CoStar Group Inc. (CSGP)
NASDAQ: CSGP
· Real-Time Price · USD
84.80
0.90 (1.07%)
At close: Oct 03, 2025, 3:59 PM
83.90
-1.06%
After-hours: Oct 03, 2025, 06:47 PM EDT
CSGP Option Overview
Overview for all option chains of CSGP. As of October 05, 2025, CSGP options have an IV of 69.92% and an IV rank of 228.88%. The volume is 568 contracts, which is 104.99% of average daily volume of 541 contracts. The volume put-call ratio is 0.07, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
69.92%IV Rank
100%Historical Volatility
21.07%IV Low
34.69% on Jul 28, 2025IV High
50.08% on Oct 02, 2025Open Interest (OI)
Today's Open Interest
28,230Put-Call Ratio
0.44Put Open Interest
8,669Call Open Interest
19,561Open Interest Avg (30-day)
25,804Today vs Open Interest Avg (30-day)
109.4%Option Volume
Today's Volume
568Put-Call Ratio
0.07Put Volume
35Call Volume
533Volume Avg (30-day)
541Today vs Volume Avg (30-day)
104.99%Option Chain Statistics
This table provides a comprehensive overview of all CSGP options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Oct 17, 2025 | 94 | 20 | 0.21 | 6,202 | 2,199 | 0.35 | 69.92% | 85 |
| Nov 21, 2025 | 76 | 9 | 0.12 | 269 | 291 | 1.08 | 50.17% | 95 |
| Jan 16, 2026 | 329 | 4 | 0.01 | 9,874 | 3,389 | 0.34 | 41.12% | 85 |
| Mar 20, 2026 | 1 | 1 | 1 | 1,879 | 641 | 0.34 | 38.94% | 80 |
| Apr 17, 2026 | 0 | 0 | 0 | 12 | 3 | 0.25 | 37.58% | 85 |
| Jun 18, 2026 | 0 | 0 | 0 | 323 | 1,626 | 5.03 | 37.21% | 90 |
| Sep 18, 2026 | 1 | 0 | 0 | 125 | 272 | 2.18 | 35.57% | 90 |
| Jan 15, 2027 | 32 | 1 | 0.03 | 843 | 248 | 0.29 | 32.75% | 70 |
| Jan 21, 2028 | 0 | 0 | 0 | 34 | 0 | 0 | 32.26% | 45 |