ACI Worldwide Inc. (ACIW)
Showing Closing Date Range from Apr 22 to Oct 19, 2026 compared to Oct 23, 2025 to Apr 21, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:aciworldwide.com/investor
Current Period Close
$52.80
Apr 22, 2026 - Oct 19, 2026
Previous Period Close
$44.22
Oct 23, 2025 - Apr 21, 2026
Net Comparison Delta
+$8.58 (+19.40%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(123 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 16, 2026 | $52.80 | Apr 21, 2026 | $44.22 | +19.40% |
| Oct 15, 2026 | $52.55 | Apr 20, 2026 | $45.15 | +16.39% |
| Oct 14, 2026 | $51.07 | Apr 17, 2026 | $44.47 | +14.84% |
| Oct 13, 2026 | $51.20 | Apr 16, 2026 | $42.80 | +19.63% |
| Oct 12, 2026 | $51.06 | Apr 15, 2026 | $42.48 | +20.20% |
| Oct 09, 2026 | $50.87 | Apr 14, 2026 | $41.45 | +22.73% |
| Oct 08, 2026 | $51.07 | Apr 13, 2026 | $41.24 | +23.84% |
| Oct 07, 2026 | $50.65 | Apr 10, 2026 | $39.89 | +26.97% |
| Oct 06, 2026 | $50.71 | Apr 09, 2026 | $40.75 | +24.44% |
| Oct 05, 2026 | $51.22 | Apr 08, 2026 | $41.38 | +23.78% |
| Oct 02, 2026 | $50.15 | Apr 07, 2026 | $40.78 | +22.98% |
| Oct 01, 2026 | $49.43 | Apr 06, 2026 | $41.13 | +20.18% |
| Sep 30, 2026 | $48.88 | Apr 02, 2026 | $41.33 | +18.27% |
| Sep 29, 2026 | $48.59 | Apr 01, 2026 | $40.96 | +18.63% |
| Sep 28, 2026 | $49.00 | Mar 31, 2026 | $41.01 | +19.48% |
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