Somebody just swept the Order Book all the way up to 0.00395...
It's the only way to buy any volume... just take a look at the Depth Chart.
So few people are selling Clams that they are very hard to accumulate.
I've had a buy order at 0.001 for about a week now, but it hasn't been hit at all. The price was just a fraction over 0.001 when I placed it, and now it's around 0.003.
I'm not very experienced with exchange markets. Could my large buy order (I have a series of smaller buy 'steps' now) be driving the upward price movement even though I'm not actually buying anything?