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Side-by-side financial comparison of ACI WORLDWIDE, INC. (ACIW) and FIREFLY NEUROSCIENCE, INC. (AIFF). Click either name above to swap in a different company.
ACI WORLDWIDE, INC. is the larger business by last-quarter revenue ($481.6M vs $412.0K, roughly 1168.9× FIREFLY NEUROSCIENCE, INC.). ACI WORLDWIDE, INC. runs the higher net margin — 13.4% vs -601.9%, a 615.3% gap on every dollar of revenue. On growth, FIREFLY NEUROSCIENCE, INC. posted the faster year-over-year revenue change (677.4% vs 6.3%). Over the past eight quarters, FIREFLY NEUROSCIENCE, INC.'s revenue compounded faster (485.9% CAGR vs 23.4%).
ACI Worldwide is a digital payments software company headquartered in Elkhorn, Nebraska, that processes billions of transactions daily equating to trillions of U.S. dollars for customers in 94 countries. Banks, financial institutions, merchants, billers, acquirers, issuers, and other third-party payment service providers use its intelligent solutions to deploy secure payment rails across all channels.
Firefly Neuroscience Inc. is a clinical-stage biotechnology firm focused on developing non-invasive neuromodulation therapies for neuropsychiatric and neurodegenerative disorders. Its lead products target conditions including major depressive disorder and cognitive impairment, with core operations and initial market focus in North America.
ACIW vs AIFF — Head-to-Head
Income Statement — Q4 2025 vs Q4 2025
| Metric | | |
|---|---|---|
| Revenue | $481.6M | $412.0K |
| Net Profit | $64.3M | $-2.5M |
| Gross Margin | 53.0% | — |
| Operating Margin | 22.6% | -607.0% |
| Net Margin | 13.4% | -601.9% |
| Revenue YoY | 6.3% | 677.4% |
| Net Profit YoY | -34.7% | 34.5% |
| EPS (diluted) | $0.61 | — |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $481.6M | $412.0K | ||
| Q3 25 | $482.4M | $388.0K | ||
| Q2 25 | $401.3M | $299.0K | ||
| Q1 25 | $394.6M | $43.0K | ||
| Q4 24 | $453.0M | $53.0K | ||
| Q3 24 | $451.8M | $33.0K | ||
| Q2 24 | $373.5M | $10.0K | ||
| Q1 24 | $316.0M | $12.0K |
| Q4 25 | $64.3M | $-2.5M | ||
| Q3 25 | $91.3M | $-2.6M | ||
| Q2 25 | $12.2M | $-1.8M | ||
| Q1 25 | $58.9M | $-12.9M | ||
| Q4 24 | $98.6M | $-3.8M | ||
| Q3 24 | $81.4M | $-4.3M | ||
| Q2 24 | $30.9M | $-1.3M | ||
| Q1 24 | $-7.8M | $-1.1M |
| Q4 25 | 53.0% | — | ||
| Q3 25 | 53.7% | 37.6% | ||
| Q2 25 | 41.5% | 91.6% | ||
| Q1 25 | 45.9% | — | ||
| Q4 24 | 55.8% | -1196.7% | ||
| Q3 24 | 56.3% | 100.0% | ||
| Q2 24 | 45.6% | 100.0% | ||
| Q1 24 | 39.5% | — |
| Q4 25 | 22.6% | -607.0% | ||
| Q3 25 | 26.5% | -684.5% | ||
| Q2 25 | 8.7% | -546.5% | ||
| Q1 25 | 14.8% | -4802.3% | ||
| Q4 24 | 27.0% | -6483.0% | ||
| Q3 24 | 27.1% | -12933.3% | ||
| Q2 24 | 14.4% | -12590.0% | ||
| Q1 24 | 3.0% | -9091.7% |
| Q4 25 | 13.4% | -601.9% | ||
| Q3 25 | 18.9% | -680.2% | ||
| Q2 25 | 3.0% | -613.0% | ||
| Q1 25 | 14.9% | -30069.8% | ||
| Q4 24 | 21.8% | -7141.5% | ||
| Q3 24 | 18.0% | -12997.0% | ||
| Q2 24 | 8.3% | -12640.0% | ||
| Q1 24 | -2.5% | -9350.0% |
| Q4 25 | $0.61 | — | ||
| Q3 25 | $0.88 | $-0.20 | ||
| Q2 25 | $0.12 | — | ||
| Q1 25 | $0.55 | — | ||
