PE Ratio: 164.71

Basis: Latest stored market observation. Source: stored company filings and market data; unavailable inputs remain N/A.

The P/E ratio is 164.71 as of Sunday, August 9, 2026.

PE Ratio (164.71) = Close Price ($30.24) / Diluted TTM EPS ($0.18)

CSGP PE Ratio Metrics

P/E vs. its own history

At 164.7, P/E is richer than usual, sitting higher than 79% of its 20-year history.

P/E Comparison

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for CoStar Group, Inc. (CSGP)?

The P/E ratio for CSGP stock is 164.71.

What is the TTM average P/E ratio for CoStar Group, Inc. (CSGP)?

The TTM average P/E ratio for CSGP stock is 765.63.

What is the 3Y average P/E ratio for CoStar Group, Inc. (CSGP)?

The 3Y average P/E ratio for CSGP stock is 206.48.

What is the 5Y average P/E ratio for CoStar Group, Inc. (CSGP)?

The 5Y average P/E ratio for CSGP stock is 136.85.

What is the 10Y average P/E ratio for CoStar Group, Inc. (CSGP)?

The 10Y average P/E ratio for CSGP stock is 101.58.

What is the 15Y average P/E ratio for CoStar Group, Inc. (CSGP)?

The 15Y average P/E ratio for CSGP stock is 135.36.

What is the 20Y average P/E ratio for CoStar Group, Inc. (CSGP)?

The 20Y average P/E ratio for CSGP stock is 97.80.

Showing the most recent 260 of 4,908 data points. The chart above shows the full history.

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