Russell Investments Group Ltd. Boosts Holdings in CoStar Group, Inc. $CSGP

Russell Investments Group Ltd. grew its stake in shares of CoStar Group, Inc. (NASDAQ:CSGP) by 6.4% during the third quarter, HoldingsChannel reports. The firm owned 475,423 shares of the technology company’s stock after purchasing an additional 28,432 shares during the quarter. Russell Investments Group Ltd.’s holdings in CoStar Group were worth $40,108,000 at the end of the most recent quarter.

Several other hedge funds and other institutional investors also recently modified their holdings of CSGP. Vanguard Group Inc. raised its stake in CoStar Group by 1.8% in the third quarter. Vanguard Group Inc. now owns 70,056,441 shares of the technology company’s stock worth $5,910,662,000 after buying an additional 1,208,958 shares in the last quarter. Bamco Inc. NY grew its holdings in shares of CoStar Group by 3.4% during the 2nd quarter. Bamco Inc. NY now owns 19,679,935 shares of the technology company’s stock worth $1,582,267,000 after acquiring an additional 647,413 shares during the period. State Street Corp grew its holdings in shares of CoStar Group by 0.9% during the 2nd quarter. State Street Corp now owns 17,732,968 shares of the technology company’s stock worth $1,425,731,000 after acquiring an additional 158,539 shares during the period. Geode Capital Management LLC raised its position in shares of CoStar Group by 2.4% in the 2nd quarter. Geode Capital Management LLC now owns 12,357,840 shares of the technology company’s stock worth $989,905,000 after acquiring an additional 290,404 shares in the last quarter. Finally, Massachusetts Financial Services Co. MA raised its position in shares of CoStar Group by 12.5% in the 3rd quarter. Massachusetts Financial Services Co. MA now owns 7,406,788 shares of the technology company’s stock worth $624,911,000 after acquiring an additional 821,111 shares in the last quarter. Hedge funds and other institutional investors own 96.60% of the company’s stock.

Analyst Ratings Changes

Several equities research analysts recently weighed in on the company. William Blair restated an “outperform” rating on shares of CoStar Group in a research report on Tuesday, March 3rd. Weiss Ratings reiterated a “sell (d)” rating on shares of CoStar Group in a report on Monday, December 29th. Royal Bank Of Canada lowered their price objective on CoStar Group from $75.00 to $57.00 and set a “sector perform” rating for the company in a research report on Wednesday, February 25th. Robert W. Baird set a $73.00 target price on shares of CoStar Group in a report on Wednesday, February 25th. Finally, Zacks Research raised shares of CoStar Group from a “strong sell” rating to a “hold” rating in a research report on Monday. One investment analyst has rated the stock with a Strong Buy rating, eleven have issued a Buy rating, five have assigned a Hold rating and two have issued a Sell rating to the company. Based on data from MarketBeat, CoStar Group currently has an average rating of “Moderate Buy” and an average price target of $73.35.

Key Stories Impacting CoStar Group

Here are the key news stories impacting CoStar Group this week:

• Positive Sentiment: Director Louise Sams purchased 1,000 shares, signaling insider confidence. Insider Form 4
• Positive Sentiment: Zacks upgraded CSGP from “strong sell” to “hold”, a mild vote of support from an independent research shop. Zacks Research
• Positive Sentiment: Management has a $1.5B buyback authorization (announced Jan. 7), which can support the stock and offset selling pressure.
• Neutral Sentiment: CoStar has publicly pushed back on D. E. Shaw’s claims with corrections and rebuttals — this clarifies the company’s position but doesn’t eliminate investor questions. CoStar Corrects D.E. Shaw Claims Investing.com Coverage
• Neutral Sentiment: Analyst coverage remains mixed: consensus is a “Moderate Buy” with an average target ~ $73, but several firms have cut targets recently — keeps outlook mixed.
• Neutral Sentiment: Short-interest reporting shows inconsistent feeds (some notices list 0 shares due to data errors). Investors should rely on the verified Feb 27 filing for accurate figures.
• Negative Sentiment: Activist investor D. E. Shaw released an open letter criticizing CoStar’s decision to reconfigure reporting segments, saying it reduces transparency and masks underperformance (Homes.com focus). That letter is driving headline risk and investor concern. D. E. Shaw Open Letter
• Negative Sentiment: Short interest rose materially in late February to ~26.15M shares (up ~35% vs. mid‑Feb), about 6.3% of shares outstanding and ~3.7 days-to-cover — increased bearish positioning can amplify downside pressure.
• Negative Sentiment: Critical media pieces (e.g., coverage questioning Homes.com performance) add reputational risk and may amplify selling amid the activist campaign. TheStreet Homes.com Critique

Insider Buying and Selling

In related news, Director Louise S. Sams bought 1,000 shares of the business’s stock in a transaction dated Friday, March 6th. The shares were purchased at an average cost of $48.36 per share, with a total value of $48,360.00. Following the completion of the purchase, the director owned 20,409 shares in the company, valued at approximately $986,979.24. The trade was a 5.15% increase in their position. The purchase was disclosed in a document filed with the SEC, which can be accessed through this hyperlink. Company insiders own 1.09% of the company’s stock.

CoStar Group Price Performance

CSGP stock opened at $45.34 on Thursday. The company has a debt-to-equity ratio of 0.12, a quick ratio of 2.84 and a current ratio of 2.84. The firm has a 50 day moving average price of $55.23 and a 200-day moving average price of $68.47. CoStar Group, Inc. has a 52-week low of $43.16 and a 52-week high of $97.43. The firm has a market capitalization of $19.03 billion, a price-to-earnings ratio of 4,538.54, a PEG ratio of 1.24 and a beta of 0.89.

CoStar Group (NASDAQ:CSGP) last posted its quarterly earnings results on Tuesday, February 24th. The technology company reported $0.31 earnings per share for the quarter, topping the consensus estimate of $0.27 by $0.04. CoStar Group had a return on equity of 2.53% and a net margin of 0.23%.The company had revenue of $900.00 million for the quarter, compared to the consensus estimate of $892.22 million. During the same quarter in the prior year, the business posted $0.26 EPS. The firm’s quarterly revenue was up 26.9% compared to the same quarter last year. CoStar Group has set its Q1 2026 guidance at 0.160-0.190 EPS. Equities research analysts forecast that CoStar Group, Inc. will post 0.94 EPS for the current fiscal year.

CoStar Group declared that its Board of Directors has initiated a share buyback program on Wednesday, January 7th that permits the company to repurchase $1.50 billion in outstanding shares. This repurchase authorization permits the technology company to buy up to 5.3% of its stock through open market purchases. Stock repurchase programs are often an indication that the company’s board of directors believes its stock is undervalued.

CoStar Group Company Profile

CoStar Group, Inc is a provider of information, analytics and online marketplaces for the commercial real estate industry. The company gathers property-level data, builds market analytics and supplies research tools used by brokers, owners, lenders, investors and other real estate professionals to evaluate markets, track inventory and manage listings. CoStar’s offerings are delivered primarily through subscription-based platforms that combine proprietary databases, mapping and workflow applications to support decision-making across the property life cycle.

In addition to its core CoStar research service, the company operates prominent online listing and marketing platforms that connect buyers, sellers, tenants and brokers.