Bitcoin Surges as Options Volume and Institutional Interest Rise.

Bitcoin's sudden rally to two-month highs has spurred demand for calls and boosted activity in the options market. On Wednesday, bitcoin options contracts worth $3.3 billion changed hands across major exchanges, including Deribit. That's the highest single-day notional volume in three months. Call options at strike prices of $30,000, $31,000, $32,000 and $40,000 have been popular among traders in the past 24 hours. The increased demand for options pushed Deribit's bitcoin volatility index, DVOL, to 59.24, the highest since early April.