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.

View year

Historical Stock Price — 2018

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2018-12-31$27.67$27.67592,800
2018-12-28$27.25$27.25846,300
2018-12-27$27.48$27.48916,500
2018-12-26$26.93$26.93666,100
2018-12-24$25.32$25.32367,900
2018-12-21$26.23$26.232,358,000
2018-12-20$26.55$26.55795,600
2018-12-19$27.04$27.04658,100
2018-12-18$26.96$26.96833,900
2018-12-17$26.70$26.70837,600
2018-12-14$27.47$27.47339,200
2018-12-13$27.89$27.89594,800
2018-12-12$28.06$28.06450,300
2018-12-11$27.47$27.47601,700
2018-12-10$27.19$27.19576,700
2018-12-07$27.16$27.16713,900
2018-12-06$28.33$28.33713,500
2018-12-04$28.25$28.25759,300
2018-12-03$29.44$29.44640,800
2018-11-30$28.88$28.88925,400
2018-11-29$28.99$28.99502,300
2018-11-28$29.32$29.32897,200
2018-11-27$28.08$28.08453,500
2018-11-26$28.77$28.77738,500
2018-11-23$28.14$28.14173,700
2018-11-21$28.43$28.43920,700
2018-11-20$27.90$27.90982,500
2018-11-19$27.98$27.98752,600
2018-11-16$29.52$29.52516,900
2018-11-15$29.23$29.23680,300
2018-11-14$28.51$28.51594,400
2018-11-13$28.80$28.80703,800
2018-11-12$29.13$29.13967,100
2018-11-09$30.12$30.121,468,300
2018-11-08$29.00$29.003,101,300
2018-11-07$26.01$26.01893,300
2018-11-06$25.39$25.39416,600
2018-11-05$25.18$25.18459,400
2018-11-02$25.55$25.55651,400
2018-11-01$25.43$25.43667,200
2018-10-31$25.09$25.09617,000
2018-10-30$24.69$24.69504,800
2018-10-29$24.40$24.40499,700
2018-10-26$24.85$24.85604,500
2018-10-25$25.33$25.33599,200
2018-10-24$24.89$24.891,035,700
2018-10-23$25.81$25.81597,100
2018-10-22$26.28$26.28377,800
2018-10-19$25.94$25.94445,700
2018-10-18$26.29$26.29345,700
2018-10-17$26.81$26.81424,900
2018-10-16$26.88$26.88531,600
2018-10-15$25.74$25.74457,900
2018-10-12$25.50$25.50752,600
2018-10-11$25.08$25.08821,800
2018-10-10$25.24$25.24609,600
2018-10-09$26.43$26.43613,300
2018-10-08$26.65$26.65903,600
2018-10-05$26.82$26.82733,600
2018-10-04$26.68$26.68424,400
2018-10-03$27.25$27.25440,600
2018-10-02$26.79$26.79352,800
2018-10-01$27.26$27.26438,000
2018-09-28$28.14$28.14591,800
2018-09-27$28.19$28.19458,900
2018-09-26$28.23$28.23402,500
2018-09-25$28.63$28.63267,700
2018-09-24$28.38$28.38227,500
2018-09-21$28.35$28.35810,100
2018-09-20$28.51$28.51308,900
2018-09-19$28.01$28.01457,200
2018-09-18$28.25$28.25583,200
2018-09-17$27.87$27.87420,700
2018-09-14$28.93$28.93401,300
2018-09-13$28.42$28.42241,200
2018-09-12$28.59$28.59492,900
2018-09-11$28.17$28.17207,200
2018-09-10$28.10$28.10365,600
2018-09-07$28.29$28.29371,700
2018-09-06$28.09$28.09296,800
2018-09-05$27.87$27.87304,400
2018-09-04$28.36$28.36374,100
2018-08-31$28.41$28.41389,700
2018-08-30$28.37$28.37206,800
2018-08-29$28.54$28.54326,600
2018-08-28$28.02$28.02290,500
2018-08-27$28.14$28.14273,900
2018-08-24$28.46$28.46405,700
2018-08-23$27.96$27.96250,800
2018-08-22$27.98$27.98247,000
2018-08-21$27.53$27.53303,900
2018-08-20$27.30$27.30490,900
2018-08-17$26.95$26.95479,200
2018-08-16$26.98$26.98319,700
2018-08-15$26.98$26.98342,800
2018-08-14$27.22$27.22762,100
2018-08-13$27.22$27.22306,800
2018-08-10$27.16$27.16371,500
2018-08-09$27.36$27.36322,500
2018-08-08$27.50$27.50298,600
2018-08-07$27.43$27.43446,700
2018-08-06$27.14$27.141,232,700
2018-08-03$27.00$27.00566,500
2018-08-02$26.55$26.551,202,100
2018-08-01$26.46$26.46850,800
2018-07-31$25.84$25.84776,600
2018-07-30$25.77$25.77445,000
2018-07-27$26.14$26.14611,300
2018-07-26$26.46$26.46568,300
2018-07-25$26.31$26.31425,700
2018-07-24$25.91$25.91297,800
2018-07-23$26.46$26.46443,000
2018-07-20$26.56$26.56311,500
2018-07-19$26.79$26.79577,600
2018-07-18$26.42$26.42264,200
2018-07-17$26.40$26.40250,300
2018-07-16$26.24$26.24300,100
2018-07-13$26.30$26.30315,700
2018-07-12$26.47$26.47321,400
2018-07-11$26.07$26.07242,000
2018-07-10$26.20$26.20318,400
2018-07-09$26.29$26.29291,400
2018-07-06$26.02$26.02287,800
