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CSGP CoStar Group, Inc.

Real Estate

31.82 +1.65 +5.47% Close 11/2
Since 2024-12-02 -62.3%
Open
30.04
High
32.24
Low
30.00
Prev close
30.17
Volume
5.6M
Amplitude
7.42%
P/E
69.0
P/B
1.5
Revenue YoY (TTM)
+20.2%
52W 25.89 70.63

Is CoStar Group, Inc. a buy? Fundamentals and valuation first

As of 2026-10-30

Growth: Strong, Risk / liquidity: Good; Valuation: Pricey.

Valuation Pricey Free-cash-flow yield is Average; TTM P/E is Expensive.
TTM P/E 69.01 88th percentile Expensive
Price / book 1.52 50th percentile Pricey
Free-cash-flow yield (%) 0.54 50th percentile Average
US Stock Backtest in Python: Price-to-Book Ratio StrategyQuality Factor Investing: A US Quality Value Backtest
Quality Neutral All 3 indicators are Average.
ROE, TTM (%) 2.24 46th percentile Average
Operating margin, TTM (%) 5.78 48th percentile Average
FCF margin, TTM (%) 1.78 43th percentile Average
Quality Factor Investing: A US Quality Value Backtest
Growth Strong Diluted EPS growth, TTM YoY is Top; Revenue growth, TTM YoY is Good.
Revenue growth, TTM YoY (%) 20.2 74th percentile Good
Diluted EPS growth, TTM YoY (%) 696.36 95th percentile Top
Momentum Neutral 60-day return is Good, but 240-day return is Lagging.
60-day return (%) 1.99 75th percentile Good
240-day return (%) -55.66 15th percentile Lagging
Momentum Trading Strategy: A 12-1 Momentum Backtest
Risk / liquidity Good 20-day dollar volume is Top, but 60-day annualized volatility is Average.
20-day dollar volume 197,293,573 92th percentile Top
60-day annualized volatility (%) 58.33 63th percentile Average
Factor Investing Explained: 10 Classic Factors in US Stocks

CoStar Group, Inc. (CSGP) today

1 quant signals active · As of 2026-10-30

Win rate and excess are historical post-trigger stats vs the market. Click a signal for its full definition and samples; history does not predict future results.

FinLab Studio

From CoStar Group, Inc. to every stock like it

AI finds several complementary traits of CoStar Group, Inc. across different dimensions, combines them into a multifactor strategy, and backtests it against the market.

Screen stocks like CoStar Group, Inc.

CoStar Group, Inc. (CSGP) peers and tracking

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CoStar Group, Inc. (CSGP) quant signal backtests

Signals active now

Each active condition is tested against this stock’s own history and benchmarked versus the S&P 500.

EPS surprise beat

Active · now 12.79%

Reported EPS beat consensus estimate by at least 5%; event date is the earnings-surprise timestamp.

PEAD: Post-Earnings Announcement Drift Backtest
39 historical occurrences (since 2015-04-29)

Average forward return after EPS surprise beat

20-day: Win 60%, Sample 35, Median +2.64%, Excess +0.03%, Beat mkt rate 51.4%

60-day: Win 54.3%, Sample 35, Median +1.62%, Excess -0.63%, Beat mkt rate 48.6%

120-day: Win 61.8%, Sample 34, Median +5.06%, Excess -2.64%, Beat mkt rate 47.1%

120 days after: historical avg +4.1%

20-day +0.8%
60-day +2.69%
120-day +4.1%
20-day
60-day
120-day
Win
60%
54.3%
61.8%
Sample
35
35
34
Median
+2.64%
+1.62%
+5.06%
Excess
+0.03%
-0.63%
-2.64%
Beat mkt rate
51.4%
48.6%
47.1%

Over 34 occurrences, 120-day forward avg gained 4.1%, lagged the market by 2.64 pts; win rate 61.8%.

