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KMX
CarMax Inc.
stock NYSE

Market Open

Apr 17, 2026 1:18:32 PM EDT

41.51USD+2.519%(+1.02)2,019,215

41.48Bid 41.53Ask 0.05Spread

Pre-market

Apr 17, 2026 9:13:30 AM EDT

40.95USD+1.136%(+0.46)2,339

After-hours

Apr 16, 2026 4:47:30 PM EDT

40.13USD-0.857%(-0.35)0

OverviewOptionsHistoricalExchange VolumeShortsMore

KMX Volume Apr 17, 2026 12:55:02 PM EDT

[ < ]

Exchange	Day%	Volume	30D%
Off Exchange¹	46.05	858,291	40.62
Nasdaq GSM	18.87	351,723	12.43
NYSE	10.32	192,432	27.97
IEX	7.23	134,819	5.14
Cboe BZX	5.40	100,638	3.99
Cboe EDGX	4.23	78,784	2.65
NYSE Arca	4.14	77,090	3.64
MEMX	2.13	39,764	1.38
Cboe EDGA	0.43	8,029	0.52
MIAX Pearl	0.36	6,739	0.28
Nasdaq BX	0.35	6,546	0.39
Cboe BYX	0.27	5,022	0.46
Nasdaq PHLX	0.11	2,079	0.16
NYSE National	0.07	1,231	0.23
NYSE American	0.01	250	0.10
CHX	0.01	223	0.05
24X National	0.01	214	0.01
LTSE	0.00	0	0.00

chartexchange.com

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

KMX Nutrition Facts

0.51 servings per container

Serving size

3.69M

Calories

1.86M

% Day

% Avg

Off Exchange¹ 858K

46.05%

40.62%

Nasdaq GSM 352K

18.87%

12.43%

NYSE 192K

10.32%

27.97%

IEX 135K

7.23%

5.14%

Cboe BZX 101K

5.40%

3.99%

Cboe EDGX 79K

4.23%

2.65%

NYSE Arca 77K

4.14%

3.64%

MEMX 40K

2.13%

1.38%

Cboe EDGA 8K

0.43%

0.52%

MIAX Pearl 7K

0.36%

0.28%

Nasdaq BX 7K

0.35%

0.39%

Cboe BYX 5K

0.27%

0.46%

Nasdaq PHLX 2K

0.11%

0.16%

NYSE National 1K

0.07%

0.23%

NYSE American 250

0.01%

0.10%

CHX 223

0.01%

0.05%

24X National 214

0.01%

LTSE 0

0.00%

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

chartexchange.com

KMX Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 858,291, which is 46.05% of today's total volume.
Today's Lit volume is 1,005,583, which is 53.95%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 40.62%.
The average Lit volume has been 59.38%.

KMX Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE

IEX

Cboe BZX

Cboe EDGX

NYSE Arca

MEMX

Cboe EDGA

MIAX Pearl

Nasdaq BX