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CSGP

CoStar Group, Inc. · Real Estate · Real Estate Services
TECHSellZACKSBuy R500#439 today
$27.38 -1.23% today · -2.53% 1W
Oct 2 close or latest
PreviewWhy it's moving

Underperforming without a clear catalyst yet

Assembled from Wallsti's own signals.

After each kind of event

EventEvents1 day1 week1 month1 quarter
Any day 1,255 0.0%#468 H -0.3%#493 H -1.6%#501 H -2.1%#442 M
Big drop Sep 28 (-3.1% or worse) 66 0.0%#324 H -0.3%#402 H -2.2%#432 H -3.9%#368 M
Big gain (+2.5% or better) 67 +0.1%#239 H -0.7%#444 H -2.4%#496 H -4.6%#433 M
Earnings beat 19 +1.5%#94 M +1.4%#32 M -0.8%#428 M -1.1%#352 M
Earnings miss — — — — —
52-week high 5 +1.0%#193 L +0.6%#219 L -2.6%#285 L -8.4%#369 L
52-week low Sep 28 10 +0.2%#76 M -1.2%#191 M -0.9%#231 M -22.3%#206 L
Crossed above 200-day avg 12 +0.3%#122 M -0.6%#380 M +1.4%#253 M +6.4%#31 M
Crossed below 200-day avg 12 +0.3%#85 M +1.1%#138 M -0.5%#333 M +7.6%#77 M
RSI oversold 19 -0.3%#409 M +0.5%#298 M -5.4%#489 M -12.3%#461 M
RSI overbought 11 +0.6%#93 M 0.0%#265 M +1.7%#206 M 0.0%#311 L
Mention spike (Trendy) — — — — —
Analyst upgrade — — — — —
Analyst downgrade — — — — —
Insider buy — — — — —
Insider unplanned sale — — — — —

Median gain from the close of the session the event was known, over each holding period; #rank among the S&P 500 stocks after the same kind of event (#1 = best). "Big" is CSGP's own: its worst / best 10% of days over the prior 2 years. Highlighted: happening in the latest session.

Big drop (-3.1% or worse)

A daily fall among the stock's own worst 10% of the prior 2 years.

HoldingEventsMedian (likely range)ConfidenceRankUpvs SPYRange of outcomes (worst · 25–75% · median · best)vs S&P 500 stocks (their medians)
1 day 66 +0.05% (-0.3 to +0.4) High #324 of 500 50% -0.03%
1 week 65 -0.27% (-1.7 to +0.3) High #402 of 500 45% -0.48%
1 month 64 ≈41 indep. -2.19% (-5.6 to +0.3) High #432 of 500 41% -4.01%
1 quarter 62 ≈15 indep. -3.89% (-14.3 to -0.2) Medium #368 of 499 35% -9.91%

Range of outcomes: all of CSGP's big drops in the past 5 years, from the worst to the best result over each holding period; the box holds the middle half, the tick is the median. A wide box means the median alone says little. Hover the median for the average.

Big drop by trend

When it happenedEvents1 day1 week1 month1 quarter
Long trendAbove its 200-day avg 25 0.0%H vs 0.0% -0.8%H vs -0.3% -1.0%M vs -1.0% -3.5%M vs -1.1%
Below its 200-day avg now 41 +0.1%H vs 0.0% -0.2%H vs 0.0% -2.4%H vs -1.3% -3.9%M vs -1.1%
Medium trendAbove its 50-day avg 17 +0.4%M vs 0.0% +1.1%M vs -0.4% -1.0%M vs -1.9% -3.4%M vs -0.4%
Below its 50-day avg now 49 -0.2%H vs -0.1% -0.8%H vs 0.0% -5.2%H vs -1.1% -5.8%M vs -2.1%
Short trendAbove its 20-day avg 15 +0.1%M vs -0.1% +0.8%M vs -0.5% +2.3%M vs -1.5% -3.4%M vs +0.1%
Below its 20-day avg now 51 0.0%H vs 0.0% -0.5%H vs -0.1% -2.4%H vs -1.4% -5.8%M vs -4.0%

The same event split by where CSGP stood against its 200-, 50- and 20-day averages when it happened (a dip in an uptrend vs a falling knife); "vs" is the plain any-day median in that trend; "now" marks where it stands today. Splitting halves the evidence, so watch the confidence letters: H / M / L.

Latest big drops

EventEntry1 day1 week1 month1 quarter
Sep 28, 2026 Sep 28 @ $27.02 -3.8% on the day (line -3.1%) -0.3% … … …
Sep 16, 2026 Sep 16 @ $30.36 -3.8% on the day (line -3.0%) -3.5% -6.9% … …
Aug 17, 2026 Aug 17 @ $31.35 -3.2% on the day (line -2.8%) +0.1% +4.8% -3.2% …
Jul 14, 2026 Jul 14 @ $27.68 -3.8% on the day (line -2.8%) +2.9% +3.0% +10.2% …
Jun 30, 2026 Jun 30 @ $28.32 -3.4% on the day (line -2.6%) +3.7% +3.6% +4.0% -4.8%
Jun 22, 2026 Jun 22 @ $29.22 -3.0% on the day (line -2.5%) +3.6% +0.3% -5.2% -0.6%
Jun 11, 2026 Jun 11 @ $32.65 -4.6% on the day (line -2.5%) +0.6% -7.7% -15.2% -6.7%
May 26, 2026 May 26 @ $32.52 -4.2% on the day (line -2.5%) -0.6% +3.5% -11.9% +0.9%
May 8, 2026 May 8 @ $32.77 -6.3% on the day (line -2.5%) +0.5% -0.3% +3.5% -3.9%
Apr 29, 2026 Apr 29 @ $34.14 -5.1% on the day (line -2.5%) +1.4% -0.2% -5.7% -13.7%
Apr 21, 2026 Apr 21 @ $38.91 -2.9% on the day (line -2.4%) -0.4% -7.6% -12.6% -28.8%
Apr 7, 2026 Apr 7 @ $39.48 -4.1% on the day (line -2.4%) -1.7% -4.8% -13.7% -25.7%
Mar 27, 2026 Mar 27 @ $39.77 -3.7% on the day (line -2.4%) +2.8% +3.5% -9.6% -26.3%
Mar 18, 2026 Mar 18 @ $43.11 -2.6% on the day (line -2.4%) -0.7% -3.9% -7.9% -29.3%
Mar 10, 2026 Mar 10 @ $46.33 -4.3% on the day (line -2.3%) -2.1% -4.5% -19.4% -26.8%

Aftermath: entry is the close of the first session the event was fully known (the same session for price moves, the reaction session for earnings, the next session for Reddit, analyst and insider events, which are dated by day). Repeats within a few sessions count as one event. Past performance after an event says nothing certain about the next one. Not advice.