Just read this note by MIke Vodicka and thought could it be whats affecting Unga?
3 Reasons Stocks Can Drop After an Earnings Surprise
1) Estimates vs. Expectations: The standard definition of an earnings surprise is when actual earnings come in higher than earnings estimates. But those estimates are the "published" numbers from the brokerage analysts. Quite often investors tend to develop their own unique set of expectations that can differ greatly from the Wall Street analysts. If there is too much optimism ahead of the release, then actual earnings will need to be a blowout in order to appease investors' inflated expectations. This is the most common reason why some stocks fall after a "supposed" earnings beat.
2) Quality of Earnings: The highest quality earnings come from having robust revenue growth. This means that the company's products or services are in high demand and should stay that way. However, these days far too much of the earnings being reported is generated from cost cutting and other "accounting gimmickry". The problem is that the benefits of these moves don't last. When the market gets a whiff that the earnings are unsustainable, no matter how strong the beat, shares will most likely drop.
3) Forward Guidance: Plain and simple, when you buy a stock you are taking an ownership stake. And what owners of companies care about is the stream of future earnings. So if a company beats earnings for the quarter just reported, but warns that future quarters will see lower earnings, then that stock will go down...and go down fast.