ACI Worldwide Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 19, 2026	52.06	53.34	52.06	52.22	52.22	-1.10%	743,739
Oct 16, 2026	53.00	53.44	51.55	52.80	52.80	0.48%	836,961
Oct 15, 2026	51.77	52.77	51.65	52.55	52.55	2.90%	738,911
Oct 14, 2026	50.94	51.24	50.52	51.07	51.07	-0.25%	545,368
Oct 13, 2026	51.47	52.00	51.01	51.20	51.20	0.27%	394,007
Oct 12, 2026	50.99	51.56	50.99	51.06	51.06	0.37%	517,491
Oct 9, 2026	51.31	51.57	50.39	50.87	50.87	-0.39%	426,212
Oct 8, 2026	50.56	51.15	50.18	51.07	51.07	0.83%	493,768
Oct 7, 2026	50.25	50.97	50.25	50.65	50.65	-0.12%	562,016
Oct 6, 2026	51.60	51.60	50.19	50.71	50.71	-1.00%	726,006
Oct 5, 2026	50.16	51.65	50.15	51.22	51.22	2.13%	1,007,413
Oct 2, 2026	50.44	50.91	49.59	50.15	50.15	0.93%	577,637
Oct 1, 2026	49.28	50.26	49.11	49.69	49.69	1.66%	840,640
Sep 30, 2026	48.20	49.37	47.81	48.88	48.88	0.60%	1,121,380
Sep 29, 2026	48.75	49.20	48.31	48.59	48.59	-0.84%	648,038
Sep 28, 2026	48.51	49.18	48.28	49.00	49.00	-1.03%	465,804
Sep 25, 2026	49.60	49.98	49.44	49.51	49.51	-0.22%	585,404
Sep 24, 2026	49.71	49.92	48.84	49.62	49.62	0.81%	492,026
Sep 23, 2026	49.12	49.83	48.86	49.22	49.22	0.06%	537,329
Sep 22, 2026	50.62	50.78	48.80	49.19	49.19	-0.81%	779,938
Sep 21, 2026	50.27	50.64	49.57	49.59	49.59	-1.35%	657,356
Sep 18, 2026	51.31	51.31	50.00	50.27	50.27	-1.78%	1,678,965
Sep 17, 2026	51.54	51.76	50.93	51.18	51.18	-0.78%	688,583
Sep 16, 2026	50.63	52.02	50.46	51.58	51.58	0.57%	646,692
Sep 15, 2026	52.04	52.43	51.02	51.29	51.29	-2.58%	944,570
Sep 14, 2026	53.18	53.60	52.19	52.65	52.65	1.08%	667,651
Sep 11, 2026	52.23	52.35	51.42	52.09	52.09	0.23%	616,933
Sep 10, 2026	51.83	52.18	51.25	51.97	51.97	0.02%	715,177
Sep 9, 2026	51.63	51.99	50.95	51.96	51.96	-0.04%	845,873
Sep 8, 2026	51.95	52.24	50.77	51.98	51.98	-1.83%	969,214
Sep 4, 2026	52.12	53.11	51.94	52.95	52.95	0.08%	586,610
Sep 3, 2026	53.11	53.73	52.21	52.91	52.91	0.86%	596,134
Sep 2, 2026	51.39	52.55	50.52	52.46	52.46	2.40%	602,282
Sep 1, 2026	52.67	53.00	51.05	51.23	51.23	-3.85%	823,298
Aug 31, 2026	53.23	53.85	52.90	53.28	53.28	-1.02%	1,050,020
Aug 28, 2026	54.14	54.59	53.67	53.83	53.83	-0.73%	862,535
Aug 27, 2026	53.16	54.26	52.99	54.23	54.23	2.23%	726,981
Aug 26, 2026	51.87	53.05	51.64	53.04	53.04	1.22%	741,636
Aug 25, 2026	52.37	52.70	51.72	52.40	52.40	-0.02%	645,367
Aug 24, 2026	51.94	52.71	51.94	52.41	52.41	1.06%	559,674
Aug 21, 2026	51.55	52.51	51.31	51.86	51.86	0.56%	562,676
Aug 20, 2026	51.79	52.08	51.38	51.57	51.57	-0.77%	632,653
Aug 19, 2026	52.21	53.00	51.77	51.97	51.97	-0.38%	955,169
Aug 18, 2026	52.68	53.50	51.83	52.17	52.17	0.08%	966,447
Aug 17, 2026	52.62	53.11	51.86	52.13	52.13	-2.45%	1,155,888
Aug 14, 2026	53.96	54.13	52.49	53.44	53.44	-0.41%	680,777
Aug 13, 2026	53.20	53.75	52.06	53.66	53.66	1.73%	1,002,303
Aug 12, 2026	51.70	52.78	51.60	52.75	52.75	0.98%	916,099
Aug 11, 2026	52.49	53.07	51.98	52.24	52.24	-1.15%	1,105,886
Aug 10, 2026	52.50	53.40	51.87	52.85	52.85	-1.53%	1,562,386