Arqit Quantum Stock Price History
NASDAQ: ARQQTechnologyComputer Software: Prepackaged SoftwareUSD
17.23-1.20 (-6.51%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
ARQQ price history at a glance
The price history for Arqit Quantum (ARQQ) on this page begins on March 29, 2021, when the stock closed at $240.00; it most recently closed at $17.23 on October 5, 2026. The highest price in this record is $1,038.00, reached on September 20, 2021; the latest close is 98.3% below that peak. Across the 4 complete calendar years in the table, ARQQ finished higher in 1 and lower in 3. Its best year was 2024 (+234.7%) and its worst was 2023 (-86.9%).
Over roughly 6 years the share price changed -92.8%, a -37.9% compound annual price return (excluding dividends). In the last 12 months alone, ARQQ has lost 68.0%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 2021
- $1,038.00
- Date of high
- Sep 20, 2021
- Low since 2021
- $3.72
- Date of low
- Sep 23, 2024
- 52-week high
- $61.11
- 52-week low
- $11.52
- Last close
- $17.23
ARQQ returns
1 week
-30.02%
1 month
-20.38%
3 months
-9.70%
6 months
+37.51%
Year to date
-21.25%
1 year
-68.02%
3 years
+39.09%
5 years
-94.97%
ARQQ price return, excluding dividends.
ARQQ annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 17.23 | -29.79% |
| 2025 | 24.54 | -38.12% |
| 2024 | 39.66 | +234.68% |
| 2023 | 11.85 | -86.87% |
| 2022 | 90.25 | -84.93% |
| 2021* | 598.75 | +149.48% |
* Partial year: the record begins after the start of 2021; return measured from the first available close.
2026 return is year to date.
ARQQ daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 19.22 | 19.36 | 16.29 | 17.23 | -6.51% | |
| 22.15 | 22.50 | 17.81 | 18.43 | -18.27% | |
| 22.33 | 22.69 | 22.00 | 22.55 | -3.76% | |
| 23.98 | 24.80 | 23.33 | 23.43 | -1.06% | |
| 24.34 | 24.44 | 23.48 | 23.68 | -3.82% | |
| 24.30 | 24.93 | 24.08 | 24.62 | +2.80% | |
| 24.00 | 24.16 | 23.05 | 23.95 | -0.46% | |
| 24.48 | 25.00 | 23.90 | 24.06 | -0.25% | |
| 24.86 | 25.10 | 23.80 | 24.12 | -2.11% | |
| 24.30 | 24.86 | 23.56 | 24.64 | +0.16% | |
| 23.16 | 24.99 | 22.49 | 24.60 | +6.40% | |
| 21.94 | 23.61 | 21.70 | 23.12 | +2.57% | |
| 23.30 | 23.55 | 22.02 | 22.54 | -2.17% | |
| 23.51 | 24.50 | 22.52 | 23.04 | -2.08% | |
| 20.55 | 23.68 | 20.53 | 23.53 | +16.89% | |
| 19.76 | 20.48 | 18.41 | 20.13 | +3.12% | |
| 19.59 | 19.95 | 19.25 | 19.52 | +2.68% | |
| 18.21 | 19.33 | 18.08 | 19.01 | +4.05% | |
| 16.66 | 19.00 | 16.40 | 18.27 | +12.15% | |
| 19.22 | 19.22 | 16.07 | 16.29 | -18.75% | |
| 20.71 | 20.95 | 20.00 | 20.05 | -2.58% | |
| 20.70 | 21.71 | 20.55 | 20.58 | -4.90% | |
