---
schema_version: "secwatch.filing_event.v1"
accession: "0000935036-26-000019"
form_type: "8-K"
ticker: "ACIW"
cik: "0000935036"
company_name: "ACI WORLDWIDE, INC."
filed_at: "2026-05-07T23:59:59+00:00"
generated_at: "2026-05-14T22:25:28.814497+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# ACI Worldwide Q1 revenue up 8% to $426M; raises FY 2026 revenue and EBITDA guidance

## Summary
- Revenue $426M (+8% YoY); GAAP EPS $0.37; adjusted EPS $0.61 (+20% YoY)
- Adjusted EBITDA $105M (+12% YoY); margin 38% vs 36% year ago
- Payment Software revenue $214M (+6%), Biller $212M (+10%); Real Time Payments +22%, Merchant +21%
- Raised FY 2026 revenue guidance to $1.89B-$1.92B; EBITDA to $540M-$555M
- Repurchased 1.5M shares for $65M; $391M remaining on authorization

## SEC filing metadata
- accession: 0000935036-26-000019
- form_type: 8-K
- ticker: ACIW
- cik: 0000935036
- company_name: ACI WORLDWIDE, INC.
- filed_at: 2026-05-07T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/935036/000093503626000019/0000935036-26-000019-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/935036/000093503626000019/aciw-20260507.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000935036-26-000019
- JSON: https://secwatch.observer/filing/0000935036-26-000019.json
- Plain text: https://secwatch.observer/filing/0000935036-26-000019.txt

## Key facts
- Earnings Releases
  ACI WORLDWIDE, INC. reported the three months ended March 31, 2026 results: revenue $426 million, net income $38 million, EPS $0.37. Guidance raised.
  - Period: the three months ended March 31, 2026
  - Revenue: $426 million
  - Net income: $38 million
  - EPS: $0.37
  - Guidance: raised
  - Result: reported results
  source text: ACI Worldwide Reports Strong First Quarter 2026 Results and Raises Full-Year Guidance Q1 2026 HIGHLIGHTS • Revenue of $426 million increased 8% (6% in constant currency) • GAAP net income of $38 million and adjusted EBITDA of $105 million increased 12% (8% in constant currency) • GAAP EPS of $0.37 and adjusted EPS of $0.61 increased 20% (15% in constant currency)
  evidence_url: https://www.sec.gov/Archives/edgar/data/935036/000093503626000019/0000935036-26-000019-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.