CoStar Group Swings To Q3 Profit As Revenue Rises
CoStar Group (CSGP) reported a Q3 2026 net profit of $74M, reversing a $31M loss from Q3 2025. Revenue rose to $952M from $834M. Year-to-date, net income was $132M, up from a $40M loss in 2025, with revenue at $2.774B. Shares fell 9.89% after hours to $28.85.
How this was made
The 30-second read
Why it matters
The earnings surprise and after‑hours price drop suggest short‑term volatility; longer‑term outlook depends on guidance.
Market read
Fresh earnings data with a notable profit reversal; immediate trading relevance due to after‑hours price move.
What to watch
Management commentary on future guidance and cost controls is not detailed in the release.
Background
CoStar Group provides commercial real‑estate information and analytics; its earnings are closely watched for sector health.
Ticker impact
CoStar Group reported Q3 2026 net profit of $74M, revenue $952M, and after‑hours price down 9.9% at $28.85.
likely further pressure as investors digest profit swing and revenue growth
The surprise profit reversal is fresh news; the sharp after‑hours decline suggests negative sentiment despite earnings beat.
Market effects
Positive revenue growth may support commercial‑real‑estate data sector, but stock weakness could weigh peers.
U.S. tech‑focused investors may see a short‑term pullback in data‑service stocks.
Limited to U.S. markets; no broader macro effect.
Counterpoint
The profit swing could signal a turnaround; buying on the dip may capture upside if revenue growth sustains.
Key entities
- CompanyCoStar Group, Inc.
Commercial real‑estate data provider