| 22.21 | 22.82 | 21.40 | 21.64 | -4.21% | |
| 22.17 | 23.29 | 22.12 | 22.59 | +5.71% | |
| 20.85 | 21.40 | 20.23 | 21.37 | +3.64% | |
| 20.54 | 21.36 | 20.20 | 20.62 | +0.39% | |
| 18.60 | 21.28 | 18.60 | 20.54 | +8.68% | |
| 19.25 | 19.65 | 18.74 | 18.90 | -4.93% | |
| 19.33 | 20.46 | 19.24 | 19.88 | -0.80% | |
| 21.42 | 21.70 | 19.90 | 20.04 | -6.62% | |
| 21.05 | 21.95 | 20.85 | 21.46 | +5.40% | |
| 20.38 | 20.99 | 19.90 | 20.36 | -0.29% | |
| 20.92 | 21.70 | 20.12 | 20.42 | +1.44% | |
| 20.75 | 20.75 | 19.25 | 20.13 | -4.78% | |
| 21.34 | 22.49 | 20.35 | 21.14 | +0.96% | |
| 21.15 | 21.57 | 20.35 | 20.94 | -2.74% | |
| 21.50 | 21.88 | 20.75 | 21.53 | -2.05% | |
| 22.82 | 23.86 | 21.80 | 21.98 | -9.73% | |
| 24.12 | 24.63 | 23.30 | 24.35 | -0.04% | |
| 23.47 | 24.90 | 23.30 | 24.36 | +2.57% | |
| 23.92 | 24.37 | 23.02 | 23.75 | +0.13% | |
| 24.41 | 24.50 | 23.15 | 23.72 | -2.75% | |
| 23.09 | 24.50 | 22.58 | 24.39 | +7.87% | |
| 23.00 | 23.42 | 22.04 | 22.61 | -1.27% | |
| 21.98 | 23.19 | 21.51 | 22.90 | +6.66% | |
| 20.69 | 22.27 | 20.22 | 21.47 | +2.38% | |
| 21.69 | 21.83 | 20.01 | 20.97 | -4.60% | |
| 19.64 | 22.00 | 18.90 | 21.98 | +19.13% | |
| 17.46 | 18.59 | 17.14 | 18.45 | +7.71% | |
| 17.98 | 18.39 | 16.82 | 17.13 | -3.27% | |
| 16.15 | 17.80 | 16.04 | 17.71 | +14.33% | |
| 17.42 | 18.00 | 15.42 | 15.49 | -11.74% | |
| 17.59 | 18.06 | 16.66 | 17.55 | -3.47% | |
| 17.17 | 18.99 | 17.17 | 18.18 | +9.19% | |
| 18.48 | 18.78 | 16.63 | 16.65 | -9.26% | |
| 17.29 | 19.37 | 17.19 | 18.35 | +1.49% | |
| 17.45 | 19.15 | 17.19 | 18.08 | +5.12% | |
| 17.72 | 18.08 | 16.61 | 17.20 | -0.06% | |
| 17.35 | 17.87 | 16.85 | 17.21 | -1.21% | |
| 16.29 | 18.14 | 16.06 | 17.42 | +5.38% | |
| 17.70 | 18.13 | 16.24 | 16.53 | -9.42% | |
| 19.02 | 19.53 | 17.72 | 18.25 | -2.56% | |
| 18.23 | 18.93 | 17.94 | 18.73 | +3.94% | |
| 18.60 | 18.80 | 17.40 | 18.02 | -5.56% | |
| 20.70 | 21.00 | 18.60 | 19.08 | -6.79% | |
| 20.05 | 21.33 | 19.53 | 20.47 | +2.09% | |
| 19.23 | 21.48 | 19.19 | 20.05 | +1.06% | |
| 21.73 | 21.73 | 18.95 | 19.84 | -10.35% | |
| 24.46 | 24.82 | 21.77 | 22.13 | -5.89% | |
| 28.70 | 28.75 | 23.20 | 23.52 | -18.49% | |
| 29.26 | 30.98 | 28.29 | 28.85 | -2.93% | |
| 26.78 | 30.33 | 25.91 | 29.72 | +8.82% | |
| 24.80 | 28.59 | 24.00 | 27.31 | +12.57% | |
| 26.50 | 28.14 | 24.11 | 24.26 | -11.20% | |
| 26.74 | 29.15 | 25.04 | 27.32 | -4.61% | |
| 28.21 | 29.29 | 24.51 | 28.64 | -1.38% | |
| 21.05 | 29.89 | 21.05 | 29.04 | +35.57% | |
| 23.62 | 24.39 | 20.29 | 21.42 | -12.14% | |
| 23.31 | 25.70 | 21.01 | 24.38 | +7.88% | |
| 19.89 | 24.09 | 19.50 | 22.60 | +13.34% | |
