Palo Alto Networks’ stock tanks 21% as latest push comes with growing pains

Palo Alto Networks Inc. shares tumbled in Tuesday’s extended session after the cybersecurity company came up short with its forecasts for the current quarter and trimmed its full-year revenue outlook. The company models fiscal third-quarter revenue of $1.95 billion to $1.98 billion along with $2.30 billion to $2.35 billion in billings, a metric that takes into account deferred revenue. The FactSet consensus was for $2.04 billion in revenue and $2.62 billion in billings. Palo Alto Networks