Palo Alto Networks has the tenth fastest-growing cybersecurity stock over the past year, with the Santa Clara, Calif.-based platform security vendor's stock price increasing by 46 percent to $342.95 per share. Customers are flocking to all of Palo Alto Networks' new features and capabilities, with sales in the company's 2021 fiscal year, which ends July 31, expected to surge nearly 21 percent to $4.12 billion.