The $16.6 billion Bitcoin and Ethereum options expiry on September 25 is shaping up to be a significant event in the crypto market.
BTC accounts for nearly 89% of the combined notional value, with $14.73 billion in open contracts and a put-to-call ratio of 0.52.
The largest call concentrations are around $70,000, while sizeable call open interest remains at $85,000 and $90,000, extending through $100,000.
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