Costar Group (CSGP) options traded 3,816 contracts on October 22, 2026 (2,937 calls and 879 puts, a put/call ratio of 0.30), compared with a 30-day average of 1,328. Options price a move of about ±3.7% by the nearest expiration.
Data as of October 22, 2026.
A breakdown of key statistics for each option expiration listed for CSGP. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.
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