Why is CSGP Down Today?

CSGP
$30.43
▼ -3.58% ($-1.09)
Last updated: Sep 16, 2026 8:35 PM ET (581 min ago)

About CoStar Group Inc

CoStar Group is a leading provider of commercial real estate data and marketplace listing platforms. Its data offering contains in-depth analytical information on over 5 million commercial real estate properties related to various subsectors including office, retail, hotels, multifamily, healthcare,...

Sector: SERVICES-BUSINESS SERVICES, NEC
Market Cap: $35.37B
Forward P/E: 46.4
52-Week Range: $25.89 - $90.72
Employees: 6,152

Overall Confidence: 65%

65% Confident

Based on news, social sentiment, options activity, and sector analysis

SECTOR 65% Confidence
🎯 SERVICES-BUSINESS SERVICES, NEC sector moving together
This appears to be a sector-wide move. The SERVICES-BUSINESS SERVICES, NEC sector is down 1.1% on average.

✅ Move Confirmation

LOW VOLUME 0.3x average volume

UNCONFIRMED - Low volume suggests this move may not be sustainable.

📍 Sector Context

SERVICES-BUSINESS SERVICES, NEC sector: -1.1%

This appears to be a sector-wide move. Most SERVICES-BUSINESS SERVICES, NEC stocks are moving in the same direction.

Market Comparison

CSGP is significantly underperforming the market (-3.1% vs SPY)
S&P 500
SPY
-0.44%
Nasdaq 100
QQQ
+0.03%
CSGP
This Stock
-3.58%
vs S&P 500: -3.14%
vs Nasdaq: -3.61%

📊 What Happens Next?

Probability Analysis

45% chance this move continues in the next 1-3 days

Expected Range

Based on historical patterns and options pricing, CSGP is expected to trade between:
$29.52 - $31.04

Key Level to Watch

$28.91 support
Watch for breakdown below $30.43

🔔 Get CSGP Alerts

We'll notify you when CSGP's trend changes or a new signal fires.

Last updated: Sep 16, 2026 8:35 PM (581 minutes ago)
Data refreshes every 30 minutes during market hours

Options Market Insight

Bearish
Options Sentiment
2.06
Put/Call Ratio
66.3%
Implied Volatility
Call Volume: 6,506
Put Volume: 13,377
Total: 19,883
Unusual Activity: $30 PUT (4,436 vol) $30 PUT (4,268 vol)

Historical Context

CSGP has moved more than 3.0% down on 33 occasions in the past year.

51.5%
Continuation Rate
17/33 times continued down
+0.05%
Avg Next Day Change
After similar down moves
Last similar move: Aug 20, 2026 (-4.4%) → Next day: 0%

Frequently Asked Questions

Why is CSGP stock down today?

This appears to be a sector-wide move. The SERVICES-BUSINESS SERVICES, NEC sector is down 1.1% on average.

Is CSGP stock a buy or sell right now?

Based on current analysis, CSGP shows 65% confidence in today's move. Volume is low which does not confirm the trend. View full buy/sell analysis →

What is the CSGP stock price target?

CSGP is currently trading at $30.43. Based on today's momentum, the expected short-term range is $29.52 - $31.04. See long-term price prediction →

Will CSGP stock continue falling?

Our analysis shows a 45% probability that CSGP's move continues in the next 1-3 days. Key level to watch: $28.91 (support).

Is CSGP stock oversold or overbought?

CSGP's RSI (Relative Strength Index) is currently at 46.0. This shows bearish momentum - the stock has negative momentum but isn't oversold yet.

What is the momentum for CSGP stock?

CSGP's 10-day momentum indicator is at -1.62. Negative momentum - the stock has mild downward pressure which may continue short-term.

Is CSGP outperforming or underperforming the market?

CSGP (-3.58%) is currently significantly underperforming the market (-3.1% vs SPY). Today, the S&P 500 (SPY) is down -0.44%, and Nasdaq (QQQ) is up 0.03%.

What does MACD indicate for CSGP?

CSGP's MACD (-0.1) is currently below the signal line (0.04), indicating a bearish trend. This technical signal suggests selling pressure is dominant. The trend strength (ADX: 13.7) is weak.

Is CSGP in an uptrend or downtrend?

Based on moving average analysis, CSGP is in a mixed/transitional trend. The price and moving averages are not clearly aligned, suggesting a potential trend change or consolidation phase. 20-day SMA: $31.54, 50-day SMA: $30.44.

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