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SPY
SPDR S&P 500 ETF Trust
stock NYSE ETF

At Close

May 18, 2026 3:59:59 PM EDT

738.40USD-0.104%(-0.77)46,560,691

717.62Bid 762.06Ask 44.44Spread

Pre-market

May 18, 2026 9:29:30 AM EDT

740.00USD+0.112%(+0.83)426,148

After-hours

May 18, 2026 4:59:30 PM EDT

738.03USD-0.050%(-0.37)5,235,628

OverviewOptionsHistoricalExchange VolumeShortsMore

SPY Volume May 18, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	40.51	19,194,835	42.73
NYSE Arca	22.14	10,490,182	19.47
Nasdaq GSM	15.96	7,560,280	14.43
Cboe BZX	6.29	2,979,580	5.87
Cboe EDGX	4.16	1,973,352	4.34
IEX	2.86	1,354,165	2.59
NYSE	2.49	1,178,809	2.66
CHX	1.74	823,996	3.23
MEMX	1.58	746,392	2.01
Cboe EDGA	0.65	306,244	0.68
Cboe BYX	0.46	216,257	0.48
Nasdaq PHLX	0.44	208,220	0.50
MIAX Pearl	0.38	180,167	0.60
Nasdaq BX	0.19	89,449	0.21
NYSE American	0.10	45,974	0.12
NYSE National	0.05	23,476	0.05
24X National	0.03	12,576	0.02
LTSE	0.00	0	0.00

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

SPY Nutrition Facts

0.91 servings per container

Serving size

52.13M

Calories

47.38M

% Day

% Avg

Off Exchange¹ 19M

40.51%

42.73%

NYSE Arca 10M

22.14%

19.47%

Nasdaq GSM 8M

15.96%

14.43%

Cboe BZX 3M

6.29%

5.87%

Cboe EDGX 2M

4.16%

4.34%

IEX 1M

2.86%

2.59%

NYSE 1M

2.49%

2.66%

CHX 824K

1.74%

3.23%

MEMX 746K

1.58%

2.01%

Cboe EDGA 306K

0.65%

0.68%

Cboe BYX 216K

0.46%

0.48%

Nasdaq PHLX 208K

0.44%

0.50%

MIAX Pearl 180K

0.38%

0.60%

Nasdaq BX 89K

0.19%

0.21%

NYSE American 46K

0.10%

0.12%

NYSE National 23K

0.05%

24X National 13K

0.03%

0.02%

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

SPY Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 19,194,835, which is 40.51% of today's total volume.
Today's Lit volume is 28,189,119, which is 59.49%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 42.73%.
The average Lit volume has been 57.27%.

SPY Volume by Exchange

Off Exchange

NYSE Arca

Nasdaq GSM

Cboe BZX

Cboe EDGX

IEX

NYSE

CHX

MEMX

Cboe EDGA

Cboe BYX