Flow summary · Deribit

Flowsum

Compact summary of every active expiry — call/put OI & volume splits, put/call ratios, ATM IV, max-pain strike, total OI/vol in USD. Click any header to sort.

BTC options · per-expiry summary

Spot — · refreshes every 60s · click header to sort

Expiry	DTE	Call OI	Put OI	P/C OI	Call vol	Put vol	P/C vol	ATM IV	Max pain	OI $
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P/C ratio > 1.0 means more put OI/vol than call (bearish hedge demand). P/C < 0.7 generally signals call-heavy positioning. Max pain is the strike that minimizes total in-the-money value at expiry — option-sellers' ideal pin. Source: Deribit /public/get_book_summary_by_currency.