CSGPCoStar Group, Inc.Real Estate · Real Estate - Servicesas of 2026-09-16
Horizon

Issued 2026-09-16 at $30.36 · now $30.36 (2026-09-16, +0.0% since)

Based on its own history, a month from the 2026-09-16 close, CSGP has typically landed between $25.86 and $34.50 — a range of −14.8% to +13.6% from the issuance price $30.36.

Range of outcomes in historically similar periods — not a price prediction. Ranges are scored publicly on /methodology.
  • Actual close
  • Typical path (median)
  • Middle 50% of outcomes
  • 90% range

4,685 overlapping 1 month windows · 2008-01-02 – 2026-08-17 · basis climatology · forecast (batch). Probability up 53.9% (90% CI 51.7–56.1%, ≈1,408 obs).

The cone is anchored at the 2026-09-16 issuance close ($30.36) — the price the forecast resolves against on 2026-10-15, not the latest close. The drawn path shape is illustrative (bands widen with √t); every labeled number is real — the anchor, the scored batch p90/IQR endpoints, and the typical move.

Where CSGP has typically landed a month from the 2026-09-16 close of $30.36 — the range is history, not a prediction.

$25.86worst · -14.8%$34.5best · +13.6%
  • now $30.36 (+0.0%)
  • typicalThe typical outcome — half of similar past periods did better and half did worse (not an average, so a few wild periods don't skew it). $29.91 (-1.5%)
  • middle 50%The central range of outcomes — half of similar past periods landed inside it, a quarter finished above, a quarter below. $28.17–$31.66
  • 90% rangeA nine-in-ten range — in about nine of every ten similar past periods the outcome stayed within these bounds. $25.86–$34.5
Actual 1-month windows behind the coneiEvery overlapping 1-month window in this security's own price history was ranked by realized return; shown are the 3 worst and 3 best of 4,685 windows spanning 2008-01-02 to 2026-09-16. Not cherry-picked — these are the extremes of the full sample. Max drop / max rise are the deepest and highest points reached within each window. See /methodology.
StartReturnMax dropMax rise
3 worst
2008-09-26−39.8%−39.8%+0.0%
2008-09-25−38.1%−38.1%+0.0%
2008-09-24−35.5%−35.5%+0.0%
3 best
2009-03-05+31.2%−3.2%+31.2%
2009-03-09+30.6%+0.0%+35.5%
2022-07-14+29.5%+0.0%+29.5%

4,685 overlapping windows · 2008-01-02 – 2026-09-16 · not cherry-picked

Fundamentals iCompany financials — revenue, earnings, margins — from the newest filings shown, each carried with its date.iAs-reported figures and standard ratios from FMP, as of 2026-07-25. Revenue, net income and free cash flow can toggle annual or quarterly; margin, ROE and debt-to-equity are shown by fiscal year. We report the figures and the trend — no target price and no over/under-valued call. More on /methodology.

$11.3B
market cap
$0.06
EPS (TTM)
475.3
P/E (TTM)
2026-07-28
next earnings
Revenue$3.2B
'20'25
Net income$7M
'20'25
Free cash flow$41M
'20'25
Net margin · by yr0.2%
'20'25
ROE · by yr0.1%
'20'25
Debt / equity · by yr0.14
'20'25

Fair value — three views iIndependent reference estimates of worth (a cash-flow model, peer multiples, analyst targets), shown as separate views — not a single verdict.

iThree independent estimates of per-share value, each by a different method and each with its own assumptions: a discounted-cash-flow intrinsic value, a peer comparable (the median trailing P/E of 29 sector peers times this company's trailing EPS), and the analyst price-target consensus. They routinely disagree — that gap is the point. We show the three marks and the current price; we do not blend them into a single number or call the stock over- or under-valued. Marks as of the latest capture. More on /methodology.
now $30.36$-3.29$72.21
  • DCF (intrinsic)$24.32
  • Peer P/E × EPS · sector median 32.9× · n=29$1.91
  • Analyst target · range $26.00–$67.00$44.00
  • Current price · last close 2026-09-16$30.36

Seasonality · by month iHow this security has tended to do in each calendar month historically — a frequency, never a prediction.

iFor each calendar month, the share of years this security closed higher than the month before, and the average month-over-month return, over ~19 years of its own price history. Cells are shaded by average return. This is historical frequency, not a prediction — no month is a signal.
Jan
44%
−1.0%
n=18
Feb
53%
−0.7%
n=19
Mar
68%
+3.7%
n=19
Apr
68%
+3.5%
n=19
May
47%
−0.9%
n=19
Jun
53%
+2.6%
n=19
Jul
68%
+5.7%
n=19
Aug
32%
−1.3%
n=19
Sep
47%
+0.2%
n=19
Oct
44%
−0.8%
n=18
Nov
78%
+3.8%
n=18
Dec
50%
−0.1%
n=18

Up-frequency and average month-over-month return · historical frequency, not a prediction

Reported insider & political trades

Every Form 4 the people closest to this company have filed with the SEC — plotted against the share price, aggregated by month, and shown with the gap between when each trade happened and when it was disclosed. A public record, not advice.

