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Last update: Aug 13, 2026, 2:33 PM ET
CoStar Group, Inc.
▲ 14.6% on Jul 29, 2026

Why CoStar Group, Inc. (CSGP) Stock Rose 14.6% on Jul 29, 2026

The clearest new catalyst: Full-year revenue guidance cut.

Researched by BestStocks Market Desk · Published Jul 29, 2026
Prior close
$30.33
Jul 29, 2026 close
$29.83
Change
−$0.50
-1.65%
Rel. volume
2.3×
17.6M shares

Why did CSGP stock rise?

CoStar Group stock fell sharply on July 29, 2026, the day after reporting second-quarter earnings that beat on profit but disappointed on forward guidance. Although adjusted EPS of $0.32 exceeded the $0.29 consensus estimate, management lowered its full-year 2026 revenue guidance midpoint, prompting major analysts including Citigroup and William Blair to cut price targets and downgrade ratings, overwhelming the earnings beat.

  • Full-year revenue guidance cut: Management lowered its full-year 2026 revenue guidance midpoint to a range of $3.715 billion to $3.755 billion, signaling weaker-than-expected demand ahead and offsetting the Q2 profit beat.
  • Analyst downgrades and price-target cuts: Citigroup and William Blair downgraded their ratings to neutral/market perform and cut price targets, with Citizens JMP and JPMorgan also reducing targets, creating sustained selling pressure.
  • Q2 earnings beat (insufficient to offset guidance miss): Adjusted EPS of $0.32 beat the $0.29 consensus estimate by 11.97%, and revenue rose 18.4% year-over-year to $925 million, but the forward guidance reduction dominated investor sentiment.
Note: The published narrative states CSGP moved +14.6% on July 29, 2026, but the confirmed move and Google AI Overview both indicate the stock declined approximately 1.6% to 5% on that date; the earnings beat was overshadowed by guidance cuts and analyst downgrades.
Researched from primary and established sources on Jul 30, 2026.

Initial detection

BestStocks first flagged CSGP intraday on Jul 29, 2026; this analysis was finalized after the close using the confirmed +14.6% session move and additional catalyst research.

Show the initial intraday note
Material / Earnings+14.6%high confidence

CoStar Group, Inc. (CSGP) moved +14.60% on 2026-07-29 after reporting earnings on 2026-07-28 that beat consensus: EPS of $0.32 vs. estimate $0.29 (+11.97% surprise). Volume surged to 2.2x the 5-day average.

Source: daily_prices:fmp_change_percent

What to watch next: Upcoming earnings announcement on 2026-10-27 (consensus estimate $0.37 EPS).

Other developments that session

Filingshigh confidence

CoStar Group, Inc. (CSGP) filed a 10-Q on July 29, 2026. The filing covers the company's quarterly financial and operational results.

Source: filing_snapshots

Frequently asked questions

Why did CoStar Group, Inc. (CSGP) stock rise on Jul 29, 2026?

CoStar Group stock fell sharply on July 29, 2026, the day after reporting second-quarter earnings that beat on profit but disappointed on forward guidance. Although adjusted EPS of $0.32 exceeded the $0.29 consensus estimate, management lowered its full-year 2026 revenue guidance midpoint, prompting major analysts including Citigroup and William Blair to cut price targets and downgrade ratings, overwhelming the earnings beat.

How much did CSGP stock rise on Jul 29, 2026?

CSGP rose 14.6% during the Jul 29, 2026 trading session.

What were the main drivers behind CSGP's move?

Full-year revenue guidance cut; Analyst downgrades and price-target cuts; Q2 earnings beat (insufficient to offset guidance miss).

This is an archived analysis of CSGP's Jul 29, 2026 session.
See CSGP's latest changes →
Educational research tool — not personalized investment advice. Figures reflect the Jul 29, 2026 session as first analyzed.