Zscaler is trading 4.87% higher at $196.83 on September 28, with no company-specific catalyst identified for the gain. - The stock is rebounding after its sharp September 25 decline, which followed CRO Mike Rich’s planned departure and Ross Tackett’s appointment; reports linked the leadership change to investor concerns. - Broader markets are under pressure amid rising oil prices and Treasury yields after Iran’s proposal was rejected, a backdrop that does not explain Zscaler’s rise.