| 17.38 | 20.53 | 17.00 | 19.94 | +11.27% | |
| 14.37 | 18.63 | 14.37 | 17.92 | +31.76% | |
| 13.49 | 14.07 | 13.17 | 13.60 | -0.66% | |
| 13.05 | 13.84 | 12.77 | 13.69 | +4.58% | |
| 12.16 | 13.91 | 12.16 | 13.09 | +4.80% | |
| 13.20 | 14.16 | 12.07 | 12.49 | -2.57% | |
| 12.66 | 13.25 | 12.30 | 12.82 | +5.60% | |
| 13.90 | 14.01 | 11.80 | 12.14 | -14.63% | |
| 14.31 | 14.83 | 14.01 | 14.22 | -2.87% | |
| 15.81 | 15.96 | 14.55 | 14.64 | -10.02% | |
| 17.24 | 17.54 | 15.88 | 16.27 | -4.07% | |
| 16.23 | 17.33 | 15.88 | 16.96 | +2.73% | |
| 16.81 | 17.02 | 15.92 | 16.51 | -2.37% | |
| 16.00 | 17.80 | 15.88 | 16.91 | +5.03% | |
| 16.47 | 16.47 | 15.38 | 16.10 | -2.95% | |
| 18.04 | 18.04 | 15.90 | 16.59 | -5.15% | |
| 16.76 | 19.00 | 16.49 | 17.49 | +6.32% | |
| 13.96 | 17.40 | 13.81 | 16.45 | +25.67% | |
| 12.17 | 13.21 | 12.16 | 13.09 | +7.56% | |
| 12.50 | 12.55 | 11.91 | 12.17 | -4.47% | |
| 13.28 | 13.32 | 12.42 | 12.74 | -4.50% | |
| 13.53 | 13.53 | 12.91 | 13.34 | -3.82% | |
| 13.74 | 14.26 | 12.91 | 13.87 | +0.29% | |
| 14.10 | 14.24 | 13.50 | 13.83 | -3.96% | |
| 15.06 | 15.60 | 13.90 | 14.40 | -4.00% | |
| 14.66 | 15.50 | 14.20 | 15.00 | +0.27% | |
| 15.43 | 15.48 | 14.51 | 14.96 | -3.05% | |
| 15.43 | 16.24 | 15.05 | 15.43 | -1.59% | |
| 14.99 | 15.75 | 14.75 | 15.68 | +7.03% | |
| 14.62 | 14.87 | 13.95 | 14.65 | +1.60% | |
| 14.60 | 15.19 | 14.37 | 14.42 | -0.69% | |
| 14.57 | 14.64 | 13.97 | 14.52 | +1.11% | |
| 13.16 | 14.41 | 13.12 | 14.36 | +8.62% | |
| 14.01 | 14.11 | 13.04 | 13.22 | -6.17% | |
| 14.38 | 14.46 | 13.89 | 14.09 | -3.36% | |
| 14.39 | 15.00 | 14.25 | 14.58 | +0.34% | |
| 14.55 | 14.86 | 13.70 | 14.53 | +0.55% | |
| 15.40 | 15.50 | 14.14 | 14.45 | -8.31% | |
| 15.48 | 16.19 | 15.27 | 15.76 | +6.13% | |
| 16.19 | 16.90 | 14.80 | 14.85 | -8.05% | |
| 15.43 | 16.39 | 15.40 | 16.15 | +0.75% | |
| 16.26 | 16.74 | 15.86 | 16.03 | +1.65% | |
| 17.61 | 17.70 | 15.58 | 15.77 | -2.83% | |
| 15.25 | 16.60 | 15.01 | 16.23 | +16.18% | |
| 13.65 | 14.67 | 13.65 | 13.97 | +5.51% | |
| 12.30 | 13.35 | 11.91 | 13.24 | +5.67% | |
| 12.49 | 12.85 | 12.40 | 12.53 | +0.72% | |
| 12.73 | 12.99 | 12.36 | 12.44 | -3.27% | |
| 13.76 | 13.97 | 12.61 | 12.86 | +2.47% | |
| 13.00 | 13.14 | 12.21 | 12.55 | -5.78% | |
| 13.76 | 14.25 | 13.17 | 13.32 | -4.65% | |
| 12.74 | 13.99 | 12.31 | 13.97 | +2.80% | |
| 13.70 | 14.28 | 13.25 | 13.59 | +2.57% | |
| 12.01 | 13.32 | 12.01 | 13.25 | +11.34% | |
| 11.91 | 12.18 | 11.52 | 11.90 | +1.02% | |
| 12.58 | 12.58 | 11.59 | 11.78 | -7.75% | |
| 13.19 | 13.58 | 12.74 | 12.77 | -6.24% | |
| 13.94 | 14.37 | 13.35 | 13.62 | +0.37% | |
