Accroding to coinmarketcap.com, there are 15 trade platforms which list peercoin, and more than 2/3 platfrom almost don’t have any trade. The top ppc trade volume in that platform-coinegg is chinese platform where are mainly chinese users, coinegg is a nameless and small platform in China.
That’s all fake volume. I opened an account at Bitsane recently, and even there the small PPC/BTC trade volume is all fake.
Real PPC/BTC trade is only happening at Bittrex and Poloniex. And a few people buy PPC directly with Euro at litebit.eu.
That’s about it, at least in my observation.
For other coins it’s the same, most of the trade volume in coinmarketcap is fake.