Key Takeaways MP Materials posted a negative $66.8M in operating cash flow in the first half of 2025.Weak prices, high costs and inventory buildup have weighed on MP's cash generation.A DoD price floor deal and rising NdPr volumes may help stabilize MP's future cash flow.MP Materials Corp. (MP) reported negative operating cash flow from operations of$66.8 million in the first half of 2025 against an outflow of $10.3 million in the same period last year. The sharp decline was due to the recognition of defer ...