Netskope is seeking a valuation of up to $6.5 billion in its initial public offering in the United States, the cloud-based cybersecurity firm said on Monday, signaling investors' appetite for new listings. U.S. listings rebounded after an April slump sparked by tariff-driven market volatility, as signs of progress in trade negotiations and demand for fresh listings restored confidence in the market. Ticketing platform StubHub also launched a roadshow for its U.S. initial public offering on