Mark my words, a large whale buy is coming, this will spark a rally similar to the rally after the china crash. There's are many traders waiting to buy back in who are hoping this isn't the bottom yet but have their fingers on the trigger, look at the order book on Bitstamp, buyers far outweigh sellers. There are also many ex gox customers who need to buy back in. Don't get left behind, when it happens, it will happen quickly.
I expect 820 within 7 days, if not more.
less than 50K till 200 that is what in bitstamp order book at the moment, and there is only bitstamp and btc-e for trading now, BTC-e have a very tinny book order, you could bring the price to 0 with 10K dump on BTC-e, dont forget that there is 12 million bitcoin on existence, that 50K against the 12M is nothing .
and also if bidders would think that the price at 560 or at 600 is reasonable they would place their orders there, but I see only 9K bitcoin to 500 and 20K to 400 and 35 to 300 and most down less than 200, people base their bids based on what they think bitcoin is worth, and the same works for sellers, they put sell orders on what they think their bitcoins are worth, but at the moment buyers are not voting for $560.
IMHO there is no whale that would pump the price just like that, if someone decided to buy 10K bitcoin at a market order, then there is only 3 scenarios: a) pump and dump b) insider trading c) someone who doesn't give a fuck about his money and don't care about buying at 100 or 1000 which means he is not a whale but rather an idiot.