Zscaler (ZS) Tests Its AI Security Story On Questions Of Whether Shares Are Fully Valued

Zscaler (ZS) has become a focal point for investors after recent trading left the stock around $237.82. Its performance over the past month and past three months has sharply outpaced its 1-year total return.

Recent trading has been choppy for Zscaler, with the share price falling 4.04% in the last session and 6.79% over the past week. However, the 30-day share price return of 19.26% and 90-day gain of 57.29% point to momentum that contrasts sharply with a 1-year total shareholder return that declined 28.18%, even as the 3-year total shareholder return sits at 44.69% and the 5-year total shareholder return is lower by 29.74%.

Scan how Zscaler stacks up against other fast-moving software opportunities by reviewing our hand picked list of 18 high quality undiscovered gems in the same broader growth universe.

The rebound has pulled Zscaler close to analyst targets, while some models still point to a discount to estimated fair value. Is the market’s caution after last year’s drop giving you an opening or a warning signal?

Most Popular Narrative: 4.9% Undervalued

Against a last close of $237.82, the most followed narrative pegs Zscaler's fair value at $249.97. This frames the current pullback as a modest discount rather than a stretch.

The market still largely values Zscaler as a Zero Trust security company. I believe the more important question is whether it becomes a foundational platform for securing enterprise AI.

Fiscal 2026 results showed accelerating ARR growth, record large-customer activity, growing adoption of non-seat-based products, and early evidence that Security for AI is resonating with customers. Security for AI bookings grew more than 50% quarter-over-quarter, while 70% of those wins included Data Security products, suggesting meaningful platform expansion opportunities.

See why 36 investors see Zscaler as 5% undervalued.

Result: Fair Value of $249.97 (UNDERVALUED)

Still, Zscaler’s AI platform pitch could be knocked off course if AI security adoption stays niche or if larger vendors bundle similar tools more aggressively.

Find out about the key risks to this Zscaler narrative.

Another View: What Zscaler’s P/S Ratio Is Telling You

While the SWS DCF model sees Zscaler trading below future cash flow value, the market’s P/S yardstick paints a tougher picture. At 11.6x sales, the stock trades at roughly 3x the US Software industry average of 3.9x and above the 11.3x peer group. It also sits well above the fair ratio of 9.7x, a level the market could move toward over time. For investors, that premium raises a simple question: Is the AI security story strong enough to justify paying well over sector and fair ratio benchmarks?

See what the numbers say about this price — find out in our valuation breakdown.

Next Steps

Mixed signals on Zscaler's momentum and valuation can feel confusing at first glance, so move quickly through the numbers and pressure test the story for yourself. For a clear snapshot of both the upside and the concerns investors are weighing, review the 2 key rewards and 1 important warning sign.

Looking for more ideas beyond Zscaler?

If Zscaler has your attention but you do not want to rely on a single story, broaden your watchlist with a few targeted stock screens.

• Target potential mispricings by scanning a focused set of companies trading at a discount through the 29 high quality undervalued stocks.
• Secure your downside first by checking out a 30 resilient stocks with low risk scores that emphasizes resilient balance sheets and steadier return profiles.
• Hunt for future standouts before the crowd by running a 9 elite penny stocks with strong financials that filters for stronger financial quality in the lower price bracket.

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