NASDAQ:ARQQ | Historical Stock Price | Arqit Quantum Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2021-04-01 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.66$11.23$34.49$105.93$325.32$999.072021-04-012026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$598.75$598.759,776
2021-12-30$596.50$596.5017,256
2021-12-29$582.50$582.5025,456
2021-12-28$606.25$606.2516,588
2021-12-27$625.50$625.5024,520
2021-12-23$624.75$624.7530,736
2021-12-22$628.13$628.1342,988
2021-12-21$552.25$552.2533,812
2021-12-20$480.25$480.2518,020
2021-12-17$498.00$498.0054,388
2021-12-16$408.25$408.2519,232
2021-12-15$403.75$403.7537,260
2021-12-14$430.25$430.2516,272
2021-12-13$442.75$442.7533,684
2021-12-10$518.00$518.0015,004
2021-12-09$533.25$533.2532,488
2021-12-08$612.75$612.7528,356
2021-12-07$597.00$597.0050,048
2021-12-06$676.75$676.7542,016
2021-12-03$935.25$935.2523,060
2021-12-02$947.00$947.0024,052
2021-12-01$879.50$879.5059,168
2021-11-30$951.50$951.5034,712
2021-11-29$895.00$895.0038,708
2021-11-26$871.25$871.2543,068
2021-11-24$767.50$767.5027,248
2021-11-23$669.75$669.7517,812
2021-11-22$674.25$674.2528,720
2021-11-19$612.50$612.5022,892
2021-11-18$644.75$644.7533,596
2021-11-17$634.00$634.0078,336
2021-11-16$598.25$598.2548,468
2021-11-15$556.75$556.7514,412
2021-11-12$564.50$564.5061,216
2021-11-11$492.50$492.503,264
2021-11-10$502.75$502.7513,800
2021-11-09$497.50$497.5011,372
2021-11-08$512.00$512.0021,680
2021-11-05$544.25$544.2514,964
2021-11-04$571.25$571.2515,516
2021-11-03$562.50$562.5021,140
2021-11-02$510.00$510.0026,776
2021-11-01$574.00$574.0044,260
2021-10-29$546.75$546.7558,992
2021-10-28$448.50$448.5024,768
2021-10-27$477.75$477.7526,228
2021-10-26$550.00$550.0081,512
2021-10-25$503.25$503.2539,188
2021-10-22$414.50$414.5012,548
2021-10-21$417.50$417.5038,260
2021-10-20$437.00$437.0076,628
2021-10-19$389.00$389.0064,120
2021-10-18$359.25$359.2524,720
2021-10-15$366.25$366.2541,652
2021-10-14$348.75$348.7530,584
2021-10-13$348.75$348.7542,768
2021-10-12$365.50$365.5031,432
2021-10-11$390.25$390.2519,052
2021-10-08$442.00$442.0049,292
2021-10-07$471.50$471.5035,252
2021-10-06$462.50$462.5021,412
2021-10-05$534.00$534.0032,444
2021-10-04$519.00$519.0043,740
2021-10-01$457.50$457.5027,772
2021-09-30$501.75$501.7519,252
2021-09-29$528.50$528.5068,412
2021-09-28$476.75$476.7538,568
2021-09-27$516.25$516.2552,312
2021-09-24$606.00$606.0069,532
2021-09-23$700.00$700.00108,772
2021-09-22$890.00$890.00186,416
2021-09-21$789.25$789.25211,184
2021-09-20$623.50$623.50141,532
2021-09-17$456.50$456.5076,084
2021-09-16$448.75$448.75150,692
2021-09-15$354.75$354.7534,176
2021-09-14$314.75$314.7533,712
2021-09-13$374.50$374.5024,768
2021-09-10$380.25$380.2540,364
2021-09-09$355.00$355.0069,728
2021-09-08$350.25$350.25597,476
2021-09-07$282.50$282.50141,312
2021-09-03$208.75$208.755,960
2021-09-02$209.75$209.756,016
2021-09-01$212.50$212.5017,212
2021-08-31$248.75$248.7597,748
2021-08-30$249.75$249.7512,988
2021-08-27$250.00$250.006,288
