Zscaler is trading at $225.60, down 4.27%, with no clearly verified company-specific announcement explaining the October 12 decline. - Coverage is mixed: one report says investors weigh strong results against broader concerns; other search results describe gains, not the cause of this drop. - Major indices are only modestly lower in the supplied market data, which does not establish a broad-market cause. - The pullback follows recent gains, but that timing alone does not prove why shares are down.