More and more derivatives exchanges came out. As I see, bitcoin derivatives are the improvement and development of the bitcoin market.
I used to think the same, that the derivatives exchanges were beneficial for bitcoin. Now i think not so much. These derivative exchanges just create an investment market parallel to the bitcoin market, not in it. If the investment or exchange isn't hitting the blockchain, it's not influencing bitcoin. It's like a bunch of rich people that don't want to touch bitcoin have decided to make some side bets on its price...like a friday night parlour trick, entertainment on boys night out, etc. They don't take bitcoin seriously, they just want something new to bet with their "play money".
Let's not give too much credit to the derivative exchanges until they start interacting with the blockchain.