Share price & reported tradesMonthly open-market valueReporting lag — trade date to filing date2026-092026-082026-072026-062026-052026-042026-032026-022026-012025-122025-112025-102025-092025-08$91$272026-08-07: 1 insider sale, $147K — Cann Cynthia Cammett2026-08-05: 1 insider sale, $106K — Hill John W2026-08-04: 1 insider purchase, $2.5M — FLORANCE ANDREW C2026-05-01: 2 insider purchases, $2.5M — FLORANCE ANDREW C …2026-03-06: 1 insider purchase, $48K — Sams Louise S2026-03-02: 2 insider purchases, $952K — SAINT FREDERICK G., Glaser Rachel C2026-02-27: 1 insider purchase, $2.5M — FLORANCE ANDREW C2025-11-13: 2 insider sales, $281K — Hill John W, Cann Cynthia Cammett2025-08-28: 1 insider sale, $2.3M — SAINT FREDERICK G.2025-08: 1 open-market sale, $2.3M2025-11: 2 open-market sales, $281K2026-02: 1 open-market purchase, $2.5M2026-03: 3 open-market purchases, $1000K2026-05: 2 open-market purchases, $2.5M2026-08: 1 open-market purchase, $2.5M2026-08: 2 open-market sales, $253K↑ buys↓ salesofficer Cann Cynthia Cammett — Sale on 2026-08-07, filed 3 days after the tradedirector Hill John W — Sale on 2026-08-05, filed 5 days after the tradedirector FLORANCE ANDREW C — Purchase on 2026-08-04, filed 1 day after the tradedirector FLORANCE ANDREW C — Purchase on 2026-05-01, filed 3 days after the tradedirector FLORANCE ANDREW C — Purchase on 2026-05-01, filed 3 days after the tradedirector Sams Louise S — Purchase on 2026-03-06, filed 3 days after the tradeofficer SAINT FREDERICK G. — Purchase on 2026-03-02, filed 1 day after the tradedirector Glaser Rachel C — Purchase on 2026-03-02, filed 1 day after the tradedirector FLORANCE ANDREW C — Purchase on 2026-02-27, filed 3 days after the tradedirector Hill John W — Sale on 2025-11-13, filed 4 days after the tradeofficer Cann Cynthia Cammett — Sale on 2025-11-13, filed 4 days after the tradeofficer SAINT FREDERICK G. — Sale on 2025-08-28, filed 5 days after the trade
DatePersonRoleActionShares @ priceValueOwnership Δvs S&P 1mvs S&P 6mOwned afterFiling
2026-08-07Cann Cynthia CammettofficerSale4,788 @ $30.78$147K−20.3% of holding+1.3%not yet — horizon still open18,822Form 4 · filed 3 days after the trade
2026-08-05Hill John WdirectorSale3,500 @ $30.21$106K−13.2% of holding+4.4%not yet — horizon still open22,993Form 4 · filed 5 days after the trade
2026-08-04FLORANCE ANDREW CdirectorPurchase83,300 @ $29.89$2.5M+4.8% of holding+5.6%not yet — horizon still open1,806,165Form 4 · filed 1 day after the trade
2026-05-01FLORANCE ANDREW CdirectorPurchase68,330 @ $35.17$2.4M+4.1% of holding−8.5%not yet — horizon still open1,719,765Form 4 · filed 3 days after the trade
2026-05-01FLORANCE ANDREW CdirectorPurchase3,100 @ $35.82$111K+0.2% of holding−8.5%not yet — horizon still open1,722,865Form 4 · filed 3 days after the trade
2026-03-06Sams Louise SdirectorPurchase1,000 @ $48.36$48K+5.2% of holding−16.7%−51.3%20,409Form 4 · filed 3 days after the trade
2026-03-02SAINT FREDERICK G.officerPurchase20,000 @ $45.33$907K+7.7% of holding−5.7%−41.3%279,851Form 4 · filed 1 day after the trade
2026-03-02Glaser Rachel CdirectorPurchase1,000 @ $44.94$45K+31.7% of holding−5.7%−41.3%4,157Form 4 · filed 1 day after the trade
2026-02-27FLORANCE ANDREW CdirectorPurchase55,720 @ $44.52$2.5M+3.6% of holding−0.8%−40.6%1,586,866Form 4 · filed 3 days after the trade
2025-11-13Hill John WdirectorSale2,250 @ $68.68$155K−11.0% of holding−8.3%−62.1%18,231Form 4 · filed 4 days after the trade
2025-11-13Cann Cynthia CammettofficerSale1,841 @ $68.79$127K−7.3% of holding−8.3%−62.1%23,211Form 4 · filed 4 days after the trade
2025-08-28SAINT FREDERICK G.officerSale25,000 @ $90.33$2.3M−7.9% of holding−9.3%−56.4%293,103Form 4 · filed 5 days after the trade
2025-07-28SAINT FREDERICK G.officerSale25,000 @ $93.23$2.3M−7.3% of holding−5.6%−38.9%319,539Form 4 · filed 1 day after the trade
2025-07-28Cann Cynthia CammettofficerSale2,033 @ $92.85$189K−7.3% of holding−5.6%−38.9%25,771Form 4 · filed 1 day after the trade
2025-06-11SAINT FREDERICK G.officerSale25,000 @ $81.10$2.0M−6.8% of holding+0.5%−32.0%344,539Form 4 · filed 1 day after the trade
2025-03-10Cann Cynthia CammettofficerSale1,749 @ $79.90$140K−5.6% of holding+2.8%−6.4%29,456Form 4 · filed 4 days after the trade
2024-12-10Hill John WdirectorSale2,735 @ $76.76$210K−13.5% of holding−6.1%+6.5%17,499Form 4 · filed 2 days after the trade
2024-11-11Cann Cynthia CammettofficerSale1,310 @ $76.85$101K−4.7% of holding+0.8%+1.0%26,485Form 4 · filed 123 days after the trade
2024-07-31Cann Cynthia CammettofficerSale1,200 @ $78.20$94K−4.1% of holding−2.5%−11.8%27,795Form 4 · filed 226 days after the trade

