I was wondering the same thing, interesting how it keeps steady at around 1k$, tho I don't believe some big investors are involved. But hey, even 1k$ is well enough for me. :p
As much as I've understood from the last few topics, there's been a hard debate over segwit and hardfork, so that may be involved in this price stagnation, so until that's resolved, we won't be seeing any huge jumps in price?