https://coindoo.com/reason-japanese-crypto-exchange-zaif-sold-bitcoins-free/Japanese Crypto Exchange Zaif Sold Bitcoins For Free.
According to Reuters, the government exchange Zaif, led by Tech Bureau Corp. has announced on 20th February 2018 that seven customers bought Bitcoins for free using their crypto platform.
Tech Bureau Corp. mentioned yesterday that the incident took place on the 16th February 2018. Unfortunately, for the lucky buyers, the crypto exchange cancelled all the transactions made for free.
According to The Asahi Shimbun, “As at least one “buyer” attempted to resell their Bitcoins, an abnormally high quantity of the cryptocurrency appeared for sale on Zaif, and word soon spread on the Internet that around 2,200-trillion-yen worth of Bitcoin was on sale there. The problem was rectified by 7:34 p.m. the same day.”
2200 trillion yens = 20 billions dollars
The announcement was made yesterday. Could that explain the dump ?