Filing Flows › Costar Group (CSGP) › Q3 2026 › vs Q3 2025
Costar Group (CSGP) Q3 2026 vs Q3 2025 (year over year)
Costar Group's revenue rose $118M (+14%) from $834M in Q3 2025 to $952M in Q3 2026. The biggest changes: Residential Real Estate +$87.0M (+23%); Commercial Real Estate +$31.0M (+7%). Gross margin 77.8% against 79.4% (-1.5 pts).
Costar Group, Q3 2026: revenue $952M (+14% year over year), operating margin 8.8%, net earnings $74.0M, operating cash flow $188M. The chart draws each line against Q3 2025, the increases inside each band.
Margins
| Q3 2026 | Q3 2025 | Change | |
|---|---|---|---|
| Gross margin | 77.8% | 79.4% | -1.5 pts |
| Operating margin | 8.8% | -6.1% | +14.9 pts |
| Net margin | 7.8% | -3.7% | +11.5 pts |
| Free cash flow margin | 14.4% | -0.6% | +15.0 pts |
Every line
| Line | Q3 2026 | Q3 2025 | Change | % |
|---|---|---|---|---|
| Commercial Real Estate | $492M | $461M | $31.0M | +7% |
| Residential Real Estate | $460M | $373M | $87.0M | +23% |
| Revenue | $952M | $834M | $118M | +14% |
| Gross profit | $741M | $662M | $79.0M | +12% |
| Cost of revenue | $211M | $172M | $39.0M | +23% |
| Operating profit | $84.0M | −$51.0M | $135M | — |
| Operating expenses | $657M | $713M | −$56.0M | -8% |
| Pre-tax earnings | $84.0M | −$46.0M | $130M | — |
| Sales & marketing | $366M | $418M | −$52.0M | -12% |
| General & admin | $138M | $157M | −$19.0M | -12% |
| Other operating costs | $153M | $138M | $15.0M | +11% |
| Net earnings | $74.0M | −$30.9M | $105M | — |
| Income tax | $10.0M | −$15.0M | $25.0M | — |
| Depreciation & amortization | $98.0M | $69.0M | $29.0M | +42% |
| Share-based compensation | $32.0M | $71.0M | −$39.0M | -55% |
| Working capital & other | $16.0M | $41.1M | −$25.1M | -61% |
| Operating cash flow | $188M | $68.0M | $120M | +176% |
| Free cash flow (OCF − capex) | $137M | −$5.0M | $142M | — |
| Capital expenditures | $51.0M | $73.0M | −$22.0M | -30% |
Questions
How much did Costar Group's revenue grow year over year in Q3 2026?
Costar Group's revenue rose $118M (+14%) from $834M in Q3 2025 to $952M in Q3 2026.
What drove Costar Group's revenue change in Q3 2026?
Residential Real Estate +$87.0M (+23%); Commercial Real Estate +$31.0M (+7%).