2018-07-05$25.62$25.62499,700
2018-07-03$25.15$25.15316,000
2018-07-02$25.03$25.03300,800
2018-06-29$24.67$24.67583,900
2018-06-28$24.67$24.67486,800
2018-06-27$24.25$24.25687,400
2018-06-26$25.17$25.17567,500
2018-06-25$25.20$25.20431,200
2018-06-22$26.01$26.01867,400
2018-06-21$26.32$26.32494,200
2018-06-20$26.83$26.83551,700
2018-06-19$26.84$26.84585,600
2018-06-18$26.57$26.57660,900
2018-06-15$26.14$26.141,172,400
2018-06-14$25.79$25.79729,300
2018-06-13$25.66$25.66588,300
2018-06-12$25.72$25.72554,500
2018-06-11$25.53$25.53373,900
2018-06-08$25.23$25.23855,200
2018-06-07$24.99$24.99533,200
2018-06-06$25.01$25.01725,800
2018-06-05$24.98$24.98380,800
2018-06-04$24.87$24.87468,800
2018-06-01$24.40$24.40712,900
2018-05-31$24.15$24.15632,800
2018-05-30$24.20$24.20561,100
2018-05-29$23.84$23.84488,500
2018-05-25$23.93$23.93380,200
2018-05-24$23.90$23.90368,700
2018-05-23$23.87$23.87394,700
2018-05-22$23.88$23.88612,700
2018-05-21$24.02$24.02913,200
2018-05-18$23.89$23.89994,000
2018-05-17$23.85$23.851,154,000
2018-05-16$23.26$23.261,140,600
2018-05-15$22.56$22.561,059,300
2018-05-14$22.43$22.43851,700
2018-05-11$22.55$22.551,129,200
2018-05-10$23.34$23.341,501,400
2018-05-09$23.89$23.891,174,700
2018-05-08$23.50$23.50522,400
2018-05-07$23.46$23.46490,600
2018-05-04$23.23$23.23558,100
2018-05-03$23.12$23.12506,100
2018-05-02$23.03$23.03324,800
2018-05-01$23.16$23.16926,900
2018-04-30$23.25$23.25533,000
2018-04-27$23.53$23.53493,900
2018-04-26$23.85$23.85672,800
2018-04-25$24.03$24.03544,900
2018-04-24$24.23$24.23292,600
2018-04-23$24.42$24.42333,300
2018-04-20$24.49$24.49243,800
2018-04-19$24.83$24.83233,300
2018-04-18$24.93$24.93261,800
2018-04-17$25.00$25.00320,900
2018-04-16$24.52$24.52251,500
2018-04-13$24.24$24.24193,400
2018-04-12$24.35$24.35253,100
2018-04-11$24.36$24.36294,800
2018-04-10$24.33$24.33685,600
2018-04-09$23.89$23.89439,700
2018-04-06$23.88$23.88627,400
2018-04-05$24.15$24.15520,000
2018-04-04$23.81$23.81828,900
2018-04-03$23.79$23.79603,600
2018-04-02$23.21$23.21781,200
2018-03-29$23.72$23.72995,200
2018-03-28$23.53$23.53788,900
2018-03-27$23.79$23.79402,000
2018-03-26$24.65$24.65369,700
2018-03-23$24.13$24.13515,100
2018-03-22$25.06$25.06450,100
2018-03-21$25.55$25.55206,400
2018-03-20$25.64$25.64374,200
2018-03-19$25.79$25.79599,000
2018-03-16$25.97$25.971,310,800
2018-03-15$26.14$26.14478,600
2018-03-14$26.00$26.00478,800
2018-03-13$26.01$26.01615,900
2018-03-12$26.03$26.03484,400
2018-03-09$26.02$26.02772,700
2018-03-08$25.53$25.53551,000
2018-03-07$25.64$25.64926,300
2018-03-06$25.42$25.421,382,800
2018-03-05$24.49$24.491,530,600
2018-03-02$23.98$23.981,015,700
2018-03-01$23.16$23.16863,500
2018-02-28$23.65$23.65880,700
2018-02-27$24.24$24.24861,000
2018-02-26$24.86$24.86941,000
2018-02-23$24.91$24.91937,600
2018-02-22$23.68$23.681,389,300
2018-02-21$22.66$22.66751,000
2018-02-20$23.36$23.36410,400
2018-02-16$23.34$23.34568,200
2018-02-15$23.05$23.05602,600
2018-02-14$22.29$22.29721,100
2018-02-13$21.67$21.67779,000
2018-02-12$21.55$21.55436,600
2018-02-09$21.14$21.14968,700
2018-02-08$20.71$20.71494,800
2018-02-07$21.54$21.54609,500
2018-02-06$21.85$21.85916,700
2018-02-05$21.74$21.74815,600
2018-02-02$23.06$23.06474,700
2018-02-01$23.76$23.76612,900
2018-01-31$23.44$23.44494,600
2018-01-30$23.06$23.06524,400
2018-01-29$23.12$23.12475,700
2018-01-26$23.13$23.13279,600
2018-01-25$22.96$22.96511,600
2018-01-24$22.97$22.97451,600
2018-01-23$22.96$22.96382,500
2018-01-22$23.04$23.04516,000
2018-01-19$23.21$23.21607,200
2018-01-18$22.70$22.70636,900
2018-01-17$22.77$22.77625,400
2018-01-16$22.68$22.68644,600
2018-01-12$23.40$23.40505,500
2018-01-11$23.50$23.50566,400
2018-01-10$22.88$22.88424,100
2018-01-09$22.92$22.92623,200
2018-01-08$23.04$23.04889,100
2018-01-05$22.80$22.80485,000
2018-01-04$22.73$22.73563,300
2018-01-03$22.51$22.51491,000
2018-01-02$22.69$22.69585,600