Kraken: Offers futures and margin trading, so you can leverage your bets.

KraKen operated for 10 years and was of good reputation and low handling fees. It sent the notice as follow on July 29. It kept under maintenance for a week. It said they would reply within 24 hours, which was like a joke to Chinese users. They disappeared and we hoped someone could help to investigate the truth. Please do not be cheated by small profits, and deal with coin trades carefully. We are still waiting because of the profits. Investment should be made under professional guidance. The trading process would be regularly in 24 hours. It was what KraKen like in the past. But now we are unable to withdraw because the app showed the system was under maintenance.