CoStar Group, Inc. (CSGP) SEC filings

CSGP SEC filings moved a median of +0.37% by the close. CSGP SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the CSGP overview →

60 measured CSGP SEC filing events.

Where these CSGP SEC filings landedvs 60 measured CSGP SEC filing reactions
CSGP SEC filingMiddle 50% · -0.83% to +2.30%Zero: 0.00%Median: +0.37%Median +0.37%-3.00%0+3.00%
Middle 50% of CSGP SEC filing reactions-0.83% to +2.30%
Median reaction (to close)+0.37%
Measured reactions60
Point-in-time · zero look-ahead

Half of the 60 CSGP SEC filing events with a measured close landed between -0.83% and +2.30%; 57% closed up.

DateHeadlineEvent5-minTo close
Form 8-K COSTAR GROUP, INC. For: Aug 21SEC filing · Form 8-K+0.49%+1.17%
Form 10-Q COSTAR GROUP, INC. For: Jun 30SEC filing · Form 10-Q+1.15%+4.39%
Form S-8 COSTAR GROUP, INC.SEC filing · Form S-8+1.15%+4.39%
Form 8-K COSTAR GROUP, INC. For: Jul 28SEC filing · Form 8-K+6.64%+14.91%
Form 8-K COSTAR GROUP, INC. For: Jul 07SEC filing · Form 8-K+0.78%+2.52%
Form 8-K COSTAR GROUP, INC. For: Jun 23SEC filing · Form 8-K-0.29%-2.32%
Form 8-K COSTAR GROUP, INC. For: May 28SEC filing · Form 8-K-1.23%-1.38%
Form SD COSTAR GROUP, INC.SEC filing · Form SD-1.04%+0.83%
Form DEFA14A COSTAR GROUP, INC.SEC filing · Form DEFA14A+0.12%+1.81%
Form ARS COSTAR GROUP, INC. For: Dec 31SEC filing · Form ARS+1.51%-0.83%
Form DEF 14A COSTAR GROUP, INC. For: Jun 23SEC filing · Form DEF+1.51%-0.83%
Form DEFA14A COSTAR GROUP, INC.SEC filing · Form DEFA14A+1.51%-0.83%
Form 10-Q COSTAR GROUP, INC. For: Mar 31SEC filing · Form 10-Q+1.90%+2.67%
Form 8-K COSTAR GROUP, INC. For: Apr 28SEC filing · Form 8-K+0.30%-4.82%
Form 8-K COSTAR GROUP, INC. For: Mar 15SEC filing · Form 8-K+0.02%-0.75%
Form 10-K COSTAR GROUP, INC. For: Dec 31SEC filing · Form 10-K-0.66%-1.19%
Form 8-K COSTAR GROUP, INC. For: Feb 24SEC filing · Form 8-K-5.05%-4.38%
Form 8-K COSTAR GROUP, INC. For: Feb 13SEC filing · Form 8-K+0.53%+1.71%
Form 8-K COSTAR GROUP, INC. For: Jan 07SEC filing · Form 8-K-3.83%-9.32%
Form 10-Q COSTAR GROUP, INC. For: Sep 30SEC filing · Form 10-Q-0.75%-1.44%
Form 8-K COSTAR GROUP, INC. For: Oct 28SEC filing · Form 8-K-3.74%-2.33%
Form 8-K COSTAR GROUP, INC. For: Aug 27SEC filing · Form 8-K+0.05%+0.37%
Form 10-Q COSTAR GROUP, INC. For: Jun 30SEC filing · Form 10-Q+1.21%+2.33%
Form S-8 COSTAR GROUP, INC.SEC filing · Form S-8+1.21%+2.33%
Form 8-K COSTAR GROUP, INC. For: Jul 22SEC filing · Form 8-K+1.89%+2.74%
Form 8-K COSTAR GROUP, INC. For: Jun 26SEC filing · Form 8-K+0.20%-0.35%
Form DEFA14A COSTAR GROUP, INC.SEC filing · Form DEFA14A+0.26%+0.21%
