Costar Group, Inc. stock: filings, catalysts and timeline

CSGP · Industry · Nasdaq · As of 4 Nov 2026

FundamentalsWhat is this?HideNot scored — outside AIR's $300M–$20B fundamentals band
How the business is doing on its own reported US-GAAP numbers — growth, margins, cash generation, balance-sheet strength, capital efficiency and dilution — compared with sector peers.
Source: SEC XBRL financial statements.
ValueWhat is this?HideToo few of the required measures on file
How the shares are priced against sector peers, against the company's own recent history, and against a simple cash-flow estimate, using the filing numbers and the current price. AIR shows this as a band, never as a target price.
Source: SEC XBRL financial statements and end-of-day prices.
News flowWhat is this?HideBalanced
What the company has documented recently: material 8-K events (contracts, deals, results, leadership changes) and FDA approvals, weighted by recency and type. A language model's reading of each 8-K helps classify whether it is positive or negative. Filings, not press or social media.
Source: SEC EDGAR 8-K filings and FDA approvals.
MomentumWhat is this?HideWatch
The longer-term market read: the trend in end-of-day prices, strength against the market and the sector, and trading volume over roughly the past three to twelve months. It is shown, never used to rank the Shortlist.
Source: End-of-day prices.
SafetyWhat is this?HideStrong
The risk side: leverage, liquidity, cash runway, dilution, revenue and margin swings, company size and pre-commercial status, negative 8-K events (including legal and regulatory ones), and share-price drawdown and volatility. Higher means fewer of those risk markers.
Source: SEC XBRL financial statements, SEC EDGAR 8-K filings and end-of-day prices.

DISCOVERY GAP

Filings show more traction than the tape reflects.

Low is the most common level — the cut-offs are fixed, and levels can shift as scores refresh.

What is this?

How far documented progress (News flow) runs ahead of market attention. Attention is measured from institutional holdings reported to the SEC, trading volume, price behaviour and how richly the shares are valued — not from social media or analyst ratings.

Source: SEC EDGAR filings (8-K and 13F), FDA approvals and end-of-day prices.

How levels work. The levels use fixed cut-offs, but market attention is ranked against the other ~1,800 companies AIR covers that day (valuation against the same sector). Documented progress counts filings from the past 18 months, newer ones weighing more; attention uses the latest quarter of institutional holdings, the last three to six months of trading, and six to twelve months of price behaviour. Many companies show a Low Gap or none at all — a gap needs filings that read more positively than neutral. A level can change from one day to the next as scores refresh and the other companies move.

Gap confidenceWhat is this?HideModerate 45/100How fully AIR could measure this Gap.
How fully AIR could measure both sides of the Discovery Gap: the documented progress (News flow) and market attention (Recognition). It takes the weaker of the two, and reads zero when either side has no measurement. It describes the data, not the company.
Evidence strengthWhat is this?HideModerate 36/100Support behind the full AIR read, not only the Gap.
How much data stands behind the whole AIR read — all five perspectives, not just the Discovery Gap. Each perspective reports how complete its inputs are, and these are combined in the same proportions as the AIR Score; a perspective AIR could not score adds nothing, so missing data lowers this figure. It describes the data, not the company.

This month at a glance

AIR Score™ change: +1Moved up +1 on new evidence.

Window31 Oct 2026 → 4 Nov 2026

Momentum+2Lifted the score this month.

Evidence timeline

Expected
Fri 26 Feb · expected 10-K
Last year filed 26 Feb 2026.
Thu 29 Apr · expected 10-Q
Last year filed 29 Apr 2026.
Filed
Wed 28 Oct · 10-Q
Quarterly report (10-Q), period ending 30 Sep 2026
Gap Low · 8 → High · 43
Progress is running ahead of attention.
The price trend weakened.
Tue 27 Oct · 8-K
8-K · Items 1.01, 2.02 — Material agreement
CoStar announced acquisition of Vexcel for $730M in cash to expand aerial imagery and geospatial data capabilities. Q3 2026 revenue hit record $952M (+14% YoY), adjusted EBITDA doubled to $229M, and full-year 2026 guidance raised to $820–840M adjusted EBITDA.
Gap Low · 9 → Very high · 45
Progress is running ahead of attention.
The price trend weakened.
Fri 21 Aug · 8-K
8-K filed 2026-08-21
Wed 29 Jul · 10-Q
Quarterly report (10-Q), period ending 27 Jul 2026
Tue 28 Jul · 8-K
8-K · Item 2.02 — Results of operations
Mon 13 Jul · 8-K
8-K · Item 5.02 — Director or officer change
Thu 25 Jun · 8-K
8-K · Item 5.02 — Director or officer change
Fri 29 May · 8-K
8-K · Item 1.01 — Material agreement
Wed 29 Apr · 10-Q
Quarterly report (10-Q), period ending 27 Apr 2026
Tue 28 Apr · 8-K
8-K · Item 2.02 — Results of operations
Mon 16 Mar · 8-K
8-K · Item 5.02 — Director or officer change
Thu 26 Feb · 10-K
Annual report (10-K), FY2026
Tue 24 Feb · 8-K
8-K · Item 2.02 — Results of operations
Fri 13 Feb · 8-K
8-K · Item 5.02 — Director or officer change
Wed 7 Jan · 8-K
8-K · Item 5.02 — Director or officer change

Earlier →

Solid dots: a filing AIR classified as material. Grey: routine. Hollow: expected, from last year's dates — not a forecast.

Ask AIR

What would change our view

A weaker balance sheet in the next filing cycle, a material regulatory setback, or attention arriving — which closes the gap by design would move the score, and the page would show which one did.

Research, not tips. No buy/sell recommendations, no price forecasts. Every score is derived from public filings and market data — figures round to whole numbers and refresh each trading day.