Put/Call Ratio
Options· DE: Put/Call-Ratio
Ratio of put to call open interest for an expiry — a positioning-skew gauge. >1 = more puts (defensive / hedged), <1 = more calls (upside-leaning).
Calculation
put_open_interest / call_open_interest for the given expiry (Deribit).
Unit & source
ratio · tradingstrategies.work BTC Options Max-Pain (Deribit) methodology
Related terms
Definitions are for research and education. Metrics describe market conditions — not financial advice or a buy/sell signal.