Cryptopia is the best option for now... For the past few weeks, somebody or groups/trader(s)/investor(s) have been buying up Kobocoin to the point that it reached  0.00001 to 0.00002 BTC with volumes of 2 BTCs to 5 BTCs... (sweeping the floor in stock market parlance).. However,  the price usually returned to the base levels of 0.000006s to 0.0000070s after the buyups .