Tech giants like Nvidia, Microsoft, and Amazon could power the Invesco QQQ Trust to spectacular returns over the long run.The Nasdaq-100 index is home to 100 of the largest non-financial companies listed on the Nasdaq stock exchange. It tends to maintain a very high exposure to companies in the technology and technology-adjacent industries, and it has delivered spectacular long-term returns thanks to powerful themes like the internet, cloud computing, enterprise software, and now, artificial intelligence (A ...