Stock technical analysis

It is so interesting to learn how to measure the stock trend using those analysis based on historical data.

I spent a few hours to watch the analysis from youtube.com. Here is the link. 

BA stock - Boeing 

1:08 - 1:10 

BA stock - fundamental analysis - asset is less than debt 

Facebook stock -
1:10 - 1:12
When to stop loss? How to analyze using investing.com Chinese version.