I have seen an Exchange that manipulates prices on its Exchange, their purpose is only to attract traders to trade there. But they forget that today's traders are no longer stupid, Traders now know how to distinguish between the real prices and fake prices.
So much people lost their money in these kinds of exchanges. They manipulate their prices and let people deposit some fun. People send small mount of coin and make their first try. When it is successful people send more coin for buying something cheaper than market price. And they never can withdraw their fund again. Sen e-mails to customer support and no response.
Never fall this trap. These exchanges are scammers. Always trade at safe exchanges. Binanca, Bitfinex, Bittrex, Coinbase etc. Kraken also alternative.
Also be careful about Okex and Huboi as they are using wash trades and show fake volume.
Safe Trades to everyone.