I just had a funny experience a few moments ago. I was glancing at the After Hours data, as I usually do after the close, and I saw NFLX was down nearly 10% (I have no position). I think noticed BIDU was up nearly 8%, at which time I muttered an expletive, since I knew I had a position on it.
The funny thing is, I'm long the stock (yes, believe it or not, I've been buying lately), so it's actually good news for me. It's kind of funny how it takes someone like me a while to realize that a stock going up can actually be good news. (Note: the stock's rise is not reflected in the chart below, but suffice it to say it is a lifetime high).