When Bitcoin futures are launched, will that keep the price from going up to more than 10K? Traders would like to keep the price stabilized and minimize volatility. The ups and downs should not be more than a few hundred dollars. So, will Bitcoin futures stop Bitcoin from going up sky high?
Im not sure from where did you deduce that "Traders would like to keep the price stabilized and minimize volatility.".
One of the reasons traders love bitcoin is precisely because of the fact that it's really volatile, so you can make a lot of money on these wild swings if you can time the market properly.
Futures will allow a ton of money to come in on the ecosystem, I don't see how this is nothing but bullish. People attempting to manipulate the market to short it will get liquidated, this is not a regular market, manipulation doesn't work when a market global and 24/7. If the old wall st folks are trying to pump it to short it they are going to lose their tshirt.