Bitcoin Options Market Shows Bullish Bias with $4.22B OI and Dominant Call Volume

The Bitcoin options market has shown a clear upward bias in both medium-term and short-term positions. Open interest (OI) and trading volume are moving in the same direction, reflecting heightened risk appetite. According to CoinGlass data as of September 19 at 9:40 AM, Bitcoin options open interest totaled $4.228458 billion, a 4.34% increase from the previous day's $4.052419 billion. The total trading volume for Bitcoin options was approximately $6.421 billion.

Open interest composition showed call options at 60.62% and put options at 39.38%. On a 24-hour trading volume basis, calls accounted for 56.79% while puts made up 43.21%. Calls dominated open interest, indicating medium-term positions are more heavily weighted toward bullish outlooks. Similarly, call volumes outpaced put volumes in short-term activity, reflecting upward expectations.

The top contracts by open interest were: $70,000 call options (September 25, Deribit), $85,000 call options (September 25, Deribit), and $90,000 call options (September 25, Deribit). By 24-hour trading volume, the top contracts were: $85,000 call options (September 25, Deribit), $80,000 call options (September 25, Deribit), and $82,000 call options (September 25, Deribit).