Can be extremely profitable, on the condition that you find those gaps that show up repetitively and know how to exploit them. It is, of course, easier said than done. It takes some serious nerves to invest in something you can never be entirely sure of its status, whether it will be rising or falling. Market volatility is, in the end, quite unpredictable, which is why most traders often end up with serious losses. But hey, what's life without some excitement? 🙂