Recent supply constraints on the NVIDIA RTX 5090, a Blackwell GPU with 32 GB GDDR7, have sustained elevated rental rates across major marketplaces. Current medians hover near $0.65–$0.72 per GPU-hour on platforms such as Vast.ai and GPUniq, with the middle half of listings typically falling in the $0.60–$0.87 range as of mid-October 2026. Strong demand for inference and smaller training workloads, combined with NVIDIA’s acknowledgment of ongoing supply-chain limits and chip reallocation toward pro lines, has prevented meaningful downward pressure. Limited new consumer inventory and steady utilization above 60 percent reinforce trader consensus that rates will close October above $0.60. No major release or regulatory shift is expected before month-end to alter this positioning.