The article focuses on the keyword “What is the #1 rule of investing,” addressing the search intent of individuals seeking foundational investment principles. It offers a clear explanation of the #1 rule, emphasizing its importance for both novice and experienced investors. The content aims to demystify investing by providing actionable insights and guidance on how to apply this rule to build wealth and secure financial futures. This information is valuable for webmasters looking to attract an audience interested in personal finance and investment strategies, as it positions the article as a helpful resource for understanding essential investing concepts.