What happens tomorrow means everything to one and next to nothing to the other. For the day trader short seller already spending his profit, the announcement of a new stream deal or other positive development might might be an unwanted surprise. This is still the best silver play around IMHO.... I'm long term bullish silver of course.
Folks are only a bag holders if their time frame is very short, they need to get out and can't weather a blip. There aren't any pre-market trades yet so it remains to be seen how this is going to slide.
With the price of silver being down, its not surprising that the earnings would "disappoint."
If SLW "tanks" I think it will be a 3 day event---if that ~