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CPST
Calamos S&P 500 Structured Alt Protection ETF - September
stock NYSE ETF

At Close

Jul 30, 2026 3:59:37 PM EDT

27.93USD0.000%(0.00)813

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-27.93)0

After-hours

0.00USD0.000%(0.00)0

OverviewHistoricalExchange VolumeShortsMore

CPST Volume Jul 31, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	64.33	523	68.27
MEMX	24.60	200	2.21
NYSE Arca	11.07	90	12.00
Cboe EDGX	0.00	0	4.12
Cboe BZX	0.00	0	2.96
IEX	0.00	0	2.39
Nasdaq BX	0.00	0	1.98
Cboe BYX	0.00	0	1.70
NYSE	0.00	0	1.48
Nasdaq GSM	0.00	0	1.37
NYSE National	0.00	0	1.04
NYSE American	0.00	0	0.25
MIAX Pearl	0.00	0	0.23

chartexchange.com

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

CPST Nutrition Facts

0.56 servings per container

Serving size

1.46K

Calories

813.00

% Day

% Avg

Off Exchange¹ 523

64.33%

68.27%

MEMX 200

24.60%

2.21%

NYSE Arca 90

11.07%

12.00%

Cboe EDGX 0

0.00%

4.12%

Cboe BZX 0

0.00%

2.96%

IEX 0

0.00%

2.39%

Nasdaq BX 0

0.00%

1.98%

Cboe BYX 0

0.00%

1.70%

NYSE 0

0.00%

1.48%

Nasdaq GSM 0

0.00%

1.37%

NYSE National 0

0.00%

1.04%

NYSE American 0

0.00%

0.25%

MIAX Pearl 0

0.00%

0.23%

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

chartexchange.com

CPST Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 523, which is 64.33% of today's total volume.
Today's Lit volume is 290, which is 35.67%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 68.27%.
The average Lit volume has been 31.73%.

CPST Volume by Exchange

Off Exchange

MEMX

NYSE Arca

Cboe EDGX

Nasdaq GSM

IEX

Nasdaq BX

NYSE National

Cboe BYX

NYSE

MIAX Pearl