ZS vs FTNT: which was the better investment?
Zscaler, Inc. against Fortinet, Inc. on real daily total-return data — every dividend reinvested, from Mar 16, 2018 to Aug 28, 2026.
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Frequently asked questions
Did ZS beat FTNT?
No — measured from Mar 16, 2018 to Aug 28, 2026 with dividends reinvested, FTNT came out ahead: $153,704 versus $55,827 from a $10,000 start. That gap compounds from a 38.2% annual return against 22.6%.
What would $10,000 in ZS be worth today?
$10,000 invested in Zscaler, Inc. (ZS) on Mar 16, 2018 would be worth about $55,827 as of Aug 28, 2026, a total return of 458.3% (22.6% per year). The same $10,000 in FTNT would be worth $153,704.
Which was riskier — ZS or FTNT?
ZS swung with an annualized volatility of 58.2% and a worst peak-to-trough drop of -76.4%; FTNT ran at 43.1% volatility with a -38.3% maximum drawdown. Risk-adjusted (Sharpe ratio), that is 0.35 for ZS vs 0.84 for FTNT.
What data is this comparison based on?
Daily adjusted closing prices covering Mar 16, 2018 through Aug 28, 2026 — the full period where both assets have price history. Adjusted prices include dividends and splits, so these are total returns. The page refreshes with new market data every day.
Can I change the dates, amounts, or add monthly investing?
Yes — the interactive tool on this page is pre-loaded with ZS vs FTNT. You can set any start and end date, change the starting amount, add monthly contributions, or build a multi-asset portfolio and compare it against any benchmark.