QQQ Trust Stock Analysis

The idea is to wait the end of the price retracement before buying.
QQQ
Major Company:
Apple Inc. (AAPL), Microsoft Corporation (MSFT), Amazon.com, Inc. (AMZN), Alphabet Inc. Class C (GOOG) and Alphabet Inc. Class A (GOOGL), and Facebook, Inc. (FB). (Note that GOOG and GOOGL are actually the same company.)