ACI Worldwide (ACIW) vs Tenable (TENB)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Tenable (TENB) has outperformed ACI Worldwide (ACIW) over the past year, gaining 30.5% versus a loss of 3.4%. Over five years, ACIW leads with a +63.7% price change compared with -23.3% for TENB. ACI Worldwide is the larger company by market cap ($5.16 billion vs $4.30 billion), about 1.2 times the size, while Tenable is growing revenue faster (+11.0% vs +10.4%).
On valuation, ACI Worldwide trades at a lower forward P/E (13.1x vs 17.9x for Tenable). ACI Worldwide converts more of its revenue into profit, with a net margin of 12.9% versus -3.6%.
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 | TENB |
|---|---|---|
| Share price | $51.07 | $39.01 |
| Market cap | $5.16B | $4.30B |
| 1-day change | +0.83% | +0.18% |
| YTD return | +6.82% | +65.79% |
| 1-year return | -3.44% | +30.47% |
| 5-year return | +63.69% | -23.28% |
| P/E ratio (TTM) | 23.32 | 650.17 |
| Forward P/E | 13.06 | 17.89 |
| EPS (TTM) | $2.19 | $0.06 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $1.76B | $999.40M |
| Revenue growth (YoY) | +10.38% | +11.04% |
| Net income (latest FY) | $226.66M | $-36.12M |
| Gross margin | 48.99% | 78.09% |
| Operating margin | 18.75% | -0.92% |
| Net margin | 12.88% | -3.61% |
| 52-week high | $61.08 | $43.67 |
| 52-week low | $38.05 | $15.73 |
| Distance from 52-week high | -16.39% | -10.67% |
| Analyst consensus | none | hold |
| Avg. price target upside | +31.84% | -9.38% |
| Average volume | 903.15K | 4.06M |
| Shares outstanding | 100.96M | 110.14M |
| Employees | 2,930 | 1,995 |
| Sector | Technology | Technology |
| Industry | Computer Software: Prepackaged Software | Computer Software: Prepackaged Software |
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
- TENB has outperformed ACIW by 33.9 percentage points over the past year.
- Tenable trades at a higher earnings multiple (650.2x vs 23.3x trailing P/E).
- ACI Worldwide is more profitable, keeping 12.9 cents of every revenue dollar as net income versus -3.6 cents for Tenable.
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 Tenable
TENB stock →Tenable Holdings, Inc. provides cyber exposure management solutions in the Americas, Europe, the Middle East, Africa, the Asia Pacific, and Japan.
Technology · Computer Software: Prepackaged Software · 1,995 employees
ACIW vs TENB FAQ
Which is bigger, ACI Worldwide or Tenable?
ACI Worldwide (ACIW) is larger, with a market capitalization of $5.16B compared with $4.30B for Tenable (TENB).
Which stock has performed better over the past year, ACIW or TENB?
TENB returned +30.47% over the past 12 months, compared with -3.44% for ACIW (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ACIW or TENB?
ACIW has the lower trailing P/E at 23.3, versus 650.2 for TENB. 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 Tenable in the same industry?
Yes. Both are classified in the Computer Software: Prepackaged Software industry within the Technology sector.