Deep Fission drops after Iceberg Research short report (FISN:NASDAQ)

DEEP FISSION, INC. (FISN) filed an SEC Form 8-K — Regulation FD Disclosure. Exhibit 99.1 Deep Fission Signs Binding 25-Year Master Energy Purchase Agreement for Planned Commercial Project Agreement with Great Plains Development Authority covers an initial phase of up to 150 MW, targeted for September 2028 and up to 2GW by 2031 Management to host business

Deep Fission (FISN) rose about 8.1% after it said the U.S. Department of Energy approved its Nuclear Safety Design Agreement for its underground gravity SMR. The company said the approval supports advancing its reactor design. The move is tied to DOE safety-design clearance, which investors may view as progress toward development.

Deep Fission Inc., which is developing an underground Gravity Reactor in Parsons, Kansas, plans an IPO of 2.5 million shares to raise more than $40 million, according to an SEC filing. It previously targeted about 6 million shares at $24–$26, but revised the offering to $16–$18. The company seeks Nasdaq listing under FISN and says its reactor is unproven; it drilled its first well and plans NRC licensing in early 2027.

NVIDIA (NVDA) faces allegations that CEO Jensen Huang's relationship helped move $7.5B in chips to China, per The Information. Shares fell 5.54% Tuesday, extending weekly and monthly declines. NVIDIA denies significant China data center sales, but the report suggests a potential compliance gap. The company's board has launched an internal investigation. Q2 revenue grew 105.85% YoY to $96.221B, with Q3 guidance at $108B. Competitors AMD and Amazon may benefit from NVIDIA's challenges.

Upstart Holdings (UPST) fell 11% to $19.87 after a hot inflation report increased expectations of a Fed rate hike, impacting its rate-sensitive business. The company revised its 2026 revenue and EBITDA guidance downward, citing macroeconomic headwinds. SoFi (SOFI) and Affirm (AFRM) also declined but less sharply, as their funding models are less sensitive to rate changes. Analysts lowered UPST's EPS estimates, with a consensus price target of $31.19.

MARA Holdings Inc. shares rose 13% after announcing a $500M share buyback, repaying $750M in debt, and reporting Q3 profit of $634.4M driven by bitcoin gains. Revenue fell 35% YoY to $164.2M. MARA aims to reposition as a digital infrastructure company, leasing power to AI and high-performance computing customers.