When Zscaler's stock price falls, it is often related to investor expectations rather than a fundamental flaw in the company's performance. Even when Zscaler reports strong quarterly results—beating revenue and earnings estimates—a stock dip can occur if the company's forward-looking guidance (forecasts for metrics like Annual Recurring Revenue or future billings) is solid but does not meet the extremely high growth predictions set by some demanding analysts and investors. This "good but not good enough" sentiment can cause a minor sell-off.