Dark

SPY
SPDR S&P 500 ETF Trust
stock NYSE ETF

At Close

Mar 20, 2026 4:00:05 PM EDT

648.33USD-1.738%(-11.47)165,586,396

0.00Bid 0.00Ask 0.00Spread

Pre-market

Mar 20, 2026 9:28:30 AM EDT

656.96USD-0.430%(-2.84)652,957

After-hours

Mar 20, 2026 4:58:30 PM EDT

650.77USD+0.376%(+2.44)8,080,791

OverviewOptionsHistoricalExchange VolumeShortsMore

SPY Volume Mar 20, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	42.50	69,745,237	34.33
NYSE Arca	19.06	31,278,495	21.03
Nasdaq GSM	16.06	26,347,154	21.79
CHX	6.54	10,738,876	1.73
Cboe BZX	4.18	6,863,752	5.36
Cboe EDGX	3.09	5,072,553	5.09
NYSE	2.64	4,338,341	3.33
MEMX	1.32	2,161,083	2.13
IEX	1.30	2,137,164	1.83
Cboe EDGA	0.76	1,240,960	0.85
MIAX Pearl	0.72	1,175,535	0.68
Nasdaq PHLX	0.67	1,094,964	0.87
Cboe BYX	0.66	1,085,950	0.63
Nasdaq BX	0.33	537,039	0.14
NYSE American	0.14	234,298	0.13
NYSE National	0.02	36,959	0.03
24X National	0.00	280	0.05
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.

SPY Nutrition Facts

1.88 servings per container

Serving size

87.45M

Calories

164.09M

% Day

% Avg

Off Exchange¹ 70M

42.50%

34.33%

NYSE Arca 31M

19.06%

21.03%

Nasdaq GSM 26M

16.06%

21.79%

CHX 11M

6.54%

1.73%

Cboe BZX 7M

4.18%

5.36%

Cboe EDGX 5M

3.09%

5.09%

NYSE 4M

2.64%

3.33%

MEMX 2M

1.32%

2.13%

IEX 2M

1.30%

1.83%

Cboe EDGA 1M

0.76%

0.85%

MIAX Pearl 1M

0.72%

0.68%

Nasdaq PHLX 1M

0.67%

0.87%

Cboe BYX 1M

0.66%

0.63%

Nasdaq BX 537K

0.33%

0.14%

NYSE American 234K

0.14%

0.13%

NYSE National 37K

0.02%

0.03%

24X National 280

0.00%

0.05%

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 69,745,237, which is 42.50% of today's total volume.
Today's Lit volume is 94,343,403, which is 57.50%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 34.33%.
The average Lit volume has been 65.67%.

SPY Volume by Exchange

Off Exchange

NYSE Arca

Nasdaq GSM

CHX

Cboe BZX

Cboe EDGX

NYSE

MEMX

IEX

Cboe EDGA

MIAX Pearl