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CoStar CSGP

US equityMarket cap rank #1363
$27.66 +$0.28 (+1.02%)
Market closed · Oct 5, 8:20 pm ET · Last extended-hours $27.55 -0.40%
Open$27.25
Prev close$27.38
Day range$27.18 – $27.68
Volume4.93M
Market cap$11.21B
P/E (TTM)153.7
Dividend yield–

Average implied volatility across the listed chain right now: 124%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $30.00 $0.22 $0.15/$0.30 1 873 49%
16 Oct 2026 $25.00 $2.73 $2.45/$3.30 0 23 56%
16 Oct 2026 $22.50 $4.97 $3.90/$7.00 0 3 103%
16 Oct 2026 $35.00 $0.05 $0.00/$0.20 7 1,123 73%
16 Oct 2026 $20.00 $7.43 $6.40/$8.50 0 1 0%
16 Oct 2026 $17.50 $9.92 $8.90/$11.00 0 0 0%
16 Oct 2026 $40.00 $0.05 $0.00/$0.10 1 493 106%
16 Oct 2026 $15.00 $12.42 $11.60/$13.50 0 6 0%
16 Oct 2026 $45.00 $0.00 $0.00/$0.05 0 246 75%
16 Oct 2026 $50.00 $0.00 $0.00/$0.20 0 75 90%
16 Oct 2026 $55.00 $0.00 $0.00/$0.45 0 9 103%
16 Oct 2026 $60.00 $0.00 $0.00/$0.10 0 10 115%
16 Oct 2026 $65.00 $0.00 $0.00/$0.45 0 5 126%
16 Oct 2026 $70.00 $0.00 $0.00/$0.05 0 63 136%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $30.00 $2.84 $2.35/$3.10 8 820 63%
16 Oct 2026 $25.00 $0.20 $0.05/$0.45 4 2,218 61%
16 Oct 2026 $22.50 $0.04 $0.00/$0.95 0 93 67%
16 Oct 2026 $35.00 $7.62 $7.00/$8.50 0 135 123%
16 Oct 2026 $20.00 $0.00 $0.00/$0.45 0 10 70%
16 Oct 2026 $17.50 $0.00 $0.00/$0.40 0 4 73%
16 Oct 2026 $40.00 $12.62 $11.60/$13.40 0 0 136%
16 Oct 2026 $15.00 $0.00 $0.00/$0.45 0 8 96%
16 Oct 2026 $45.00 $17.62 $16.60/$18.40 0 5 168%
16 Oct 2026 $50.00 $22.62 $21.60/$23.40 0 45 196%
16 Oct 2026 $55.00 $27.62 $26.60/$28.40 0 0 220%
16 Oct 2026 $60.00 $32.62 $31.60/$33.40 0 0 242%
16 Oct 2026 $65.00 $37.62 $36.60/$38.40 0 0 261%
16 Oct 2026 $70.00 $42.62 $41.60/$43.40 0 0 279%

Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.

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