Here are three options that can outperform the popular ETF.If you're looking for a way to invest in the biggest tech companies currently powering the stock market higher, you've likely considered investing in the Invesco QQQ Trust ETF (QQQ -0.89%). The exchange-traded fund (ETF) tracks the Nasdaq-100 index, which consists of the 100 largest stocks listed on the Nasdaq Stock Exchange. Tech stocks account for the majority of the index's value, with the "Magnificent Seven" making up over 40% of the fund's port ...