Arqit Quantum Inc. Ordinary SharesARQQ
Closing prices as of Oct 6, 2026Updated once daily after the US close — not a live quote.

$23.35

+9.68% past month

Notable price movement

  • Oct 6, 2026

    $23.43-1.06%

  • Oct 5, 2026

    $23.68-3.82%

    The shares fell while the broad market rose: the S&P 500 ETF (SPY) moved +0.67% in the same session, so the decline was not shared by the broad market . Volume was 0.5x the trailing 20-session average, and the session traded between 23.48 and 24.44 .

  • Oct 2, 2026

    $24.62+2.80%

    The shares rose 2.80% while the S&P 500 ETF (SPY) rose 0.74% . The broad market also gained, but the company's move was considerably larger than the market's. Volume was 0.5x its trailing 20-session average, and the session traded between 24.08 and 24.93 .

  • Oct 1, 2026

    $23.95-0.46%

  • Sep 30, 2026

    $24.06-0.25%

  • Sep 29, 2026

    $24.12-2.11%

    The stock closed down 2.11%, while the S&P 500 ETF (SPY) moved -0.18% over the same session, so the decline was not shared by the broad market . Volume was 0.5x the trailing 20-session average, and the session traded between 23.80 and 25.10 .

  • Sep 28, 2026

    $24.64+0.16%

Closing prices for ARQQ. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

Prices and financial data are historical and provided for research only. Not investment advice.