The vs-S&P columns are a labeled look-back on what the stock did after each filing, measured against the index over the same window. Descriptive history, not a claim about the person or a reason to trade.

115 award / exercise / gift records — not counted as purchases

Awards, option exercises, gifts and tax-withholding disposals are shown separately and never counted as open-market purchases or sales — they carry no conviction information.

DatePersonRoleActionSharesOwned afterFiling
2026-08-01SAINT FREDERICK G.officerWithheld for tax1,436278,415Form 4
2026-08-01Cann Cynthia CammettofficerWithheld for tax1,07723,610Form 4
2026-07-31Cann Cynthia CammettofficerAward / grant26,07826,078Form 4
2026-07-31Rossmann Robin JackofficerAward / grant34,77134,771Form 4
2026-07-01LOWN CHRISTIAN M.officerWithheld for tax5,597129,653Form 4
2026-06-23BERISFORD JOHN LdirectorAward / grant8,26211,235Form 4
2026-06-23Hill John WdirectorAward / grant8,26226,493Form 4
2026-06-23Musslewhite Robert WdirectorAward / grant8,26226,539Form 4
2026-06-23Glaser Rachel CdirectorAward / grant8,26212,419Form 4
2026-06-23McCarthy Christine MdirectorAward / grant8,26211,585Form 4
2026-06-23Brunner Angelique G.directorAward / grant8,26218,428Form 4
2026-06-23Sams Louise SdirectorAward / grant8,26228,671Form 4
2026-06-15Cann Cynthia CammettofficerWithheld for tax46124,687Form 4
2026-03-15SIMURO FRANKofficerWithheld for tax11,107414,491Form 4
2026-03-15Ruggles LisaofficerWithheld for tax2,977174,915Form 4
2026-03-15DESMARAIS MICHAEL JofficerWithheld for tax2,87387,725Form 4
2026-03-15Cann Cynthia CammettofficerWithheld for tax1,19425,148Form 4
2026-03-15Boxer GeneofficerWithheld for tax42895,517Form 4
2026-03-10FLORANCE ANDREW CdirectorAward / grant124,1621,651,435Form 4
2026-03-10Boxer GeneofficerAward / grant21,92095,945Form 4
2026-03-10LOWN CHRISTIAN M.officerAward / grant12,268135,250Form 4
2026-03-10Cann Cynthia CammettofficerAward / grant4,37426,342Form 4
2026-03-10Boxer GeneofficerAward / grant21,92095,945Form 4
2026-03-10DESMARAIS MICHAEL JofficerAward / grant17,67690,598Form 4
2026-03-10Cann Cynthia CammettofficerAward / grant4,37426,342Form 4
2026-03-10DESMARAIS MICHAEL JofficerAward / grant17,67690,598Form 4
2026-03-10FLORANCE ANDREW CdirectorAward / grant124,1621,651,435Form 4
2026-03-10LOWN CHRISTIAN M.officerAward / grant12,268135,250Form 4
2026-03-01FLORANCE ANDREW CdirectorWithheld for tax59,5931,527,273Form 4
2026-03-01SIMURO FRANKofficerWithheld for tax18,702425,598Form 4
2026-03-01SAINT FREDERICK G.officerWithheld for tax11,096259,851Form 4
2026-03-01Ruggles LisaofficerWithheld for tax8,931177,892Form 4
2026-03-01LOWN CHRISTIAN M.officerWithheld for tax7,175122,982Form 4
2026-03-01DESMARAIS MICHAEL JofficerWithheld for tax6,35372,922Form 4
2026-03-01Boxer GeneofficerWithheld for tax4,54774,025Form 4
2026-03-01Cann Cynthia CammettofficerWithheld for tax1,38521,968Form 4
2026-02-27Ruggles LisaofficerAward / grant28,19728,197Form 4
2026-02-27Boxer GeneofficerAward / grant26,88826,888Form 4
2026-02-27SIMURO FRANKofficerAward / grant52,86952,869Form 4
2026-02-27LOWN CHRISTIAN M.officerAward / grant39,65239,652Form 4

