Arqit Quantum Inc. (ARQQ)
NASDAQ: ARQQ · Real-Time Price · USD
16.41
+0.60 (3.80%)
At close: Oct 23, 2026, 4:00 PM EDT
16.44
+0.03 (0.18%)
After-hours: Oct 23, 2026, 7:30 PM EDT
Arqit Quantum Market Cap
Arqit Quantum has a market cap or net worth of $272.09 million as of October 23, 2026. It is the 18,771st most valuable company in the world and the 3,288th biggest in the United States. Its market cap has decreased by 49.28% in one year.
Market Cap
272.09M
Enterprise Value
245.40M
1-Year Change
-49.28%
Global Rank
Country Rank
#3,288 United States
Category
ChartMarket Cap Chart
Since April 1, 2021, Arqit Quantum's market cap has decreased from $414.00M to $272.09M, a decrease of -34.28%. That is a compound annual growth rate of -7.27%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 23, 2026 | 272.09M | -20.55% |
| Dec 31, 2025 | 342.46M | -29.48% |
| Dec 31, 2024 | 485.66M | 524.48% |
| Dec 29, 2023 | 77.77M | -82.44% |
| Dec 30, 2022 | 442.86M | -84.60% |
| Dec 31, 2021 | 2.88B | 594.63% |
| Apr 1, 2021 | Upgrade Pro | Upgrade Pro |
Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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