If you’re thinking about whether Opera is a buy, sell, or just one to keep on your watchlist, you’re not alone. In the last week, the stock slipped by 3.2%, following a choppier month where it dropped 17.2%. That might make some investors uneasy, but if you zoom out, Opera’s story gets a lot more interesting. Despite the recent turbulence, the stock is still up a massive 356.5% over three years and 116.2% over the last five years. So, what’s driving these swings, and what could that mean for…