NASDAQ:ACIW | Historical Stock Price | ACI WORLDWIDE, 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
1995-02-24 to 2026-09-04
Data captured

Stock Price Chart

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

$1.87$3.76$7.56$15.18$30.49$61.231995-02-242026-08-27

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

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Historical Stock Price — 2021

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2021-12-31$34.70$34.70461,500——
2021-12-30$34.87$34.87456,500——
2021-12-29$35.15$35.15589,300——
2021-12-28$34.78$34.78563,500——
2021-12-27$34.99$34.99506,900——
2021-12-23$34.92$34.92517,000——
2021-12-22$34.66$34.66978,300——
2021-12-21$34.01$34.01645,200——
2021-12-20$32.36$32.36986,900——
2021-12-17$33.24$33.241,711,200——
2021-12-16$33.03$33.031,122,600——
2021-12-15$33.47$33.47916,900——
2021-12-14$32.55$32.55914,900——
2021-12-13$33.13$33.13659,500——
2021-12-10$33.09$33.09517,900——
2021-12-09$32.92$32.92679,000——
2021-12-08$33.43$33.43899,300——
2021-12-07$32.20$32.201,093,000——
2021-12-06$31.67$31.671,298,300——
2021-12-03$29.73$29.73805,100——
2021-12-02$29.82$29.82916,500——
2021-12-01$28.39$28.39843,400——
2021-11-30$29.14$29.141,085,100——
2021-11-29$30.06$30.06782,600——
2021-11-26$30.33$30.33537,500——
2021-11-24$31.92$31.92356,700——
2021-11-23$32.04$32.04630,400——
2021-11-22$31.95$31.95616,200——
2021-11-19$32.91$32.91563,000——
2021-11-18$33.22$33.22990,200——
2021-11-17$33.86$33.861,032,800——
2021-11-16$34.52$34.52759,200——
2021-11-15$34.71$34.71643,600——
2021-11-12$35.15$35.15683,900——
2021-11-11$34.57$34.57682,200——
2021-11-10$34.77$34.771,102,500——
2021-11-09$33.84$33.841,782,700——
2021-11-08$31.64$31.641,459,500——
2021-11-05$32.35$32.355,500,800——
2021-11-04$31.59$31.591,563,100——
2021-11-03$30.90$30.90943,300——
2021-11-02$30.15$30.15714,600——
2021-11-01$32.13$32.13682,900——
2021-10-29$30.68$30.68704,200——
2021-10-28$30.99$30.99982,500——
2021-10-27$30.22$30.221,077,200——
2021-10-26$30.49$30.49535,900——
2021-10-25$30.52$30.52624,000——
2021-10-22$30.90$30.90482,900——
2021-10-21$31.04$31.04366,100——
2021-10-20$31.25$31.25331,100——
2021-10-19$31.09$31.09268,300——
2021-10-18$31.05$31.05272,900——
2021-10-15$31.20$31.20447,700——
2021-10-14$31.15$31.15592,000——
2021-10-13$30.08$30.08726,300——
2021-10-12$29.91$29.91554,000——
2021-10-11$29.52$29.52609,400——
2021-10-08$30.15$30.15496,500——
2021-10-07$30.82$30.82922,200——
2021-10-06$30.40$30.40416,400——
2021-10-05$30.69$30.69440,900——
2021-10-04$30.60$30.60586,800——
2021-10-01$31.46$31.46460,400——
2021-09-30$30.73$30.73486,000——
2021-09-29$31.02$31.02663,600——
2021-09-28$30.58$30.58614,300——
2021-09-27$31.32$31.321,056,200——
2021-09-24$31.41$31.41381,600——
2021-09-23$31.42$31.42812,600——
2021-09-22$30.99$30.99830,500——
2021-09-21$30.80$30.80728,600——
2021-09-20$30.79$30.79598,100——
2021-09-17$31.30$31.301,714,700——
