Jim Cramer: NRG Up, Deluxe Out, Nvidia 'You Have To Trim'
1. Cramer indicates investors should trim NVIDIA holdings. 2. Nvidia faces a $5.5 billion charge for halted GPU shipments. 3. Goldman Sachs initiated buy coverage for NRG Energy. 4. Nvidia stock rose 1.4% despite market concerns. 5. Cramer expresses concerns about market changes affecting ownership strategies.