Energy Department clears Oklo's Groves-1 reactor for unrestricted operations

DOE clears the first reactor

On November 11 the Department of Energy cleared the final operations hold point on Oklo's Groves-1 isotope test reactor↗, allowing research, demonstration and training runs ¹. It is the first reactor the $5.1 billion fast-fission developer has cleared to operate ¹. The stock rose 3.07% in premarket trading to $25.86. ¹

Five weeks of beats

The clearance caps a five-week run of news. October 13: Oklo▼−4.60% — Oklo, down 4.60 percent today announced its isotope plant with no buyer and no disclosed price (The Inference reported↗ it then) ². November 6: a third-quarter loss of $0.22 a share beat the $0.27 forecast ². November 9: Craig-Hallum cut its price target to $27 from $53. ²

The regulator says yes, the cash math says maybe not

Oklo held $3.13 billion of cash and securities at September 30, up from $3.0 billion at June 30, but the gain came entirely from stock sales, $2.3 billion across the first nine months of 2026 ². Analysts project roughly $6.3 billion of free cash flow consumed between 2026 and 2030↗, about twice the cash on hand ². The company has guided $400 million to $500 million of plant spending this year against consensus 2028 revenue of $39.2 million, and still has not disclosed what its first Aurora reactor in Idaho costs to build. ²

Targets run from $27 to $90 on the same cash

H.C. Wainwright holds a $90 target, arguing a power agreement such as the potential Meta deal for its Ohio campus would change the funding calculus ^{1 2}. Craig-Hallum's $27 sits 4% above the price ^{1 2}. The 25-analyst mean of $55.57 leans bullish even as the consensus 2027 loss estimate widened to $1.13 a share from $0.96 in 90 days. ^{1 2}

The Idaho cost and a signed contract decide it

Two figures determine which target is right, and the company has produced neither: the Idaho construction cost, or a binding customer contract. The next scheduled reading is the annual report in March. ²