On June 2, Fluence Energy rose 5.19% in after-hours trading, trading at $28.56/share, with trading volume of $9.52 million. The stock extended gains following a major partnership announcement and a sharp intraday rally of over 32% earlier in the session.

On the news front, Siemens announced a collaboration with NVIDIA and Fluence Energy to develop a reference architecture for NVIDIA's DSX Vera Rubin AI data center platform, providing a complete electrical, power, and controls system for hyperscalers, colocation providers, and cloud infrastructure operators. The solution is built on repeatable, scalable electrical building blocks aligned with NVIDIA DSX Vera Rubin deployment units, supporting initial deployments of tens of megawatts and scaling to hundreds of megawatts. Fluence's battery energy storage provides flexibility and resilience for AI factories operating in power-constrained environments.

The partnership further extends the company's recovery momentum after prior selling pressure — triggered by a 20-million-share secondary offering and institutional stake reductions — was absorbed, while FY2026 year-to-date new orders of approximately $2 billion, doubling year-over-year, provided fundamental support.

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