What is quantitative tightening? How is this affecting the stock market? How can we capitalize on this situation?

All these questions are below if you want to answer them. 

I have added both links to the articles. 

https://www.aaii.com/sentimentsurvey

https://www.marketwatch.com/story/feds-quantitative-tightening-is-about-to-arrive-what-that-might-mean-for-markets-11654024143?siteid=yhoof2