$BTC

How can Bitcoin surge nearly four thousand points without any positive news?

Aside from market manipulation, I don't know what other reasons there are; can this kind of upward trend really be maintained?

Shorting at 875, I don't believe it can continue to surge tonight; take profit at 84, stop loss at forced liquidation.

I won't exit unless it drops to 84, unless you can push it up to 110,000 to force me out.