Arqit Quantum Inc. (ARQQ)

NASDAQ

$16.32

$+1.01

(+6.60%)

Previous Close: ⁦$15.31⁩

Market Closed

Arqit Quantum Inc. (ARQQ) Live Price Chart

Last updated: ⁦2026-10-22 07:17:40⁩. Prices reflect the latest closing data and will resume updating on the next trading day. Stock price data is sourced from Massive.

Summary

Arqit Quantum Inc. (ARQQ) operates in the -- sector and is listed on NASDAQ. The stock is currently priced at $16.32, with a market capitalization of $266.43M and a P/E ratio of --. Over the past 52 weeks, its price has ranged from $11.52 to $49.33. This page covers its latest market performance, valuation, price trends and company information.

Key Market Data

Market Cap	$266.43M
Open	$15.45
Day's High	$1,038.00
Day's Low	$3.72
Previous Close	$15.31
Volume	249.33K
Average Volume	323.44K
P/E Ratio	--
52-Week High	$49.33
52-Week Low	$11.52
Dividend Yield	--
Earnings Date	--

Arqit Quantum Inc. (ARQQ) Latest Closing Stock Price

Arqit Quantum Inc. (ARQQ) last closed at $15.31 as of 2026-10-21 23:36:00, unchanged from the previous close of $15.31.

During the latest regular trading session, ARQQ traded between $3.72 and $1,038.00, with a volume of 249.33K shares. The closing price was near the lower end and near the lower end of its 52-week range.

Arqit Quantum Inc. (ARQQ) 7-Day Stock Price Change

Over the past seven days, Arqit Quantum Inc. (ARQQ) moved from $16.84 to $16.32, representing a decline of 3.09% ($0.52).

The stock traded between $13.37 and $17.19 during the period. The latest price is near the upper end of the 7-day range, indicating moderate downward.

The average daily volume was 309.56 thousand shares, down versus the previous seven-day period, indicating lower trading activity.

ARQQ 52-Week Price Position

Position in Range: 12.7%

52W Low$11.52

52W High$49.33

ARQQ is currently trading at $16.32, placing it 12.7% of the way from its 52-week low of $11.52 to its 52-week high of $49.33. This percentage reflects the stock's relative position within its 52-week trading range, not its valuation or future performance.

What is Arqit Quantum Inc. (ARQQ)?

Arqit Quantum Inc is a cybersecurity company that has pioneered a symmetric key agreement technology that makes the communications links of any networked device or data at rest secure against current and future forms of cyber attack - even an attack from a quantum computer. The company delivers its symmetric key agreement technology via its product SKA-Platform. The firm operates in one segment, that is, the provision of cybersecurity services. The company operates and generates its revenue from UK.

Arqit Quantum Inc. Information

Employees	91
Exchange	NASDAQ
Company Website	https://www.arqit.uk

How to Buy Arqit Quantum Inc. (ARQQ) Stock on MEXC

Eligible investors can buy real shares of Arqit Quantum Inc. (ARQQ) through MEXC RealStocks. Follow these three steps to open a RealStocks account, transfer USDT, and place a US stock order.

Step 1: Open and Verify Your RealStocks Account

Log in to the MEXC App, go to Trade → RealStocks, and select Open Account. Complete the required account-opening and identity verification process with MEXC's partner licensed broker.

Step 2: Transfer USDT to Your RealStocks Account

Go to Wallets → RealStocks and transfer USDT from your Spot Account to your RealStocks Account. RealStocks are quoted in USD, while account funding can be completed using USDT.

Step 3: Search for ARQQ and Place Your Order

Open the RealStocks trading page and search for ARQQ. Select a market or limit order, enter the price and quantity as required, review the order details, and submit your order. Once filled, the corresponding real shares will be held in your RealStocks Account.

Frequently Asked Questions (FAQ)

1.What is Arqit Quantum Inc. (ARQQ) stock price today?

Arqit Quantum Inc. (ARQQ) is currently trading at $ 16.32, up 6.60% ($1.01) from the previous close of $ 15.31. Intraday prices update in real time during regular trading hours.

2.Is ARQQ stock going up or down today?

As of 2026-10-21 23:36:00, ARQQ is trading at $ 16.32, up 6.60% ($1.01) from its previous close of $ 15.31. The stock has traded between $ 3.72 and $ 1,038.00 during today’s regular session. Past price movements do not guarantee future results.

3.What is ARQQ pre-market price?

As of 2026-10-21 23:36:00, ARQQ is trading at $ 15.63 in pre-market trading, up 2.12% ($0.32) from the previous close of $ 15.31. Pre-market prices reflect trading activity before the regular session opens and may experience lower liquidity and higher volatility.

4.What is ARQQ after-hours price?

As of 2026-10-21 23:36:00, ARQQ is trading at $ 16.29 in after-hours trading, up 6.37% ($0.97) from the regular-session close of $ 15.31. After-hours prices may differ from the regular session’s opening price due to lower liquidity and wider bid-ask spreads.

5.Is ARQQ stock trading now?

ARQQ trades on the NASDAQ exchange during regular hours, Monday through Friday, 9:30 AM to 4:00 PM ET, excluding public holidays. Pre-market and after-hours trading are also available through select brokers outside these hours.

6.Where does ARQQ sit relative to its 52-week high and low?

Over the past 52 weeks, ARQQ has traded between a low of $ 11.52 and a high of $ 49.33. At $ 16.32, the stock is positioned 12.7% of the way from its 52-week low to its 52-week high, providing context for its current price within the one-year trading range.

7.What sector is Arqit Quantum Inc. in?

Arqit Quantum Inc. (ARQQ) operates in the -- sector. Sector classification helps investors compare it with companies exposed to similar market trends and competitive conditions.

8.What is Arqit Quantum Inc.'s market capitalization and where is it listed?

Arqit Quantum Inc. is listed on the NASDAQ exchange with a market capitalization of $ 266.43M. Market cap reflects the total market value of all outstanding shares and is commonly used to classify stocks by size.

9.How is ARQQ valued in terms of P/E ratio and EPS?

ARQQ trades at a P/E ratio of --, based on trailing-twelve-month EPS of --. P/E ratio compares the stock price to earnings per share and is a common starting point for assessing valuation relative to peers.

10.Does Arqit Quantum Inc. pay a dividend?

Arqit Quantum Inc. pays an indicated annual cash dividend of -- per share, with a current dividend yield of --% based on the latest share price. Dividend policies are subject to change at the board's discretion.