| 14.21 | 14.38 | 13.54 | 13.57 | -5.63% | |
| 13.55 | 14.50 | 13.20 | 14.38 | +5.74% | |
| 13.70 | 14.15 | 13.16 | 13.60 | -1.95% | |
| 13.44 | 14.00 | 12.91 | 13.87 | +1.76% | |
| 14.00 | 14.40 | 13.60 | 13.63 | -3.74% | |
| 13.97 | 14.60 | 13.88 | 14.16 | +1.18% | |
| 13.97 | 14.33 | 13.63 | 14.00 | +2.68% | |
| 14.20 | 14.75 | 13.61 | 13.63 | -2.99% | |
| 14.51 | 14.86 | 14.04 | 14.05 | -4.75% | |
| 15.26 | 15.54 | 14.42 | 14.75 | -2.25% | |
| 15.72 | 15.84 | 15.00 | 15.09 | -2.52% | |
| 15.07 | 15.57 | 14.68 | 15.48 | +0.45% | |
| 15.70 | 16.33 | 15.36 | 15.41 | -3.20% | |
| 16.24 | 16.73 | 15.69 | 15.92 | -4.44% | |
| 16.20 | 16.75 | 16.01 | 16.66 | +4.58% | |
| 15.98 | 16.31 | 15.31 | 15.93 | -5.52% | |
| 15.72 | 16.93 | 15.43 | 16.86 | +2.43% | |
| 16.55 | 16.63 | 16.01 | 16.46 | -5.73% | |
| 17.27 | 17.81 | 16.84 | 17.46 | +3.68% | |
| 17.10 | 17.54 | 16.71 | 16.84 | +2.75% | |
| 15.26 | 16.50 | 15.26 | 16.39 | +7.09% | |
| 15.55 | 15.67 | 15.02 | 15.31 | -3.44% | |
| 16.63 | 17.00 | 15.75 | 15.85 | -5.71% | |
| 16.00 | 16.87 | 15.82 | 16.81 | +3.38% | |
| 16.45 | 17.04 | 15.85 | 16.26 | -1.63% | |
| 16.90 | 16.90 | 16.06 | 16.53 | -2.76% | |
| 17.16 | 17.45 | 16.40 | 17.00 | +1.31% | |
| 17.32 | 17.33 | 15.89 | 16.78 | -3.12% | |
| 17.77 | 17.89 | 16.59 | 17.32 | -1.37% | |
| 18.31 | 18.60 | 17.50 | 17.56 | -5.08% | |
| 18.87 | 19.09 | 18.11 | 18.50 | -0.48% | |
| 16.89 | 19.21 | 16.81 | 18.59 | +15.32% | |
| 17.48 | 18.14 | 16.00 | 16.12 | -12.01% | |
| 19.76 | 19.77 | 17.60 | 18.32 | -7.43% | |
| 20.24 | 20.58 | 18.54 | 19.79 | -1.88% | |
| 20.02 | 20.92 | 19.51 | 20.17 | -0.74% | |
| 21.64 | 22.04 | 20.00 | 20.32 | -8.76% | |
| 22.93 | 22.93 | 21.51 | 22.27 | -3.55% | |
| 23.96 | 24.00 | 22.66 | 23.09 | -0.94% | |
| 22.94 | 23.95 | 22.66 | 23.31 | +0.17% | |
| 24.54 | 24.82 | 22.91 | 23.27 | -3.84% | |
| 25.31 | 25.31 | 23.91 | 24.20 | -4.54% | |
| 25.35 | 26.10 | 25.00 | 25.35 | +1.56% | |
| 25.28 | 26.37 | 23.22 | 24.96 | -0.76% | |
| 24.56 | 26.50 | 24.00 | 25.15 | -5.45% | |
| 26.88 | 27.77 | 26.35 | 26.60 | -1.37% | |
| 26.61 | 28.15 | 26.12 | 26.97 | +1.35% | |
| 26.06 | 26.85 | 25.27 | 26.61 | +1.64% | |
| 26.70 | 27.16 | 24.67 | 26.18 | -1.58% | |
| 26.15 | 27.00 | 25.23 | 26.60 | -1.00% | |
| 27.80 | 28.17 | 26.56 | 26.87 | -1.50% | |
| 27.00 | 27.67 | 26.55 | 27.28 | +1.04% | |
| 27.40 | 27.73 | 26.68 | 27.00 | -2.28% | |
| 28.29 | 28.64 | 26.50 | 27.63 | -0.90% | |
| 25.15 | 29.20 | 25.15 | 27.88 | +13.61% | |
| 22.78 | 24.73 | 21.60 | 24.54 | +12.16% | |
| 21.85 | 22.25 | 21.43 | 21.88 | -0.27% | |
| 21.72 | 22.46 | 21.69 | 21.94 | +1.01% | |
