If you can follow only one bit of data, follow the earnings - assuming the company in question has earnings. I subscribe to the crusty notion that sooner or later earnings make or break an investment in equities. What the stock price does today, tomorrow, or next week is only a distraction.
Peter LynchIn the long run, it's not just how much money you make that will determine your future prosperity. It's how much of that money you put to work by saving it and investing it.
Peter Lynch