DEEP FISSION, INC. — Form 8-K
Filed October 20, 2026 · analyzed by the 8-K Agent
8-K
▲ Likely positive
significance 72/100
What the filing says
Deep Fission, Inc. (Nasdaq: FISN) signed a binding Master Energy Purchase Agreement with Great Plains Development Authority (GPDA) on October 16, 2026, converting a December 2025 letter of intent into a definitive contract. The agreement covers an initial phase of up to 150 MW targeted for commercial operation September 30, 2028, with expansion to 2,000 MW by 2031. GPDA has no minimum purchase obligation and may assign its rights to qualifying tenants; Deep Fission receives revenue only when licensed and operating.
Why this rating
First binding commercial offtake agreement materially validates business model and de-risks market demand. At $107.3M asset base, a 25-year 2 GW commitment is strategically significant but subject to regulatory, licensing, and execution risk. Revenue timing remains 2+ years away.
Tradability signal
NO TRADE
No trade: positive news with only -1.2% moved so far — good news prices in within seconds and long-side continuation has shown no measured edge (this cell: +0.07% over 4 hrs, n=272).
Derived from this site's own measured outcomes + live price/liquidity at analysis time. An experiment, not investment advice.
Price action (we called it positive)
before filing · preread $2.84 ▲ 1.25% | at our read · unknown $2.81 | +10 min · unknown $2.81 ▲ 0.18% | +30 min · unknown $2.81 ▲ 0.18% | +1 hr · unknown $2.81 ▲ 0.18% | +4 hrs pending |
The stock had already moved -1.23% between hitting EDGAR and our read finishing — deltas above are measured from our read.
Quotes via Yahoo Finance at capture time; for filings arriving outside market hours the clock starts at the next open. Not investment advice. How accurate are our calls? →
See more from October 20, 2026.
EDGAR·FLOW summarizes public SEC EDGAR filings with automated analysis. Materiality scores and stock-impact predictions are algorithmically generated and are not investment advice. Always verify against the source filing on SEC.gov.