Reason being: Because it's Bitcoin 
If there's no bad news, it means it's good news for us, because without bad news Bitcoin will (probably) not go down, bitcoin's trend in the longterm is always up ^^
This sudden rise is very wired for many peoples because its happen on Sunday but still good as touching new highs some good policies also coming from Japan and Australia hope this could more help for more good rise we are now going to touch our new target 10000$ which is very cool If there's no bad news, it means it's good news for us, because without bad news Bitcoin will (probably) not go down, bitcoin's trend in the longterm is always up ^^