Unusual Options Activity

CSGP Unusual Options Activity - CoStar

Last active day
August 21, 2026
Active days (30d)
14
Biggest recent print
Put $35.0000 · $380K

AI summary

On August 21, 2026, CoStar Group, Inc. (CSGP) recorded notable options activity with a significant put transaction. A single print involved a put option with a strike price of $35, expiring on March 19, 2027, which generated a premium of $379,890. The volume-to-open interest ratio for this transaction stands at 5.1, indicating a relatively active position compared to existing open interest. Over the past 30 days, CSGP has experienced options activity on 14 days, reflecting ongoing interest in its options market. The absence of call premiums in this instance highlights a focus on bearish sentiment among traders, as evidenced by the substantial put premium recorded. Overall, this activity may suggest a strategic positioning in anticipation of future price movements for CoStar Group, although no specific directional implications can be drawn from the data alone.

AI-generated summary

Prints on August 21, 2026

TickerSideStrikeExpiryVol/OIPremiumIVNew
CSGPPut$35.000003/19/27 (211d)5.1×$380K50%

History

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