Lightning Round: Don't get involved in any 'year of magical investing' stock: Jim Cramer

Stock Recommendations - Recommends sticking with high-quality cybersecurity companies like Crowdstrike or Palo Alto Networks [2] - Suggests that if a cancer treatment works, owning the stock is a worthwhile speculation [3] - Considers Credo Technology a winner with a great growth story, despite insider selling [5][6] - Believes Sienna is a good investment, much improved compared to its performance in 2000 [8][9] Market Observations - Notes ServiceNow's acquisition of cybersecurity company Armis for $7 billion [1] - Mentions a recent US sale triggered a $135 million milestone payment for QR Oncology [2] - Indicates the "year of magical investing" is over and advises steering clear of related investments [4] - Acknowledges that people currently dislike what's inside the data center, but good business is being done there [6]