🟢 CSGP is trading 4.01% up in after-hours

CSGP October 21, 2026

🔴 CoStar Group is trading 4.2% down in pre-market — no new company-specific announcement identified

CSGP October 19, 2026

🔴 CoStar Group is trading 14.94% down today in after-hours trading — after-hours catalyst remains unconfirmed

CSGP October 15, 2026

🟢 CoStar Group is trading 4.15% up on October 15, 2026 — no clear catalyst identified

CSGP October 08, 2026

🟢 CoStar Group is trading 4.29% up

CSGP October 03, 2026

CoStar Group Faces Scrutiny After FTSE All-World Exit as Shares Fall 58%