Blockchain24.co have posted an interview with Joshua Frank, the TIEs CEO, about cryptocurrency manipulations. TIE is monitoring the case of fake trading volumes, and according to Frank, this is a very common practice for many exchanges. He also lists many other cases of frauds in crypto industry.
Looks like condition of out industry is not in the best shape.
Let talk about manipulation in trading volumes, i found many fake volumes made by certain side to pump the altcoin (i don't wanna mention certain projects) . They increase the volumes of the coins until 300%. So, this also can occur on bitcoin since bitcoin has bigger community than alternative coins.