I work in biotech so I invest in biotech. I try to focus on 10-15 stocks. A core of 5 and the other 5 or so I play catalyst events. I dont get technicals. I can tolerate lots of risk. On the year, I'm up 80%
I'm new, but learning something everyday.
I like bios/ tech, but they must have fundamentals.
Read everything you can.
P.S. If you try to pick the bottom every time, all you get is sticky fingers.
P.P.S Use stops.