Tenable (TENB) vs Zscaler (ZS)
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 Zscaler (ZS) over the past year, gaining 30.5% versus a loss of 30.9%. Over five years, TENB leads with a -23.3% price change compared with -25.9% for ZS. Zscaler is the larger company by market cap ($37.64 billion vs $4.51 billion), about 8.4 times the size.
On valuation, Tenable trades at a lower forward P/E (18.8x vs 41.2x for Zscaler). Zscaler converts more of its revenue into profit, with a net margin of -1.9% 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 | TENB | ZS |
|---|---|---|
| Share price | $40.91 | $230.85 |
| Market cap | $4.51B | $37.64B |
| 1-day change | +4.87% | +6.48% |
| YTD return | +65.79% | -3.61% |
| 1-year return | +30.47% | -30.93% |
| 5-year return | -23.28% | -25.93% |
| P/E ratio (TTM) | 681.83 | — |
| Forward P/E | 18.76 | 41.21 |
| EPS (TTM) | $0.06 | $-0.39 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $999.40M | $3.35B |
| Revenue growth (YoY) | +11.04% | +25.42% |
| Net income (latest FY) | $-36.12M | $-63.18M |
| Gross margin | 78.09% | 76.80% |
| Operating margin | -0.92% | -3.98% |
| Net margin | -3.61% | -1.88% |
| 52-week high | $43.67 | $336.99 |
| 52-week low | $15.73 | $114.63 |
| Distance from 52-week high | -6.32% | -31.50% |
| Analyst consensus | hold | buy |
| Avg. price target upside | -13.59% | -1.95% |
| Average volume | 4.06M | 2.83M |
| Shares outstanding | 110.14M | 163.05M |
| Employees | 1,995 | 8,700 |
| Sector | Technology | Technology |
| Industry | Computer Software: Prepackaged Software | EDP 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
- Zscaler is about 8.4 times larger than Tenable by market value ($37.64B vs $4.51B).
- TENB has outperformed ZS by 61.4 percentage points over the past year.
- Zscaler grew revenue faster in its latest fiscal year (+25.42% vs +11.04%).
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
About Zscaler
ZS stock →Zscaler, Inc. operates as a cloud security company worldwide.
Technology · EDP Services · 8,700 employees
TENB vs ZS FAQ
Which is bigger, Tenable or Zscaler?
Zscaler (ZS) is larger, with a market capitalization of $37.64B compared with $4.51B for Tenable (TENB).
Which stock has performed better over the past year, TENB or ZS?
TENB returned +30.47% over the past 12 months, compared with -30.93% for ZS (price return, excluding dividends). Past performance does not predict future results.
Are Tenable and Zscaler in the same industry?
Both are in the Technology sector, but in different industries: Computer Software: Prepackaged Software for Tenable and EDP Services for Zscaler.