CoStar Group, Inc. (CSGP) P/E Ratio History
Historical price-to-earnings valuation from 2003 to 2026
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CSGP Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 6, 2026, CoStar Group, Inc. (CSGP) trades at a price-to-earnings ratio of 2102.4x, with a stock price of $34.90 and trailing twelve-month earnings per share of $0.06.
The current P/E is 367% above its 5-year average of 450.1x. Over the past five years, CSGP's P/E has ranged from a low of 71.9x to a high of 4512.8x, placing the current valuation at the 95th percentile of its historical range.
Compared to the Real Estate sector median P/E of 24.1x, CSGP trades at a 8610% premium to its sector peers. The sector includes 170 companies with P/E ratios ranging from 1.1x to 165.1x.
Relative to the broader market, CSGP commands a significant premium over the S&P 500 median P/E of 25.1x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our CSGP DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
CSGP P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $10B | 483.8 | - | +119%Best | |
| $42M | 7.5Lowest | - | -35% | |
| $42B | 37.3 | 2.21Best | +11% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
CSGP Historical P/E Data (2003–2026)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2026 Q1 | $40.34 | $0.06 | 661.3x | -3% | |
| FY2025 Q4 | Wed Dec 31 2025 00:00:00 GM | $67.24 | $0.01 | 4512.8x | +559% |
| FY2025 Q3 | $84.37 | $0.05 | 1536.8x | +124% | |
| FY2025 Q2 | Mon Jun 30 2025 00:00:00 GM | $80.40 | $0.26 | 311.0x | -55% |
| FY2025 Q1 | Mon Mar 31 2025 00:00:00 GM | $79.23 | $0.29 | 272.3x | -60% |
| FY2024 Q4 | $71.59 | $0.34 | 208.4x | -70% | |
| FY2024 Q3 | Mon Sep 30 2024 00:00:00 GM | $75.44 | $0.43 | 174.0x | -75% |
| FY2024 Q2 | Sun Jun 30 2024 00:00:00 GM | $74.14 | $0.52 | 141.6x | -79% |
| FY2024 Q1 | Sun Mar 31 2024 00:00:00 GM | $96.60 | $0.73 | 133.0x | -81% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $87.39 | $0.92 | 95.0x | -86% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $76.89 | $0.99 | 77.7x | -89% |
| FY2023 Q2 | Fri Jun 30 2023 00:00:00 GM | $89.00 | $0.95 | 93.7x | -86% |
Average P/E for displayed period: 685.0x
Full CSGP Stock Analysis
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Start ComparisonCSGP — Frequently Asked Questions
Quick answers to the most common questions about buying CSGP stock.
Is CSGP stock overvalued or undervalued?
CSGP trades at 2102.4x P/E, above its 5-year average of 450.1x. The 95th percentile ranking indicates a premium to historical valuation.
How does CSGP's valuation compare to peers?
CoStar Group, Inc. P/E of 2102.4x compares to sector median of 24.1x. The premium reflects expected growth above peers.
What is CSGP's PEG ratio?
CSGP PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2003-2026.