Can someone please explain to me how TA can be applied to trading indexes. I don't have any interest in doing this I just don't understand how it can be interpreted the same as a single instrument such as a stock or currency pair. ie How can the collective movements of say FTSE100 index have support and resistance? Is it becuase it "is" the combined movement and ignores indivdual stocks by indicating the markets appetitie to buy or sell in general. I hope my question makes sense and look forward to some help with this. Thanks in advance.