CoStar Group (CSGP) Options Chain & Prices $80.76 -0.74 (-0.91%) Closing price 06/27/2025 04:00 PM EasternExtended Trading$79.65 -1.11 (-1.37%) As of 06/27/2025 07:57 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Options Chain Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock CSGP Put and Call Options List 1/15/2027 9/18/2026 6/18/2026 3/20/2026 1/16/2026 10/17/2025 9/19/2025 8/15/2025 7/18/2025 Options Date Put and Call Options Put Options Call Options Options Type All In The Money Out of The Money Moneyness With Volume Without Volume All Volume Strike Price Min Strike Price Max Export to Excel ExpiresStrike PriceClose PricePut/CallVolumeVolume AskVolume BidOpen InterestImplied VolatilityDeltaTrades7/18/2025$80.00$1.439Put826271(+0)24.49% (-0.20%)-0.41001577/18/2025$80.00$2.428Call1 - - 695(+2)24.49% (-0.20%)0.59541117/18/2025$85.00$0.603Call1 - 11317(+0)25.14% (+0.65%)0.22322717/18/2025$90.00$0.256Call10 - 10736(+0)32.04% (+1.68%)0.0931071End-of-day options data provided by Trade Alert and Intrinio. Related Companies and Tools Related Companies SE Options EQIX Options EBAY Options VRSN Options AKAM Options SPSC Options YELP Options ZD Options CMPR Options QNST Options Options Chain Tools Short Interest TrackerShort Interest IncreasesShort Interest DecreasesUnusual Call VolumeUnusual Put Volume This page (NASDAQ:CSGP) was last updated on 6/28/2025 by MarketBeat.com Staff From Our Partners3..2..1.. AI 2.0 ignition (don’t sleep on this)I just put together an urgent new presentation that you need to see right away. 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