ACI Worldwide (ACIW) vs WEX (WEX)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 7, 2026.
Summary
WEX (WEX) has outperformed ACI Worldwide (ACIW) over the past year, gaining 8.0% versus a loss of 3.9%. Over five years, ACIW leads with a +62.3% price change compared with -11.9% for WEX. WEX is the larger company by market cap ($5.79 billion vs $5.11 billion), about 1.1 times the size, while ACI Worldwide is growing revenue faster (+10.4% vs +1.2%).
On valuation, WEX trades at a lower forward P/E (8.0x vs 13.0x for ACI Worldwide). ACI Worldwide converts more of its revenue into profit, with a net margin of 12.9% versus 11.4%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | ACIW | WEX |
|---|---|---|
| Share price | $50.65 | $169.96 |
| Market cap | $5.11B | $5.79B |
| 1-day change | -0.12% | -0.89% |
| YTD return | +5.94% | +14.08% |
| 1-year return | -3.87% | +7.99% |
| 5-year return | +62.34% | -11.90% |
| P/E ratio (TTM) | 23.13 | 17.10 |
| Forward P/E | 13.02 | 8.02 |
| EPS (TTM) | $2.19 | $9.94 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $1.76B | $2.66B |
| Revenue growth (YoY) | +10.38% | +1.24% |
| Net income (latest FY) | $226.66M | $304.10M |
| Gross margin | 48.99% | 58.64% |
| Operating margin | 18.75% | 24.95% |
| Net margin | 12.88% | 11.43% |
| 52-week high | $61.08 | $203.99 |
| 52-week low | $38.05 | $125.29 |
| Distance from 52-week high | -17.08% | -16.68% |
| Analyst consensus | none | buy |
| Avg. price target upside | +32.93% | +14.94% |
| Average volume | 916.84K | 646.52K |
| Shares outstanding | 100.96M | 34.08M |
| Employees | 2,930 | 6,600 |
| Sector | Technology | Consumer Discretionary |
| Industry | Computer Software: Prepackaged Software | Business Services |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- WEX has outperformed ACIW by 11.9 percentage points over the past year.
- ACI Worldwide trades at a higher earnings multiple (23.1x vs 17.1x trailing P/E).
- ACI Worldwide grew revenue faster in its latest fiscal year (+10.38% vs +1.24%).
- The two companies sit in different sectors: ACI Worldwide in Technology and WEX in Consumer Discretionary.
About ACI Worldwide
ACIW stock →ACI Worldwide, Inc. develops, markets, installs, and supports software products and services for facilitating electronic payments in the United States and worldwide.
Technology · Computer Software: Prepackaged Software · 2,930 employees
About WEX
WEX stock →WEX Inc. operates a commerce platform in the United States and internationally.
Consumer Discretionary · Business Services · 6,600 employees
ACIW vs WEX FAQ
Which is bigger, ACI Worldwide or WEX?
WEX (WEX) is larger, with a market capitalization of $5.79B compared with $5.11B for ACI Worldwide (ACIW).
Which stock has performed better over the past year, ACIW or WEX?
WEX returned +7.99% over the past 12 months, compared with -3.87% for ACIW (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ACIW or WEX?
WEX has the lower trailing P/E at 17.1, versus 23.1 for ACIW. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are ACI Worldwide and WEX in the same industry?
No. ACI Worldwide is in the Technology sector, while WEX is in Consumer Discretionary.