Valuation regime and forward returns

Daily TTM P/E is converted into an expanding own-history percentile, then grouped into five valuation regimes. Forward returns use adjusted prices over the next 240 trading days.

PE percentile bandSample days240-day avg returnMedianWin rateAvg excess (vs index)
0-20 You are here640+5.9% +4.9% 60.5% -5.9%
20-40 196+2.3% -2.9% 46.9% -13.8%
40-60 339-25.6% -35.1% 29.2% -46.8%
60-80 1Insufficient data
80-100 243-14.8% -14.8% 26.3% -33.4%

Quarterly EPS is aligned by SEC filing date before it is forward-filled to daily prices. The expanding percentile uses only information available up to each day.

Current TTM P/E is about 69.01, placing it in the 0.1 own-history percentile, inside the 0-20 bucket.

More history: Valuation × momentum analogs, Market-wide momentum baseline, Signals not active now

Valuation × momentum analogs

Each historical day is grouped by own-history P/E tercile and 60-day momentum direction, then tested for the next 120-trading-day adjusted return.

Valuation
Momentum
Cheap (own-history bottom third)
Middle
Expensive (own-history top third)
60-day momentum up
Now
-5.9%
Win rate 32.7% Excess -13.2%
394d
-3.9%
Win rate 49.8% Excess -13.4%
237d
-2.3%
Win rate 21.8% Excess -16.2%
170d
60-day momentum down
+9.6%
Win rate 69.3% Excess +5.1%
387d
+2.3%
Win rate 65.3% Excess -5.2%
167d
-26%
Win rate 27.7% Excess -37.6%
184d

Currently in “Cheap (own-history bottom third) × 60-day momentum up”: across 394 historical days, 120-day forward avg declined 5.9%, win rate 32.7%, lagged the market by 13.2%.

Days = trading days in this bucket; returns use adjusted prices, ex-costs. 60-day momentum: direction of this stock's price over the past 60 trading days.

Market-wide momentum baseline

Across 99,493 liquid US common-stock samples, top-quintile 6-month momentum was followed by an average 60-trading-day return of +6.42%, a 58.4% positive-return rate, and +3.08 percentage points of average excess return versus the S&P 500.

Baseline: weekly samples since 2016 where a liquid US common stock ranked in the top quintile by 126-trading-day momentum. Forward return is 60 trading days; excess return is versus S&P 500 (^GSPC).

Signals not active now

Inactive signals still show the stock-specific historical forward-return distribution for context.

52-week adjusted-price high

Pending

Adjusted close first reaches a 252-trading-day high; repeated hits within 20 days count once.

22 times historically; 60-day forward avg +0.41%, win rate 54.5%, beating the market by -2.37 pts on average.

Top-quintile 6-month momentum

Pending

The stock ranks in the top 20% of the liquid US common-stock universe by 126-day adjusted return.

Momentum Trading Strategy: A 12-1 Momentum Backtest

16 times historically; 60-day forward avg +3.69%, win rate 56.2%, beating the market by -1.16 pts on average.

Filed revenue acceleration

Pending

TTM revenue growth is at least 10% and improved versus the prior filed quarter; event date is the SEC filing date.

14 times historically; 60-day forward avg +1.96%, win rate 57.1%, beating the market by -3.01 pts on average.

Method and limits

  • Returns use us_price:adj_close, adjusted for splits and dividends where available.
  • Excess returns use world_index:^GSPC as the S&P 500 benchmark proxy.
  • Quarterly fundamentals are aligned to SEC filing dates before daily valuation studies.
  • The promoted universe starts from active NYSE/NASDAQ common stocks, then applies price and dollar-volume gates.
  • Snapshot-only tables such as analyst consensus, DCF, us_ratios, and us_key_metrics are intentionally excluded from historical evidence.
  • Overlapping event windows are descriptive distributions, not independent samples.

This page is for historical data analysis and education only. It is not investment advice. Backtests and historical return distributions do not predict future performance; evaluate risk independently before trading.