with the insanely low volume on btchina and gox I wouldnt be surprised if it was manipulation..the volue spiked around 610 USD and then boo a it seeed about 10 large asks were executed...then I saw brand new bids hot the ledger when it tanked...a few people probably sold around 2k btc and bought back at a 10 to 14 percent discount..now price is right back at 590...dan wish I had holdings to manipulate arket like that..unless this was a gox glitch.I cant ee stamp or chonas prder books at the moment..i was able to buy 3 btc at 537 though.BTC may be many things but boring is not one of them