents$9.1M-22.9%

Total debt$557.0K-8.2%

Total equity$38.6M-7.0%

Total assets$44.5M-4.8%

Cash flow

See full

Operating cash flow-$847.0K-156%

CapEx$322.0K+395%

Free cash flow-$1.2M-181%

Valuation

See full

Market cap$68.88M-11.2%

Enterprise value$60.32M-10.8%

P/S2.6×-0.5×

Profitability

See full

Gross margin46.4%+4.2pp

Operating margin-13.8%-2.9pp

Net margin-11.7%+13.3pp

FCF margin-9.5%—

Returns & leverage

See full

Return on equity-7.7%+12.8pp

Debt / equity0×0.0×

Current ratio5.4×-1.4×

Where this comes from

Reported directly by Fuel Tech in its filing.

Tagged under the XBRL concept us-gaap:WeightedAverageNumberOfDilutedSharesOutstanding.

The official record: Fuel Tech’s 10-K, filed March 3, 2026, on SEC EDGAR. View the filing →

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Questions, answered.

What is Fuel Tech's shares (diluted)?: Fuel Tech (FTEK) reported shares (diluted) of 30.9M in Q4 2025.
How has Fuel Tech's shares (diluted) changed year-over-year?: Fuel Tech's shares (diluted) increased by 1.2% year-over-year, from 30.6M to 30.9M.
What does shares (diluted) mean?: The weighted-average shares outstanding plus all potentially dilutive shares from stock options, RSUs, convertible securities, and warrants, using the treasury stock method.