2021-09-16$31.87$31.87530,200——
2021-09-15$32.45$32.45579,100——
2021-09-14$32.05$32.05693,300——
2021-09-13$32.28$32.28563,600——
2021-09-10$32.05$32.05527,800——
2021-09-09$32.54$32.54497,400——
2021-09-08$32.53$32.53549,300——
2021-09-07$32.82$32.82708,400——
2021-09-03$33.27$33.271,168,800——
2021-09-02$32.90$32.90817,000——
2021-09-01$32.47$32.47511,700——
2021-08-31$32.23$32.231,025,100——
2021-08-30$32.09$32.09584,900——
2021-08-27$31.87$31.87584,800——
2021-08-26$31.28$31.28589,600——
2021-08-25$31.20$31.20617,500——
2021-08-24$31.15$31.15591,900——
2021-08-23$31.40$31.40721,000——
2021-08-20$31.23$31.23723,100——
2021-08-19$30.57$30.571,096,900——
2021-08-18$31.28$31.28800,600——
2021-08-17$31.23$31.23488,300——
2021-08-16$31.56$31.56443,700——
2021-08-13$31.96$31.96492,900——
2021-08-12$32.22$32.22603,800——
2021-08-11$31.91$31.91586,700——
2021-08-10$31.82$31.82457,400——
2021-08-09$32.44$32.44844,200——
2021-08-06$32.42$32.42511,100——
2021-08-05$32.37$32.37595,700——
2021-08-04$32.55$32.55816,800——
2021-08-03$33.51$33.51434,700——
2021-08-02$33.75$33.75579,800——
2021-07-30$34.30$34.30430,700——
2021-07-29$34.71$34.71376,100——
2021-07-28$34.41$34.41499,600——
2021-07-27$34.27$34.27624,900——
2021-07-26$35.24$35.24538,000——
2021-07-23$35.19$35.19351,700——
2021-07-22$34.77$34.77581,400——
2021-07-21$35.78$35.78451,300——
2021-07-20$35.68$35.68919,000——
2021-07-19$34.86$34.86565,600——
2021-07-16$35.36$35.36581,800——
2021-07-15$35.75$35.75366,800——
2021-07-14$36.05$36.05692,300——
2021-07-13$36.55$36.55214,900——
2021-07-12$37.05$37.05192,500——
2021-07-09$37.16$37.16286,300——
2021-07-08$36.73$36.73402,400——
2021-07-07$37.58$37.58361,800——
2021-07-06$37.31$37.31334,700——
2021-07-02$37.28$37.28311,600——
2021-07-01$37.52$37.52407,600——
2021-06-30$37.14$37.14376,400——
2021-06-29$37.77$37.77292,600——
2021-06-28$38.18$38.18395,100——
2021-06-25$38.19$38.19995,100——
2021-06-24$37.96$37.96435,800——
2021-06-23$37.52$37.52557,200——
2021-06-22$38.08$38.08444,900——
2021-06-21$38.45$38.45421,700——
2021-06-18$37.85$37.85847,900——
2021-06-17$38.67$38.67406,700——
2021-06-16$38.70$38.70288,900——
2021-06-15$39.03$39.03729,400——
2021-06-14$39.02$39.02439,400——
2021-06-11$39.34$39.34305,000——
2021-06-10$38.54$38.54339,200——
2021-06-09$38.82$38.82326,500——
2021-06-08$39.14$39.14434,000——
2021-06-07$38.71$38.71402,000——
2021-06-04$39.13$39.13421,500——
2021-06-03$38.78$38.78310,600——
2021-06-02$38.82$38.82712,100——
2021-06-01$39.00$39.00574,500——
2021-05-28$38.26$38.26471,200——
2021-05-27$38.92$38.92806,000——
2021-05-26$39.32$39.32549,900——
2021-05-25$39.57$39.57425,300——
2021-05-24$39.93$39.93471,900——
2021-05-21$39.60$39.60480,300——
2021-05-20$39.67$39.67487,400——
2021-05-19$38.91$38.911,058,500——
2021-05-18$39.18$39.18545,800——
2021-05-17$39.86$39.86550,300——
2021-05-14$39.84$39.84767,000——
2021-05-13$39.50$39.50917,500——
2021-05-12$38.59$38.59967,500——
