A Motley Fool veteran with over a decade of experience shares seven investing rules for 2026, using Nvidia, Palantir, and other tech stocks as examples. The author emphasizes that while not claiming expert status, their background in analyzing financial statements and meeting with top executives provides valuable insights for investors willing to put in the effort.

One critical rule stands out: thoroughly evaluating a company's top management team before investing. The author argues this is especially crucial in rapidly evolving tech sectors where leadership quality can make or break a company's success. This involves assessing both capability and integrity of executives like CEOs, CFOs, and sometimes COOs or CTOs.

The author cites Nvidia as a prime example, praising CEO Jensen Huang and CFO Colette Kress for running a "tight ship" with excellent quarterly earnings calls and no accounting issues since Kress took over in 2013. They note that gauging management quality requires some subjectivity but can be learned and improved over time through careful observation and research.