Disclaimer: I own no bitcoin and am not trying to scare the bejesus out of anybody who does or doesn't.
This image is my analysis on an xe.com screenshot of the last 1 year of XBT as USD:
Raw armchair analysis here - the takeaway is that the current bitcoin value of $3381 is a key point of support, if broken thorough the next point of support is $2500. The green lines show some volatility in 2016/2017, Feb-July 2017 in yellow lines shows increased volatility with a peak in June when there was some negative news to take the shine off Bitcoin temporarily, but really April to September in blue lines have seen 3x the variability of early 2017.
Looks like the volume has been dropping off recently - previously the volume increased with price (suggesting lots of agreement between buyers and sellers on price), but the price has come down and so has volume - suggests the buyers/sellers are having difficulties with the current price. Buyers may be thinking the price will go lower, sellers may be thinking this is just a dip.
I think the next 48 hours are going to be pretty telling.
Good luck to all!
Technically bitcoin is seriously fighting to remain above $4,000 and there a lot of force using governments and medias to bring it's bellow that level. We only need few positive news to keep bitcoin growing from the attacked it has had recently from people like Jamie Dimon and others people of the same mind.