Approximately $590 Million in BTC Block Option Trades Executed Within 8 Hours Post Binance Security Incident, Dominated by Bearish Puts

Large-scale put option transactions were concentrated in the narrow window immediately following the event<p>In the 8 hours after the abnormal fund outflow incident from Binance's wallets, the total notional trading volume of BTC block options on the Paradigm platform reached approximately $590 million, accounting for half of the BTC block option trading volume on the Deribit platform over the same period. The overall capital flow exhibited a distinctly bearish bias, with put options as the dominant underlying trading instrument.</p><p>The first large bearish put transaction emerged roughly 15 minutes after the initial fund outflow from Binance's wallets, at a time when relevant information had not yet been disclosed to the public. A buyer purchased 250 put options with an expiration date of October 31 and a strike price of $78,000. During the hour of highest trading activity, the market also completed two separate block put transactions of 1,000 contracts each. These options expire in mid-November with a strike price of $74,000, and the combined notional value of the two trades totals approximately $155 million.</p><p>Paradigm's analysis notes that this concentrated wave of put option buying primarily features strike prices clustered in the $74,000 to $78,000 range, a band that closely matched BTC's spot price at the time of the incident. Traders' core objective was predominantly to hedge against short-term market pullback risks, rather than betting on an extreme crash in Bitcoin's price.</p>

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