Dark

KMX
CarMax Inc.
stock NYSE

Market Open

Apr 17, 2026 2:59:20 PM EDT

40.76USD+0.667%(+0.27)2,522,593

40.75Bid 40.77Ask 0.02Spread

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 2:35:02 PM EDT

[ < ]

Exchange	Day%	Volume	30D%
Off Exchange¹	45.16	1,089,892	40.62
Nasdaq GSM	19.46	469,549	12.48
NYSE	10.53	254,002	27.88
IEX	7.81	188,453	5.16
Cboe BZX	5.04	121,692	3.99
NYSE Arca	4.30	103,872	3.65
Cboe EDGX	3.77	91,023	2.65
MEMX	2.34	56,447	1.38
Nasdaq BX	0.41	9,936	0.39
Cboe EDGA	0.40	9,700	0.52
MIAX Pearl	0.32	7,823	0.28
Cboe BYX	0.23	5,668	0.46
Nasdaq PHLX	0.10	2,358	0.16
NYSE National	0.06	1,481	0.23
NYSE American	0.02	560	0.10
CHX	0.02	516	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

0.65 servings per container

Serving size

3.69M

Calories

2.41M

% Day

% Avg

Off Exchange¹ 1M

45.16%

40.62%

Nasdaq GSM 470K

19.46%

12.48%

NYSE 254K

10.53%

27.88%

IEX 188K

7.81%

5.16%

Cboe BZX 122K

5.04%

3.99%

NYSE Arca 104K

4.30%

3.65%

Cboe EDGX 91K

3.77%

2.65%

MEMX 56K

2.34%

1.38%

Nasdaq BX 10K

0.41%

0.39%

Cboe EDGA 10K

0.40%

0.52%

MIAX Pearl 8K

0.32%

0.28%

Cboe BYX 6K

0.23%

0.46%

Nasdaq PHLX 2K

0.10%

0.16%

NYSE National 1K

0.06%

0.23%

NYSE American 560

0.02%

0.10%

CHX 516

0.02%

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 1,089,892, which is 45.16% of today's total volume.
Today's Lit volume is 1,323,294, which is 54.84%.
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

NYSE Arca

Cboe EDGX

MEMX

Nasdaq BX

Cboe EDGA

MIAX Pearl