I am not seeing any manipulation in this. Very low volumes traded, the gap between bids and asks are not moving much at all. So for it to jump up to 320 is not that big of a surprise. I bought some the other day at 250. Had a bid in the day before at less than that and nobody wanted to sell that low.
Look at the coin volumes over the past week, almost nothing.
Why buy 320. 2 million coins, if right here and now sell for 250, not tomorrow . That kind of nonsense? Who's trolling ?
Raise the purchase price by 10-20 Satoshi-miners will bring you as much as you want . The miners make 7.6 million coins a day! Buy no problem how many you want! Why at the price of 250 to buy 320? 2 million coins !
No probs if the moment is gone and you don't want to.