| 22.15 | 23.25 | 21.63 | 21.72 | -4.78% | |
| 24.94 | 24.94 | 22.72 | 22.81 | -9.81% | |
| 25.07 | 25.38 | 24.27 | 25.29 | -0.12% | |
| 25.89 | 26.06 | 24.70 | 25.32 | -4.42% | |
| 26.00 | 28.09 | 25.80 | 26.49 | +3.92% | |
| 23.99 | 26.23 | 23.99 | 25.49 | +6.52% | |
| 23.16 | 25.00 | 23.14 | 23.93 | +6.54% | |
| 25.02 | 25.73 | 22.38 | 22.46 | -9.18% | |
| 24.01 | 25.19 | 23.65 | 24.73 | +1.56% | |
| 28.16 | 28.33 | 24.15 | 24.35 | -14.11% | |
| 28.98 | 30.45 | 27.65 | 28.35 | -4.55% | |
| 27.88 | 29.98 | 27.50 | 29.70 | +2.52% | |
| 29.83 | 29.88 | 28.30 | 28.97 | -2.23% | |
| 28.07 | 30.00 | 27.04 | 29.63 | 0.00% | |
| 30.38 | 30.38 | 28.12 | 29.63 | -2.63% | |
| 31.28 | 31.75 | 29.52 | 30.43 | -3.40% | |
| 29.82 | 31.69 | 28.90 | 31.50 | +6.64% | |
| 27.96 | 30.08 | 26.69 | 29.54 | +7.11% | |
| 26.60 | 28.38 | 26.40 | 27.58 | +4.39% | |
| 27.35 | 27.83 | 26.29 | 26.42 | -7.33% | |
| 28.01 | 28.88 | 27.05 | 28.51 | +3.41% | |
| 26.94 | 27.90 | 26.40 | 27.57 | +7.11% | |
| 26.46 | 26.46 | 24.63 | 25.74 | -2.09% | |
| 24.51 | 26.48 | 24.01 | 26.29 | +7.88% | |
| 24.55 | 24.76 | 21.59 | 24.37 | +0.41% | |
| 28.18 | 29.90 | 24.12 | 24.27 | -10.64% | |
| 27.29 | 28.27 | 26.70 | 27.16 | +2.65% | |
| 25.53 | 26.90 | 24.60 | 26.46 | +1.93% | |
| 27.84 | 28.59 | 25.61 | 25.96 | -5.53% | |
| 25.56 | 29.38 | 25.43 | 27.48 | -0.18% | |
| 29.25 | 29.69 | 27.30 | 27.53 | -9.20% | |
| 31.50 | 32.72 | 29.86 | 30.32 | -3.47% | |
| 30.90 | 32.32 | 30.62 | 31.41 | -2.42% | |
| 36.16 | 36.50 | 31.85 | 32.19 | -4.88% | |
| 30.47 | 34.51 | 29.86 | 33.84 | +5.85% | |
| 34.95 | 35.00 | 31.39 | 31.97 | -6.66% | |
| 36.54 | 36.87 | 33.60 | 34.25 | -4.89% | |
| 38.52 | 40.30 | 36.00 | 36.01 | -11.59% | |
| 43.36 | 43.36 | 38.50 | 40.73 | -6.65% | |
| 43.34 | 46.20 | 42.44 | 43.63 | +2.93% | |
| 43.11 | 44.55 | 41.50 | 42.39 | -6.57% | |
| 43.00 | 46.65 | 41.80 | 45.37 | +5.54% | |
| 47.01 | 48.00 | 42.00 | 42.99 | -8.61% | |
| 45.43 | 49.33 | 43.51 | 47.04 | +10.14% | |
| 41.39 | 44.19 | 40.33 | 42.71 | +9.43% | |
| 38.91 | 39.99 | 36.40 | 39.03 | +11.26% | |
| 37.59 | 37.79 | 33.60 | 35.08 | -9.00% | |
| 39.00 | 40.54 | 37.80 | 38.55 | -2.55% | |
| 42.67 | 43.16 | 38.91 | 39.56 | -4.65% | |
| 40.56 | 41.64 | 37.85 | 41.49 | +4.88% | |
| 53.60 | 53.60 | 38.81 | 39.56 | -26.01% | |
| 60.53 | 61.11 | 50.10 | 53.47 | -8.06% | |
| 57.00 | 60.50 | 53.53 | 58.16 | -0.19% | |
| 50.86 | 58.80 | 50.85 | 58.27 | +20.09% | |
| 53.88 | 54.35 | 48.00 | 48.52 | -9.95% | |
| 52.00 | 55.86 | 50.26 | 53.88 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the ARQQ chart for longer ranges.