I know what you're thinking...
But one more can't hurt!
(And we need a Bitcoin thread to balance our Qi.)
The Willy Report: proof of massive fraudulent trading activity at Mt. Gox, and how it has affected the price of Bitcoin | The Willy Report
This blog post suggests, using leaked Mt Gox logs, that two bots were buying and selling hundreds of thousands of bitcoins in November 2013. The author claims these bots are the main catalyst behind the big price spike, not real demand.
And because the bots traded while the API was down, it looks like it was locally hosted. And because of the amount of USD involved, they were probably using money that didn't exist...
Interesting comment suggests arbitrage:
Which is also interesting and possible, but fraud seems most likely. The author includes a chat log (that I didnt quite understand the significance of) but someone he chats with says all bitcoin exchanges are doing shady insider trading things because the money is big.
The guy who wrote the report says he waited 2 months for bitcoin to bottom and return to a "fair price" before posting this information. So, it's also bitcoin hype.
More details here:
A Bot Named Willy: Did Mt. Gox's Automated Trading Pump Bitcoin's Price?

But one more can't hurt!
(And we need a Bitcoin thread to balance our Qi.)
The Willy Report: proof of massive fraudulent trading activity at Mt. Gox, and how it has affected the price of Bitcoin | The Willy Report
This blog post suggests, using leaked Mt Gox logs, that two bots were buying and selling hundreds of thousands of bitcoins in November 2013. The author claims these bots are the main catalyst behind the big price spike, not real demand.
And because the bots traded while the API was down, it looks like it was locally hosted. And because of the amount of USD involved, they were probably using money that didn't exist...
Interesting comment suggests arbitrage:
Another possible explanation for [Bot1]/[Bot2] is that it was doing arbitrage with China. Namely, buying cheap coins at MtGOX and sending them to a partner in China, who sold them there (presumably at BTC-China) for a higher price.
Indeed, the report argues that [Bot1] must have been the cause of the August rally because the price at MtGOX jumped up whenever [Bot1] bought, and remained flat between his buys. But the price at BTC-China increased steadily through August. This suggestst that BTC-China was leading, and MtGOX was following, by discrete jumps, through [Bot1]'s arbitrage.
I have not looked carefully at Sep-Nov, but it seems that in that interval, too, the leader was China (ultimately including Huobi and OKCoin, besides BTC-China), and [Bot1]/[Bot2] were following.
All that one-sided arbitrage would have required an awful amount (hundreds of millions?) of USD in the arbitrager’s MtGOX account. Since [Bot1]/[Bot2] paid no fees, it may have been an insider, and it may have paid with non-existent money, as the report argues. In that case, perhaps [Bot1]/[Bot2]expected to get the money later from the Chinese partner; but the latter defaulted, or could not transfer the money due to the PBoC restrictions.
Which is also interesting and possible, but fraud seems most likely. The author includes a chat log (that I didnt quite understand the significance of) but someone he chats with says all bitcoin exchanges are doing shady insider trading things because the money is big.
The guy who wrote the report says he waited 2 months for bitcoin to bottom and return to a "fair price" before posting this information. So, it's also bitcoin hype.
More details here:
A Bot Named Willy: Did Mt. Gox's Automated Trading Pump Bitcoin's Price?