** U.S. chipmakers' shares rise in early trading after Oracle ORCL.N says it expects booked revenue at its cloud infrastructure business to exceed half a trillion dollars
** ORCL shares jumped 34.7% to a record high of $325.90, putting the stock on track for its biggest one-day gain since 1992.
** Nvidia NVDA.O rises 4.2%, Advanced Micro Devices AMD.O up 4.2%, Broadcom AVGO.O climbs 7.1% to record high
** Analysts at BofA Global Research said that while the profitability of AI workloads remains debated, it is clear Oracle is capturing share in the large and fast-growing market for AI infrastructure. They estimate the AI applications industry will reach $155 billion by 2030.
** "Oracle shares soared amid optimism about AI-related revenue, sending a strong message to the broader market that the tech revolution is still red-hot" - Russ Mould, investment director at AJ Bell
** Philadelphia Semiconductor index .SOX up 16.8% YTD