Bitcoin tumbled 9 percent in a half-hour Tuesday, sending prices to the lowest in three months, following margin calls at Bitmex.
Source: https://www.coindesk.com/bitcoins-price-slides-1000-in-30-minutes-after-margin-calls-at-bitmex
Source: https://www.coindesk.com/bitcoins-price-slides-1000-in-30-minutes-after-margin-calls-at-bitmex
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