CoStar Group climbs as investors reassess the setup ahead of third-quarter results

CoStar Group (CSGP) is up 7.8% today. Here is some analysis on what might have caused this price movement. ([chartexchange.com](https://chartexchange.com/symbol/nasdaq-csgp/news/?date=2026-09-14))

Analysis: The most likely driver appears to be a sentiment rebound ahead of CoStar Group’s October 27, 2026 third-quarter earnings report, with investors revisiting the company after a sharp selloff earlier this year. A fresh Homes.com housing-market update and signs that short interest had already come down may have added support, but there does not appear to be a single major same-day corporate announcement explaining the full move. ([investors.costargroup.com](https://investors.costargroup.com/events-presentations))

Details:

CoStar Group has scheduled its third-quarter 2026 earnings call for October 27, giving the market a near-term catalyst to reprice expectations. ([investors.costargroup.com](https://investors.costargroup.com/events-presentations))

The company’s latest Homes.com report, released October 21, highlighted rising home prices even as sales slowed and inventory expanded, keeping attention on the residential business. ([costargroup.gcs-web.com](https://costargroup.gcs-web.com/news))

In second-quarter results released in July, revenue rose 18% year over year to $925 million, adjusted EBITDA more than doubled, and the residential segment turned adjusted EBITDA positive, which may be helping investors look past the prior guidance cut. ([investors.costargroup.com](https://investors.costargroup.com/static-files/c276d649-2cad-4a70-b415-df6f179c9499?utm_source=openai))

Short interest had fallen to about 14.8 million shares by mid-September, suggesting part of today’s move could also reflect positioning and momentum rather than a single new fundamental event. ([marketbeat.com](https://www.marketbeat.com/stocks/NASDAQ/CSGP/short-interest/?utm_source=openai))

Sources:

CoStar Group, SEC, MarketBeat, Quiver Quantitative

Disclaimer: This price movement analysis was generated with the help of AI. Please double-check the information provided for mistakes.

$CSGP Insider Trading Activity

$CSGP insiders have traded $CSGP stock on the open market 5 times in the past 6 months. Of those trades, 3 have been purchases and 2 have been sales.

Here’s a breakdown of recent trading of $CSGP stock by insiders over the last 6 months:

ANDREW C FLORANCE (Founder and CEO) has made 3 purchases buying 154,730 shares for an estimated $5,004,045 and 0 sales.
CYNTHIA CAMMETT CANN (Chief Accounting Officer) sold 4,788 shares for an estimated $147,374
JOHN W HILL sold 3,500 shares for an estimated $105,735

To track insider transactions, check out Quiver Quantitative's insider trading dashboard. You can access data on insider stock transactions through the Quiver Quantitative API insider transaction endpoint.

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$CSGP Hedge Fund Activity

We have seen 386 institutional investors add shares of $CSGP stock to their portfolio, and 423 decrease their positions in their most recent quarter.

Here are some of the largest recent moves:

PRINCIPAL FINANCIAL GROUP INC removed 13,905,398 shares (-78.6%) from their portfolio in Q2 2026, for an estimated $393,800,871
AQR CAPITAL MANAGEMENT LLC added 7,182,770 shares (+568.8%) to their portfolio in Q2 2026, for an estimated $203,416,046
EDGEPOINT INVESTMENT GROUP INC. added 5,950,002 shares (+inf%) to their portfolio in Q2 2026, for an estimated $168,504,056
BAMCO INC /NY/ added 5,312,588 shares (+32.6%) to their portfolio in Q2 2026, for an estimated $150,452,492
JPMORGAN CHASE & CO added 4,939,994 shares (+inf%) to their portfolio in Q2 2026, for an estimated $139,900,630
GOLDMAN SACHS GROUP INC removed 4,116,328 shares (-44.5%) from their portfolio in Q2 2026, for an estimated $116,574,408
POLEN CAPITAL MANAGEMENT LLC removed 3,811,054 shares (-30.3%) from their portfolio in Q2 2026, for an estimated $107,929,049

To track hedge funds' stock portfolios, check out Quiver Quantitative's institutional holdings dashboard. You can access data on hedge funds moves and 13F filings through the Quiver Quantitative API 13F endpoint.

$CSGP Congressional Stock Trading

Members of Congress have traded $CSGP stock 1 times in the past 6 months. Of those trades, 1 have been purchases and 0 have been sales.

Here’s a breakdown of recent trading of $CSGP stock by members of Congress over the last 6 months:

REPRESENTATIVE GILBERT RAY CISNEROS, JR. purchased up to $15,000 on 08/19.

To track congressional stock trading, check out Quiver Quantitative's congressional trading dashboard. You can access data on congressional stock trades through the Quiver Quantitative API Congress trades endpoint.

$CSGP Price Targets

Multiple analysts have issued price targets for $CSGP recently. We have seen 10 analysts offer price targets for $CSGP in the last 6 months, with a median target of $45.5.

Here are some recent targets:

George Tong from Goldman Sachs set a target price of $46.0 on 06/25/2026
Jason Haas from Wells Fargo set a target price of $26.0 on 06/24/2026
Michael Rindos from Benchmark set a target price of $45.0 on 06/04/2026
Heather Balsky from B of A Securities set a target price of $37.0 on 05/19/2026
Brett Huff from Stephens & Co. set a target price of $42.0 on 05/04/2026
Jake Fuller from BTIG set a target price of $55.0 on 04/29/2026
Mayank Tandon from Needham set a target price of $50.0 on 04/29/2026

This article is not financial advice. See Quiver Quantitative's disclaimers for more information. Note that there may be inaccuracies due to mistakes in ticker-mapping, and other anomalies.