I know that sectors (energy, financials, etc.) perform differently at any given time but do they have any distinct differences in how they behave from a technical analysis point of view? I know that the technology sector took a major hit early this decade which would make it seem that it can be highly volatile but is that true or is it just as likely for this to happen to any sector? I'm not asking for specifics, I just want to know whether or not it is worth my time to look at the sectors as individuals with distinct characteristics or just as loose categories of stocks that tend to move together. Sorry if this question seems dumb, I haven't read much about the different sectors of the market.