CSGP vs Z
CSGP: CoStar Group is the dominant digital engine powering real estate research, marketplace discovery, and 3D spatial visualization for commercial and residential markets. Z: Zillow is a digital-first real estate platform transforming the housing market through data-driven search, agent connectivity, and integrated mortgage services.
Side-by-side fundamentals
| Metric | CSGP | Z | Edge |
|---|---|---|---|
| Price as of 2026-10-08 close | $29.81 | $29.17 | |
| Market cap | $12.1B | $7.7B | |
| P/E as of 2026-10-08 | 168.32 | 129.47 | Z lower |
| Net margin FY2025, SEC XBRL | +0.2% | +0.9% | Z higher |
| Gross margin FY2025, SEC XBRL | +78.9% | +74.1% | CSGP higher |
| Operating margin FY2025, SEC XBRL | -2.2% | -1.3% | Z higher |
| ROE FY2025, SEC XBRL | +0.1% | +0.5% | Z higher |
| ROA FY2025, SEC XBRL | +0.1% | +0.4% | Z higher |
| Debt / equity as of 2026-09-03 | 0.13 | 0.11 | Z lower |
| Revenue growth (YoY) as of 2026-09-03 | +22.0% | +17.7% | CSGP higher |
| Revenue CAGR (3y) SEC XBRL | +14.2% | +9.7% | CSGP higher |
| Dividend streak (yrs) SEC XBRL | 0 | 0 | Tie |
| Beta as of 2026-09-03 | 0.75 | 1.16 | |
| 1-year return as of 2026-10-08 close | -62.3% | -59.2% | Z higher |
Fundamentals: SEC XBRL company filings for the figures marked with a fiscal year, and market data, as of 2026-09-03 for the rest. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-10-08.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date; "Edge" cells are a pure numeric comparison, not a recommendation.