It is embarrassing to see that one of the GLB stocks I posted in my new GLB tracker table , IPGP, fell 15% the next day. This brings up a very important lesson I teach my students. Always know the expected earnings release date for all stocks held or to be purchased. In these very volatile days, I usually sell my position before earnings day. Otherwise, I am merely gambling. On the other hand, those gamblers who held LNKD or AMZN through earnings were greatly rewarded!