Arqit Quantum Inc. key statistics and ratios

In fiscal 2025, Arqit Quantum Inc. had return on equity of -181.0%, an operating margin of -7271.5%, debt equal to 0.0% of equity and a current ratio of 2.69. Each ratio below is calculated from the figures on its income statement, balance sheet and cash flow pages.

Financial ratios

US$ thousands unless shown otherwise. Fiscal years, plus the last twelve months (LTM) when newer.

Arqit Quantum Inc.: financial ratios, annual
Fiscal year	2021Sept 2021	2022Sept 2022	2023Sept 2023	2024Sept 2024	2025Sept 2025
Operating margin	<−999%	−884.2%	<−999%	<−999%	<−999%
Net margin	<−999%	902.3%	<−999%	<−999%	<−999%
Free-cash-flow margin	<−999%	−403.4%	<−999%	<−999%	<−999%
Return on equity	—	—	−102.6%	−144.8%	−181.0%
Return on assets	−238.6%	54.8%	−66.6%	−89.8%	−101.6%
Asset turnover	0.00	0.06	0.01	0.00	0.02
Current ratio	5.29	2.38	3.22	1.94	2.69
Debt to equity	—	0.0%	0.0%	0.0%	0.0%
Interest cover (operating income ÷ interest)	—	n/m	n/m	n/m	n/m
Capital spending as % of revenue	464.6%	32.9%	111.3%	2.0%	6.2%
Free cash flow ÷ net income	—	−44.7%	—	—	—

Returns use average equity or assets over the year. Return on equity is left blank when equity is negative or so small that the ratio says nothing (above ±200%); interest cover is left blank above 200 times. Price-based ratios such as P/E are on the valuation page.

Financial health

2 of 3 checks passed · September 30, 2025

What it owns · $43m

Short-term assets $40mLonger-term assets $3m

What it owes, and who funded it · $43m

Short-term liabilities $15mLonger-term liabilities $1mShareholders' equity $27m

Short-term assets cover short-term liabilities $40m of assets due within a year against $15m of liabilities due within a year.
Short-term assets cover long-term liabilities $40m short-term assets against $715,000 of longer-dated liabilities.
More cash than debt Cash or debt not separately reported. Not assessable.
Debt below 40% of shareholders' equity Equity or debt not reported. Not assessable.
Debt burden no higher than five years ago Five-year comparison not available. Not assessable.
A year's operating cash flow covers at least 20% of debt Cash flow or debt not reported. Not assessable.
Operating profit covers interest at least five times over Operating income of −$39m against $48,000 of interest.

From Arqit Quantum Inc.'s latest balance sheet as filed. Checks are fixed, documented rules (methodology), counted only where the company reports the figures — a dot means the filing doesn't break the item out. Descriptions of reported data, not advice.

Moat

Not assessed: fewer than five years of comparable figures in the filings. AI disruption exposure for this industry: Medium.

A rules-based reading of reported figures, not a forecast and not investment advice. How the score is built: methodology.

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Figures from Arqit Quantum Inc.'s SEC filings (10-K and 10-Q), retrieved November 2, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Arqit Quantum Inc.