2021-08-26$249.00$249.0015,888
2021-08-25$249.00$249.0038,884
2021-08-24$247.50$247.5021,712
2021-08-23$248.50$248.5015,896
2021-08-20$247.50$247.5012,624
2021-08-19$248.25$248.251,988
2021-08-18$248.00$248.0033,400
2021-08-17$249.00$249.0050,288
2021-08-16$249.25$249.2579,780
2021-08-13$249.25$249.2521,532
2021-08-12$249.25$249.2563,492
2021-08-11$249.00$249.0017,404
2021-08-10$249.25$249.2511,604
2021-08-09$249.25$249.2517,736
2021-08-06$248.75$248.7515,044
2021-08-05$248.75$248.7519,432
2021-08-04$248.50$248.501,952
2021-08-03$248.75$248.7516,172
2021-08-02$248.25$248.2520,180
2021-07-30$247.25$247.25436
2021-07-29$247.50$247.506,232
2021-07-28$247.63$247.632,956
2021-07-27$248.00$248.0024,348
2021-07-26$248.25$248.259,292
2021-07-23$248.75$248.75940
2021-07-22$248.00$248.0026,136
2021-07-21$247.77$247.77540
2021-07-20$247.50$247.50332
2021-07-19$247.75$247.752,904
2021-07-16$248.00$248.00416
2021-07-15$248.50$248.501,528
2021-07-14$247.50$247.50116
2021-07-13$247.50$247.502,868
2021-07-12$247.95$247.95124
2021-07-09$247.50$247.50436
2021-07-08$247.63$247.63980
2021-07-07$247.75$247.75528
2021-07-06$247.38$247.381,152
2021-07-02$248.25$248.25288
2021-07-01$247.85$247.852,040
2021-06-30$247.50$247.501,464
2021-06-29$247.50$247.501,684
2021-06-28$248.25$248.25684
2021-06-25$248.50$248.501,296
2021-06-24$248.25$248.251,700
2021-06-23$248.25$248.25444
2021-06-22$248.25$248.25492
2021-06-21$247.63$247.63748
2021-06-18$247.75$247.751,092
2021-06-17$247.50$247.50660
2021-06-16$247.75$247.75152
2021-06-15$247.50$247.50908
2021-06-14$248.25$248.25544
2021-06-11$248.75$248.753,776
2021-06-10$248.25$248.254,200
2021-06-09$248.00$248.005,800
2021-06-08$247.75$247.7512,648
2021-06-07$248.00$248.001,412
2021-06-04$248.00$248.001,964
2021-06-03$248.00$248.00320
2021-06-02$247.75$247.7513,776
2021-06-01$248.25$248.251,288
2021-05-28$246.50$246.5048
2021-05-27$246.50$246.502,168
2021-05-26$246.25$246.254,720
2021-05-25$246.25$246.25828
2021-05-24$246.25$246.25216
2021-05-21$246.50$246.5016,516
2021-05-20$246.00$246.0010,176
2021-05-19$245.00$245.0015,856
2021-05-18$244.75$244.7515,916
2021-05-17$245.75$245.756,108
2021-05-14$246.25$246.255,440
2021-05-13$246.50$246.5029,268
2021-05-12$247.00$247.00115,712
2021-05-11$242.50$242.5016
2021-05-10$244.75$244.758
2021-05-07$243.00$243.003,208
2021-05-06$243.88$243.8832
2021-05-05$244.75$244.751,132
2021-05-04$243.25$243.25172
2021-05-03$243.75$243.7556
2021-04-30$244.25$244.2548
2021-04-29$245.00$245.003,500
2021-04-28$246.25$246.250
2021-04-27$246.25$246.2544
2021-04-26$243.25$243.250
2021-04-23$243.25$243.258
2021-04-22$243.75$243.758
2021-04-21$243.50$243.5044
2021-04-20$242.25$242.2576
2021-04-19$251.00$251.000
2021-04-16$251.00$251.000
2021-04-15$251.00$251.000
2021-04-14$251.00$251.00928
2021-04-13$248.25$248.25232
2021-04-12$248.50$248.50112
2021-04-09$248.75$248.75300
2021-04-08$248.75$248.750
2021-04-07$248.75$248.754
2021-04-06$248.75$248.75488
2021-04-05$240.00$240.000
2021-04-01$240.00$240.004