COSTAR GROUP, INC.
At today's price, COSTAR GROUP, INC. (CSGP) is priced for +15.1% growth. boothcheck doesn't publish a fair value or a price target; it shows what the price assumes, so you can judge whether that bar is too high. Built from SEC EDGAR filings.
• CoStar runs two businesses inside one company: a highly profitable commercial real estate data franchise sold on auto-renewing subscriptions, and a money-losing residential land-grab built around Homes.com that is consuming the profits the commercial side throws off. • The defining number is the margin split: in the first quarter of 2026 the commercial segment earned a 34% adjusted margin while the residential segment lost money, so the consolidated profit looks far worse than the core busines
Is CSGP overvalued? See what's priced in →
766 institutional managers reported holding CSGP in 13F filings for the quarter ended 2026-03-31. 113 opened new positions that quarter. Held by Vanguard Group, BlackRock, State Street, among others. On the short side, 17.1M shares were sold short as of the 2026-06-15 count, about 4% of shares outstanding (2.4 days of typical volume to cover).
Quarterly 13F filings arrive up to 45 days after quarter end, so the picture is never current (filed through 2026-05-29). Nothing here is investment advice.
CSGP's share count grew 5.3% over the past five years even with $1.01B spent on repurchases. It pays no dividend. Cash returned over the past three years: $1.01B in repurchases.
Share counts are split-adjusted; repurchase totals are gross of share issuance. Nothing here is investment advice.
Open-market insider buys at CSGP over the trailing three years: 2024: 1 buy totaling $1.10M; 2026: 4 buys totaling $3.48M. 18 officers and directors are on file.
Code P open-market purchases from SEC Form 4 filings, non-derivative, excluding scheduled 10b5-1 plans. Nothing here is investment advice.
CSGP's recent reports: the day-one move, then what the following quarter actually did.
| report | day one | next quarter |
|---|---|---|
| 2023-07-27 | -6.8% | -4.2% |
| 2023-10-26 | -3.2% | +24.2% |
| 2024-02-23 | +1.5% | +9.3% |
| 2024-04-25 | +7.8% | -17.8% |
Day-one is the close-to-close move around the filing. Nothing here is investment advice.
CSGP's latest 8-K filings: 2026-07-13 (items 5.02, 7.01, 9.01); 2026-06-25 (items 5.02, 5.07, 7.01, 9.01); 2026-05-29 (items 1.01, 7.01, 9.01); 2026-04-28 (items 2.02, 7.01, 9.01); 2026-03-16 (items 5.02, 7.01).
Item codes are the SEC's own classification of what each report discloses. Nothing here is investment advice.
Last analyzed: June 27, 2026
Each week boothcheck ranks the stocks whose prices are betting on the most. Read the most stretched bets archive →
boothcheck is also on Android. Get the app on Google Play →
For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.