Bitcoin (BTC) options open interest climbed to $37.70 billion in a Coinglass snapshot Tuesday, while a Deribit put led individual-contract volume, showing a split between outstanding positions and recent trading.
Coinglass recorded the Oct. 27 snapshot at 7:20 a.m. ET (11:20 UTC). Open interest was 0.85% higher than the $37.38 billion level in a previous EconoTimes options report. The $37.70 billion figure measures open contracts, while about $2.55 billion was traded over 24 hours.
Calls comprised 59.34% of open interest, leaving puts with 40.66%. Across the 24-hour trading period, calls accounted for 52.45% of volume and puts 47.55%. Calls held the larger share in both measures, although their lead was narrower in trading than in outstanding positions.
The largest open-interest positions were all Deribit calls. The $95,000 strike ranked first, followed by the $100,000 and $90,000 strikes; all three expire Friday, Oct. 30. The volume list had a different leader: the Dec. 25 $72,000 put ranked first, ahead of a Dec. 25 $90,000 call and a Nov. 27 $95,000 call.
Open interest measures contracts still open; volume measures contracts traded during the 24-hour window. A call lets its holder buy the underlying at the strike price; a put lets its holder sell it. The strike is the contract price used for that right, while the expiration date marks when the option ends.
The shares compare calls and puts across the market, while the rankings identify specific contracts by venue, strike and expiration. Because options can serve as hedges as well as provide exposure, the call-put shares alone do not establish traders' overall market direction. In this snapshot, a put topped the individual-contract volume ranking even as calls held a collective majority of daily volume.
