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SPY
SPDR S&P 500 ETF Trust
stock NYSE ETF

At Close

Oct 20, 2025 4:00:13 PM EDT

671.04USD+1.015%(+6.74)59,704,199

671.39Bid 671.51Ask 0.12Spread

Pre-market

Oct 20, 2025 9:28:30 AM EDT

667.22USD+0.440%(+2.92)726,742

After-hours

Oct 20, 2025 4:36:57 PM EDT

671.75USD+0.106%(+0.71)4,680,822

OverviewOptionsHistoricalExchange VolumeShortsMore

SPY Volume Oct 20, 2025

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	32.60	15,853,269	31.62
NYSE Arca	21.23	10,323,849	25.15
Nasdaq GSM	20.32	9,880,703	14.92
Cboe BZX	7.83	3,805,065	9.99
Cboe EDGX	5.88	2,861,128	6.53
MEMX	3.68	1,789,326	2.85
CHX	2.10	1,018,697	2.32
NYSE	1.99	969,468	2.21
IEX	1.70	828,561	1.79
Nasdaq PHLX	0.74	362,170	0.59
Cboe EDGA	0.73	354,406	0.66
Cboe BYX	0.65	314,339	0.37
MIAX Pearl	0.29	138,615	0.78
Nasdaq BX	0.11	52,173	0.08
NYSE American	0.08	38,223	0.08
NYSE National	0.07	32,473	0.08
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

0.63 servings per container

Serving size

77.35M

Calories

48.62M

% Day

% Avg

Off Exchange¹ 16M

32.60%

31.62%

NYSE Arca 10M

21.23%

25.15%

Nasdaq GSM 10M

20.32%

14.92%

Cboe BZX 4M

7.83%

9.99%

Cboe EDGX 3M

5.88%

6.53%

MEMX 2M

3.68%

2.85%

CHX 1M

2.10%

2.32%

NYSE 969K

1.99%

2.21%

IEX 829K

1.70%

1.79%

Nasdaq PHLX 362K

0.74%

0.59%

Cboe EDGA 354K

0.73%

0.66%

Cboe BYX 314K

0.65%

0.37%

MIAX Pearl 139K

0.29%

0.78%

Nasdaq BX 52K

0.11%

0.08%

NYSE American 38K

0.08%

NYSE National 32K

0.07%

0.08%

LTSE 0

0.00%

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

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SPY Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 15,853,269, which is 32.60% of today's total volume.
Today's Lit volume is 32,769,196, which is 67.40%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 31.62%.
The average Lit volume has been 68.38%.

SPY Volume by Exchange

Off Exchange

NYSE Arca

Nasdaq GSM

Cboe BZX

Cboe EDGX

MEMX

CHX

NYSE

IEX

Nasdaq PHLX

Cboe EDGA