| Q4 24 | $0.92 | — | ||
| Q3 24 | $0.77 | $-0.61 | ||
| Q2 24 | $0.29 | $-0.58 | ||
| Q1 24 | $-0.07 | — |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $196.5M | — |
| Total DebtLower is stronger | $817.6M | — |
| Stockholders' EquityBook value | $1.5B | $7.6M |
| Total Assets | $3.1B | $10.5M |
| Debt / EquityLower = less leverage | 0.54× | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $196.5M | — | ||
| Q3 25 | $199.3M | — | ||
| Q2 25 | $189.7M | — | ||
| Q1 25 | $230.1M | — | ||
| Q4 24 | $216.4M | — | ||
| Q3 24 | $177.9M | — | ||
| Q2 24 | $157.0M | $244.1K | ||
| Q1 24 | $183.4M | $563.3K |
| Q4 25 | $817.6M | — | ||
| Q3 25 | $867.8M | — | ||
| Q2 25 | $898.0M | — | ||
| Q1 25 | $845.9M | — | ||
| Q4 24 | $924.6M | — | ||
| Q3 24 | $994.3M | — | ||
| Q2 24 | $1.0B | — | ||
| Q1 24 | $1.0B | — |
| Q4 25 | $1.5B | $7.6M | ||
| Q3 25 | $1.5B | $9.7M | ||
| Q2 25 | $1.4B | $12.1M | ||
| Q1 25 | $1.5B | $5.2M | ||
| Q4 24 | $1.4B | $-375.0K | ||
| Q3 24 | $1.3B | $-2.8M | ||
| Q2 24 | $1.2B | $-1.2M | ||
| Q1 24 | $1.3B | $-9.0K |
| Q4 25 | $3.1B | $10.5M | ||
| Q3 25 | $3.2B | $12.4M | ||
| Q2 25 | $3.1B | $14.9M | ||
| Q1 25 | $3.2B | $12.4M | ||
| Q4 24 | $3.0B | $4.6M | ||
| Q3 24 | $3.1B | $5.3M | ||
| Q2 24 | $3.4B | $3.3M | ||
| Q1 24 | $3.3B | $3.8M |
| Q4 25 | 0.54× | — | ||
| Q3 25 | 0.59× | — | ||
| Q2 25 | 0.64× | — | ||
| Q1 25 | 0.57× | — | ||
| Q4 24 | 0.65× | — | ||
| Q3 24 | 0.75× | — | ||
| Q2 24 | 0.82× | — | ||
| Q1 24 | 0.81× | — |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $121.8M | $-1.8M |
| Free Cash FlowOCF − Capex | $116.6M | — |
| FCF MarginFCF / Revenue | 24.2% | — |
| Capex IntensityCapex / Revenue | 1.1% | — |
| Cash ConversionOCF / Net Profit | 1.89× | — |
| TTM Free Cash FlowTrailing 4 quarters | $309.9M | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $121.8M | $-1.8M | ||
| Q3 25 | $73.0M | $-1.5M | ||
| Q2 25 | $49.8M | $-2.4M | ||
| Q1 25 | $78.2M | $-2.5M | ||
| Q4 24 | $126.5M | $-1.2M | ||
| Q3 24 | $54.0M | $-2.5M | ||
| Q2 24 | $55.0M | $-1.1M | ||
| Q1 24 | $123.2M | $-1.3M |
| Q4 25 | $116.6M | — | ||
| Q3 25 | $69.6M | — | ||
| Q2 25 | $47.6M | — | ||
| Q1 25 | $76.1M | — | ||
| Q4 24 | $119.5M | — | ||
| Q3 24 | $50.5M | — | ||
| Q2 24 | $53.3M | — | ||
| Q1 24 | $120.0M | — |
| Q4 25 | 24.2% | — | ||
| Q3 25 | 14.4% | — | ||
| Q2 25 | 11.9% | — | ||
| Q1 25 | 19.3% | — | ||
| Q4 24 | 26.4% | — | ||
| Q3 24 | 11.2% | — | ||
| Q2 24 | 14.3% | — | ||
| Q1 24 | 38.0% | — |
| Q4 25 | 1.1% | — | ||
| Q3 25 | 0.7% | — | ||
| Q2 25 | 0.5% | — | ||
| Q1 25 | 0.5% | — | ||
| Q4 24 | 1.5% | — | ||
| Q3 24 | 0.8% | — | ||
| Q2 24 | 0.5% | — | ||
| Q1 24 | 1.0% | — |
| Q4 25 | 1.89× | — | ||
| Q3 25 | 0.80× | — | ||
| Q2 25 | 4.08× | — | ||
| Q1 25 | 1.33× | — | ||
| Q4 24 | 1.28× | — | ||
| Q3 24 | 0.66× | — | ||
| Q2 24 | 1.78× | — | ||
| Q1 24 | — | — |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
ACIW
| Issuing And Acquiring | $183.7M | 38% |
| License | $158.3M | 33% |
| Maintenance | $50.8M | 11% |
| Software And Platform Service | $49.6M | 10% |
| Merchant Payments | $42.4M | 9% |
AIFF
Segment breakdown not available.
