Thanks for the great reply. Indeed I am interested in you expanding more. I've been a long-term "valueish" investor, following the preachings of Warren Buffett for over 15 years. My long-term portfolio is pretty well balanced, Apple, to banks, to Berkshire Hathaway, Amazon, Ford, AMD, and SPY.
Recently, when the market got way overdone and oversold, I'd even call some of it panic selling with the bottoming happening Christmas Eve. I am curious how I can be more analytical, and data driven to make decisions during these events, rather than just gut feeling of panicking, negative news, and oversold conditions. Well I did add to my Apple position in this late December, I should have pulled the trigger more. I was somewhat conservative, missing the huge runup last month in January of most all stocks.