The biggest day of bitcoin option block trades on Deribit since at least 2019 was a week ago.

Sep-21: $8.55B in 355 blocks, 83.3% of it in calls. The old record was $5.60B on Oct-10 2025. For scale, today through 16:00Z: $1.07B.

That was the day bitcoin closed +6.70%, from $81,144 to $86,579.

$BTC