CoStar Group (CSGP) Revenue & Quarterly History
Explore CoStar Group, Inc. (CSGP) revenue from 2023 through the latest reported quarter, with SEC-sourced comparisons and filing-constrained analysis.
Key takeaway
Quarter ended Mar 31, 2026 · FY2026 Q1
Revenue for the quarter decreased marginally compared to the immediately preceding quarter, but increased substantially compared to the same quarter one year earlier. The sequential decline follows three consecutive quarters of growth.
Financial snapshot
Reported revenue, sequential change, year-over-year change, and trailing four-quarter revenue.
Quarter revenue
$897M
Revenue reported for this quarter.
Quarter-over-quarter
-0.3%
Change from the immediately preceding quarter.
Year-over-year
+22.5%
Change from the comparable year-ago quarter.
Trailing four quarters
$3.4B
Sum of the latest four reported quarters.
Quarterly revenue trend
The latest four reported quarters with year-over-year comparisons.
| Period ended | Revenue | Year-over-year change |
|---|---|---|
| Jun 30, 2025 | $781.3M | +15.3% |
| Sep 30, 2025 | $833.6M | +20.4% |
| Dec 31, 2025 | $899.9M | +26.9% |
| Mar 31, 2026 | $897M | +22.5% |
Revenue performance
Reported revenue for the quarter was slightly lower than the prior quarter, reflecting a modest sequential decline. Compared with the same quarter a year ago, revenue was significantly higher.
Quarterly comparison
The small decrease from the prior quarter ended a streak of sequential revenue increases. The year-over-year comparison shows a strong gain, consistent with the broader upward trend.
What to watch
The modest sequential decline, after a sustained period of growth, may be an area to monitor for any change in the underlying revenue trajectory.