Form 8-K COSTAR GROUP, INC. For: May 09SEC filing · Form 8-K-0.17%-1.79%
Form 10-Q COSTAR GROUP, INC. For: Mar 31SEC filing · Form 10-Q-0.08%+2.30%
Form DEFA14A COSTAR GROUP, INC.SEC filing · Form DEFA14A-0.08%+2.30%
Form ARS COSTAR GROUP, INC. For: Dec 31SEC filing · Form ARS-0.08%+2.30%
Form DEF 14A COSTAR GROUP, INC. For: Jun 26SEC filing · Form DEF-0.08%+2.30%
Form 8-K COSTAR GROUP, INC. For: Apr 29SEC filing · Form 8-K-2.81%-8.81%
Form 8-K COSTAR GROUP, INC. For: Apr 06SEC filing · Form 8-K-4.11%-0.98%
Form 8-K COSTAR GROUP, INC. For: Feb 28SEC filing · Form 8-K+1.37%-0.45%
Form S-8 COSTAR GROUP, INC.SEC filing · Form S-8+1.37%-0.45%
Form 10-K COSTAR GROUP, INC. For: Dec 31SEC filing · Form 10-K-1.07%-1.11%
Form 8-K COSTAR GROUP, INC. For: Feb 18SEC filing · Form 8-K+2.95%+8.67%
Form 10-Q COSTAR GROUP, INC. For: Sep 30SEC filing · Form 10-Q+0.30%+1.86%
Form 8-K COSTAR GROUP, INC. For: Oct 22SEC filing · Form 8-K-1.92%+0.79%
Form 10-Q COSTAR GROUP, INC. For: Jun 30SEC filing · Form 10-Q+0.58%+2.49%
Form 8-K COSTAR GROUP, INC. For: Jul 23SEC filing · Form 8-K-0.49%+1.96%
Form 8-K COSTAR GROUP, INC. For: Jul 08SEC filing · Form 8-K-0.16%+0.40%
Form 8-K COSTAR GROUP, INC. For: Jun 18SEC filing · Form 8-K-0.19%+0.12%
Form EFFECT COSTAR GROUP, INC.SEC filing · Form EFFECT-0.81%+0.81%
Form S-4/A COSTAR GROUP, INC.SEC filing · Form S-4+0.04%+0.37%
Form 8-K COSTAR GROUP, INC. For: Jun 06SEC filing · Form 8-K+0.04%+0.37%
Form 8-K COSTAR GROUP, INC. For: May 24SEC filing · Form 8-K-0.62%-0.56%
Form S-4 COSTAR GROUP, INC.SEC filing · Form S-4-0.14%-0.71%
Form ARS COSTAR GROUP, INC. For: Dec 31SEC filing · Form ARS-0.07%+0.01%
Form DEF 14A COSTAR GROUP, INC. For: Jun 06SEC filing · Form DEF-0.18%-0.02%
Form DEFA14A COSTAR GROUP, INC.SEC filing · Form DEFA14A-0.25%-0.11%
Form 10-Q COSTAR GROUP, INC. For: Mar 31SEC filing · Form 10-Q-1.14%-1.59%
Form 8-K COSTAR GROUP, INC. For: Apr 23SEC filing · Form 8-K-2.43%-0.63%
Form 8-K COSTAR GROUP, INC. For: Apr 21SEC filing · Form 8-K+0.36%+2.31%
Form 10-K COSTAR GROUP, INC. For: Dec 31SEC filing · Form 10-K+1.61%-2.25%
Form 8-K COSTAR GROUP, INC. For: Feb 21SEC filing · Form 8-K-0.16%+1.51%
Form 8-K COSTAR GROUP, INC. For: Feb 20SEC filing · Form 8-K-0.16%+1.51%
Form 10-Q COSTAR GROUP, INC. For: Sep 30SEC filing · Form 10-Q-0.02%+0.67%
Form 8-K COSTAR GROUP, INC. For: Oct 24SEC filing · Form 8-K+3.02%+4.28%
That’s how CSGP usually reacts to SEC filings— get an email when it moves on news →
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Other Real Estate names and their SEC filings

Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.