2021-05-11$39.28$39.28814,900——
2021-05-10$38.79$38.79944,700——
2021-05-07$38.33$38.33508,700——
2021-05-06$37.56$37.56666,400——
2021-05-05$37.16$37.16794,900——
2021-05-04$37.76$37.76561,100——
2021-05-03$38.07$38.07587,800——
2021-04-30$37.78$37.78668,000——
2021-04-29$39.45$39.45495,900——
2021-04-28$40.15$40.15623,200——
2021-04-27$40.42$40.42373,600——
2021-04-26$40.63$40.63515,600——
2021-04-23$40.37$40.37488,400——
2021-04-22$40.21$40.21585,000——
2021-04-21$40.39$40.39367,900——
2021-04-20$39.85$39.85305,700——
2021-04-19$40.36$40.36518,200——
2021-04-16$40.68$40.68495,800——
2021-04-15$40.60$40.60404,100——
2021-04-14$40.35$40.35637,600——
2021-04-13$40.50$40.50532,800——
2021-04-12$40.39$40.39679,200——
2021-04-09$40.20$40.20512,400——
2021-04-08$39.91$39.91470,900——
2021-04-07$38.77$38.77458,000——
2021-04-06$39.38$39.38439,300——
2021-04-05$39.29$39.29606,900——
2021-04-01$38.81$38.81499,400——
2021-03-31$38.05$38.05853,400——
2021-03-30$37.99$37.99669,400——
2021-03-29$37.45$37.45521,600——
2021-03-26$38.21$38.21723,100——
2021-03-25$37.46$37.46623,000——
2021-03-24$37.03$37.03492,800——
2021-03-23$37.20$37.20519,800——
2021-03-22$38.79$38.79419,500——
2021-03-19$39.34$39.341,543,400——
2021-03-18$39.23$39.23506,800——
2021-03-17$39.60$39.60651,800——
2021-03-16$39.96$39.96322,300——
2021-03-15$40.48$40.48518,600——
2021-03-12$40.69$40.69435,900——
2021-03-11$40.68$40.68496,100——
2021-03-10$39.68$39.68498,100——
2021-03-09$39.56$39.56660,700——
2021-03-08$38.76$38.76590,800——
2021-03-05$38.29$38.29617,500——
2021-03-04$36.86$36.86645,100——
2021-03-03$37.66$37.66501,000——
2021-03-02$38.50$38.501,618,400——
2021-03-01$39.36$39.36646,800——
2021-02-26$38.26$38.261,247,000——
2021-02-25$37.62$37.621,316,900——
2021-02-24$41.43$41.43578,800——
2021-02-23$41.46$41.46584,700——
2021-02-22$42.25$42.25483,300——
2021-02-19$42.43$42.43482,200——
2021-02-18$42.65$42.65396,100——
2021-02-17$43.10$43.10738,900——
2021-02-16$41.35$41.35446,200——
2021-02-12$41.32$41.32515,900——
2021-02-11$41.21$41.21609,600——
2021-02-10$41.18$41.18330,200——
2021-02-09$41.46$41.46328,700——
2021-02-08$41.01$41.01675,900——
2021-02-05$40.53$40.53357,500——
2021-02-04$40.25$40.25635,100——
2021-02-03$39.64$39.64456,500——
2021-02-02$39.87$39.87653,200——
2021-02-01$39.59$39.59579,000——
2021-01-29$38.39$38.39692,100——
2021-01-28$38.77$38.77577,500——
2021-01-27$38.01$38.01796,700——
2021-01-26$39.33$39.33383,400——
2021-01-25$39.52$39.52498,800——
2021-01-22$40.30$40.30716,700——
2021-01-21$40.50$40.501,525,800——
2021-01-20$38.63$38.63523,600——
2021-01-19$38.30$38.30407,100——
2021-01-15$38.45$38.45462,200——
2021-01-14$38.22$38.22447,900——
2021-01-13$38.50$38.50466,700——
2021-01-12$39.00$39.00501,800——
2021-01-11$38.61$38.61437,700——
2021-01-08$39.21$39.21858,600——
2021-01-07$39.14$39.14651,900——
2021-01-06$38.63$38.631,109,400——
2021-01-05$38.00$38.00834,700——
2021-01-04$37.88$37.88647,700——