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Stocks · Technology · Services-Prepackaged Software

Arqit Quantum Inc.

ARQQ Clue Score45
United Kingdom Fiscal year ends September CIK 0001859690
$17.23 -6.51% Close, 9 Oct 2026
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Price $17.23 +10.38% Close, 9 Oct 2026

Closing prices at the end of each trading day, from 7 Sep 2021. Not a live quote. Adjusted for share splits, so the line has no step at a split; dividends are not added back. P/E and P/FCF are the market value over the last full fiscal year's net income or free cash flow, as public on each day, so they step once a year when the annual report comes out. A hatched band marks a stretch with none: a year of net loss, or of cash burnt.

Revenue and profit

What the business sells, and what is left of it. Point at a year for the detail.
RevenueOperating incomeNet income
Fiscal year 2020Operating income−0.8Net income−0.5Fiscal year 2021Revenue0.0Operating income−172.6Net income−271.3EPS, diluted−3.98Fiscal year 2022Revenue7.2 +14,925.0%Operating income−63.8Net income65.1EPS, diluted13.34Fiscal year 2023Revenue0.6 −91.1%Operating income−54.5Net income−70.4 −208.2%EPS, diluted−13.39Fiscal year 2024Revenue0.3 −54.2%Operating income−24.7Net income−54.6EPS, diluted−10.79
FY2020FY2021FY2022FY2023FY2024
Revenue n/a 0.0 7.2 0.6 0.3
Growth +14,925.0% −91.1% −54.2%
Operating income −0.8 −172.6 −63.8 −54.5 −24.7
Net income −0.5 −271.3 65.1 −70.4 −54.6
Growth −208.2%
EPS, diluted n/a −3.98 13.34 −13.39 −10.79

Margins

How much of each dollar of revenue it keeps. Point at a year for the detail.
Operating marginNet margin
Fiscal year 2020Fiscal year 2021Operating margin−359,502.1%Net margin−565,300.9%Free cash flow margin−50,537.5%Fiscal year 2022Operating margin−884.2%Net margin902.3%Free cash flow margin−403.4%Fiscal year 2023Operating margin−8,516.9%Net margin−10,998.9%Free cash flow margin−5,240.2%Fiscal year 2024Operating margin−8,426.6%Net margin−18,628.3%Free cash flow margin−11,649.1%
FY2020FY2021FY2022FY2023FY2024
Operating margin n/a −359,502.1% −884.2% −8,516.9% −8,426.6%
Net margin n/a −565,300.9% 902.3% −10,998.9% −18,628.3%
Free cash flow margin n/a −50,537.5% −403.4% −5,240.2% −11,649.1%

Cash flow

The cash the business makes, what it reinvests, and what it hands back. Point at a year for the detail.
Operating cash flowCapital expenditureFree cash flow
Fiscal year 2020Operating cash flow−1.3Capital expenditure−0.0Free cash flow−1.4Fiscal year 2021Operating cash flow−24.0Capital expenditure−0.2Free cash flow−24.3Fiscal year 2022Operating cash flow−26.7Capital expenditure−2.4Free cash flow−29.1Fiscal year 2023Operating cash flow−32.8Capital expenditure−0.7Free cash flow−33.5Fiscal year 2024Operating cash flow−34.1Capital expenditure−0.0Free cash flow−34.1
FY2020FY2021FY2022FY2023FY2024
Operating cash flow −1.3 −24.0 −26.7 −32.8 −34.1
Capital expenditure −0.0 −0.2 −2.4 −0.7 −0.0
Free cash flow −1.4 −24.3 −29.1 −33.5 −34.1
Growth

Balance sheet

What it holds against what it owes, at each year end. Point at a year for the detail.
Cash
Fiscal year 2020Cash0.2Shareholders’ equity0.9Fiscal year 2021Cash87.0Shareholders’ equity−33.8Fiscal year 2022Cash49.0Shareholders’ equity78.6Fiscal year 2023Cash44.5Shareholders’ equity66.7Fiscal year 2024Cash18.7Shareholders’ equity11.8
FY2020FY2021FY2022FY2023FY2024
Cash 0.2 87.0 49.0 44.5 18.7
Shareholders’ equity 0.9 −33.8 78.6 66.7 11.8

In millions of USD, except per-share figures and ratios. Fiscal years, as last filed with the SEC.

Financial statements FY2024 · 10-K

Ratios

Percentages worked out from the filed figures; debt to equity in times. Fiscal years ending September, each column as last filed with the SEC.
Click a line to chart it
Fiscal year FY2020 30 Sep 2020 FY2021 30 Sep 2021 FY2022 30 Sep 2022 FY2023 30 Sep 2023 FY2024 30 Sep 2024
Margins
n/a −359,502.1% −884.2% −8,516.9% −8,426.6%
n/a −566,102.1% 740.5% −6,892.7% −8,183.3%
n/a −565,300.9% 902.3% −10,998.9% −18,628.3%
n/a −50,537.5% −403.4% −5,240.2% −11,649.1%
Spending
n/a 464.6% 32.9% 111.3% 2.0%
Returns
−55.4% n/a 82.8% −105.6% −461.8%
−5.5% −238.6% 52.5% −70.5% −204.3%
Balance and payout
90.0% 129.8% 36.6% 33.2% 55.8%