YAHOO FINANCE IS REALLY DISAPOINTING.
A lot of problems with bugs and stability.
Once again, we have an other one.
It's not possible to compare a title with others in Advanced Chart.
All buttons at the upper left of the chart dissapeared, so no possibility to add other titles.
This is not a serious development team!

Programming, changing things and not testings.
Even a 5-Year old kid understands that testings before implementing changes is a REQUIREMENTS!