Trader consensus on B200 GPU rental prices by end of October reflects persistent supply constraints against resilient AI demand, with the 30.5% market-implied odds on $6.50+ highlighting the possibility of sustained elevation. Recent 2026 data shows median on-demand rates clustered around $5–$6.25 per hour across providers, with neocloud spot floors near $3.50 and hyperscaler premiums exceeding $14, driven by a multi-million-unit Blackwell backlog, TSMC yield limits, and HBM3e cost pass-through. Key differentiators include the pace of new capacity arrivals, frontier model training and agentic inference workloads that favor on-demand utilization, and any shifts in hyperscaler capex or energy constraints. The broad outcome distribution underscores uncertainty around whether incremental supply will ease pricing or if demand from large language model deployments keeps rates firm through fall.