Branding for Nebius at the Nebius AI UK data centre, at Ark Data Centres, in Chertsey, Britain, November 6, 2025. REUTERS/Toby Melville Purchase Licensing Rights, opens new tabNov 11 (Reuters) - Nebius Group (NBIS.O), opens new tab has signed a deal worth about $3 billion with Meta to provide the Facebook owner with AI infrastructure over a five-year period, the company said on Tuesday, after it reported a more than fourfold rise in third-quarter revenue.The company's shares seesawed in volatile...