Source: SEC Form 4 filings. Each row links to its original filing.

Across 2012–2021, stocks where a CEO, C-suite officer, or director had recently made an open-market common-stock purchase ran about +28 bp per month above the universe average (n=34,268 stock-weeks). A historical tendency, not a prediction.

Congressional disclosures iStock trades disclosed by members of Congress for this company, by the date they were filed.iDisclosures shown as facts. A purchase “cluster” (≥2 members of Congress filing a buy within 90 days) has historically preceded modestly higher forward returns — and it persisted out-of-sample, though it roughly halved after 2021 (see below). A descriptive historical tendency, not a signal to trade and not used in our forecast. See /methodology.

As of 2026-09-16 · point-in-time by filed date

Purchase clusters · 2015–2021 (dev)+45 bp/mo vs baseline · up-rate 59.3% vs 57.3% · n=31,607 cluster ticker-weeks
Purchase clusters · 2022–2026 (out-of-sample)+32 bp/mo vs baseline · up-rate 54.0% vs 53.3% · n=27,793

A cluster = ≥2 members of Congress filing a purchase within 90 days. The historical tilt persisted after 2021 but roughly halved (+45 → +32 bp/mo forward 1-month vs the S&P 500 weekly-grid baseline). Descriptive historical tendency — not a signal to trade, and not used in our forecast (audition-log 2026-07-27, recomputed 2026-09-08).

'23 Q'24 Q'24 Q'24 Q'25 Q'25 Q'25 Q'25 Q'26 Q'26 Q'26 Qpurchases ▲ / sales ▼ ($ vol)
MemberChamberTypeFiledTradedSize
Ro KhannaHousepurchase2026-07-062026-06-16$1–15K
Ro KhannaHousesale2026-07-062026-06-30$1–15K
Ro KhannaHousepurchase2026-06-092026-05-27$1–15K
Ro KhannaHousesale2026-05-112026-04-13$1–15K
Ro KhannaHousesale2026-05-112026-04-24$1–15K
Gilbert CisnerosHousesale2026-05-082026-04-14$1–15K
Ro KhannaHousepurchase2026-04-072026-03-23$1–15K
Gilbert CisnerosHousepurchase2026-04-072026-03-13$1–15K
Ro KhannaHousesale2026-04-072026-03-30$1–15K
Ro KhannaHousepurchase2026-04-072026-03-10$1–15K
Ro KhannaHousepurchase2026-03-092026-02-17$1–15K
Ro KhannaHousesale2026-03-092026-02-05$1–15K
Ro KhannaHousepurchase2026-03-092026-02-24$1–15K
Gilbert CisnerosHousepurchase2026-02-132026-01-28$1–15K

Research tool, not investment advice — historical frequencies, not recommendations. A product of Marovel Technologies LLC. Full terms.