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Nano Nuclear Energy Slides 26.5% in December as Hype Cools on Pre‑Revenue Microreactor Play

The selloff reflects a pre-revenue developer lacking an NRC-approved reactor or a working prototype.

Overview

  • Shares fell 26.5% in December, according to S&P Global Market Intelligence data reported by Yahoo Finance.
  • Nano Nuclear Energy has reported no revenue and has not secured Nuclear Regulatory Commission approval for a reactor.
  • The company lacks a working physical model and recorded roughly $37 million in negative free cash flow over the last 12 months.
  • Shares outstanding have risen about 77% since 2024 as the company issued equity to fund operations, increasing dilution risk.
  • Despite no sales, the company’s market value sits near $1.56 billion, buoyed by sector enthusiasm tied to AI-driven power demand and lofty peer valuations such as Oklo.