Around 23,200 Bitcoin options contracts with a notional value of $1.9 billion will expire on April 18.The impact on spot markets is expected to be minimal due to declining volumes and volatility in derivatives and spot crypto trading.The put/call ratio for this week's Bitcoin options contracts is 0.92, with a max pain point of $82,000.The open interest is highest at the $100,000 strike price, indicating a bullish sentiment among derivatives speculators.