The article highlights Dollar Tree's strong performance over the past 15 years, significantly outperforming the market. This historical performance, coupled with the company's current market capitalization of $27.25 billion, suggests a positive outlook for DLTR. The emphasis on compounded returns as a key driver of wealth growth further underscores the potential for continued positive performance. However, past performance is not always indicative of future results, hence the importance score is not at the maximum.