Revolut's valuation surged to $75 billion following a secondary share sale, allowing employees to sell up to 20% of their shares. The company's significant profit growth and ongoing frustrations with UK regulators have raised speculation about a potential IPO, possibly in New York, which could impact the London Stock Exchange.

OpenAI is reportedly in discussions for a share sale that could value the company at around $500 billion. This potential valuation marks a significant increase in the company's market worth, reflecting its growing influence and importance in the artificial intelligence sector. The move could attract substantial investment and shape the future landscape of AI development.