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CSGP
CoStar Group Inc
stock NASDAQ

At Close

Sep 29, 2026 3:59:59 PM EDT

26.95USD-0.259%(-0.07)5,193,571

0.00Bid 0.00Ask 0.00Spread

Pre-market

Sep 29, 2026 9:29:30 AM EDT

26.73USD-1.073%(-0.29)1,517

After-hours

Sep 29, 2026 4:08:30 PM EDT

26.95USD0.000%(0.00)495

OverviewOptionsHistoricalDark Pool LevelsShortsMore

CSGP Volume Sep 29, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	42.03	2,182,091	38.29
Nasdaq GSM	35.77	1,857,028	42.22
IEX	6.31	327,476	5.06
NYSE Arca	5.60	290,773	5.13
Cboe BZX	3.83	199,008	3.40
NYSE	1.80	93,475	1.52
Cboe EDGX	1.62	84,034	1.61
MEMX	0.94	48,984	0.75
Cboe BYX	0.62	32,332	0.53
Cboe EDGA	0.34	17,864	0.45
MIAX Pearl	0.33	17,171	0.20
NYSE National	0.31	16,211	0.31
Texas Stock Exchange LLC	0.15	7,972	0.19
Nasdaq BX	0.13	6,826	0.10
Nasdaq PHLX	0.08	3,983	0.09
NYSE American	0.07	3,686	0.09
CHX	0.05	2,613	0.09
LTSE	0.00	100	0.00
24X National	0.00	1	0.01

chartexchange.com

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

CSGP Nutrition Facts

0.77 servings per container

Serving size

6.78M

Calories

5.19M

% Day

% Avg

Off Exchange¹ 2M

42.03%

38.29%

Nasdaq GSM 2M

35.77%

42.22%

IEX 327K

6.31%

5.06%

NYSE Arca 291K

5.60%

5.13%

Cboe BZX 199K

3.83%

3.40%

NYSE 93K

1.80%

1.52%

Cboe EDGX 84K

1.62%

1.61%

MEMX 49K

0.94%

0.75%

Cboe BYX 32K

0.62%

0.53%

Cboe EDGA 18K

0.34%

0.45%

MIAX Pearl 17K

0.33%

0.20%

NYSE National 16K

0.31%

Texas Stock Exchange LLC 8K

0.15%

0.19%

Nasdaq BX 7K

0.13%

0.10%

Nasdaq PHLX 4K

0.08%

0.09%

NYSE American 4K

0.07%

0.09%

CHX 3K

0.05%

0.09%

LTSE 100

0.00%

24X National 1

0.00%

0.01%

¹ A) Dark Pool or Off Exchange? B) Venues explained. C) All trades that update volume from the CTA.

chartexchange.com

CSGP Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 2,182,091, which is 42.03% of today's total volume.
Today's Lit volume is 3,009,537, which is 57.97%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.29%.
The average Lit volume has been 61.71%.

CSGP Volume by Exchange

Off Exchange

Nasdaq GSM

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

MEMX

Cboe BYX

Cboe EDGA

MIAX Pearl