Short covering bitcoins in futures

While opening the door for shorting Bitcoin, Interactive will require that short positions deposit five times the value of their futures contracts in order to protect the brokerage.

In real terms, to short Bitcoin futures purchased on CBOE, an investor would need to margin $100,000. This margin would be nearly $500,000 for Bitcoin futures purchased at CME, where contracts are five times the size.

With no limits to potential losses on short positions if Bitcoin continues to rise