NuScale Power Corp SMR shares are tumbling Monday after Hunterbrook issued a report suggesting the company is under investigation by the U.S. Securities and Exchange Commission. What Happened: Hunterbrook published a report Monday morning claiming the SEC's Division of Enforcement currently has an "active and ongoing" investigation into NuScale Power. A spokesperson for NuScale Power told Benzinga that it's not aware of any SEC investigation into the company. "Hunterbrook is a known short-seller that has a ...