In a notable reversal, Jim Simons' Renaissance Technologies liquidated its entire stake in NuScale Power Corp. during the second quarter of 2026, according to a recent 13F filing. The quantitative hedge fund had just initiated a significant position in the first quarter, acquiring 5.46 million shares valued at approximately $59.14 million. This quick turnaround indicates a strategic shift for the major investor.

Investors should note that 13F filings disclose positions held at the end of a quarter with a delay, so these trades occurred between April and June 2026. During this period, NuScale, a developer of small modular reactors (SMRs), reported a net loss for the second quarter but also maintained a strong liquidity position with $1.9 billion in cash and investments to support its commercialization efforts.