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IONS
Ionis Pharmaceuticals, Inc. Common Stock
stock NASDAQ

Market Open

Jul 27, 2026 3:56:12 PM EDT

56.10USD-0.796%(-0.45)1,774,061

53.77Bid 56.12Ask 2.35Spread

Pre-market

Jul 27, 2026 9:29:21 AM EDT

56.68USD+0.230%(+0.13)1,435

After-hours

Jul 24, 2026 4:02:30 PM EDT

56.55USD+0.018%(+0.01)0

OverviewOptionsHistoricalExchange VolumeShortsMore

IONS Volume Jul 27, 2026 3:35:02 PM EDT

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	54.74	821,923	48.99
Nasdaq GSM	15.16	227,607	29.91
NYSE Arca	8.67	130,155	5.80
IEX	8.39	125,979	5.63
Cboe BZX	2.86	42,915	3.34
Cboe EDGX	2.70	40,508	2.08
Cboe BYX	2.02	30,278	0.54
NYSE	1.53	23,017	1.00
MEMX	1.49	22,348	0.92
NYSE National	0.60	9,060	0.28
MIAX Pearl	0.51	7,674	0.23
Nasdaq BX	0.50	7,526	0.28
Cboe EDGA	0.41	6,218	0.53
NYSE American	0.22	3,343	0.12
Nasdaq PHLX	0.14	2,141	0.11
CHX	0.05	780	0.22
24X National	0.01	100	0.01
LTSE	0.00	0	0.00
Texas Stock Exchange LLC	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.

IONS Nutrition Facts

0.40 servings per container

Serving size

3.76M

Calories

1.50M

% Day

% Avg

Off Exchange¹ 822K

54.74%

48.99%

Nasdaq GSM 228K

15.16%

29.91%

NYSE Arca 130K

8.67%

5.80%

IEX 126K

8.39%

5.63%

Cboe BZX 43K

2.86%

3.34%

Cboe EDGX 41K

2.70%

2.08%

Cboe BYX 30K

2.02%

0.54%

NYSE 23K

1.53%

1.00%

MEMX 22K

1.49%

0.92%

NYSE National 9K

0.60%

0.28%

MIAX Pearl 8K

0.51%

0.23%

Nasdaq BX 8K

0.50%

0.28%

Cboe EDGA 6K

0.41%

0.53%

NYSE American 3K

0.22%

0.12%

Nasdaq PHLX 2K

0.14%

0.11%

CHX 780

0.05%

0.22%

24X National 100

0.01%

LTSE 0

0.00%

Texas Stock Exchange LLC 0

0.00%

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

chartexchange.com

IONS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 821,923, which is 54.74% of today's total volume.
Today's Lit volume is 679,649, which is 45.26%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 48.99%.
The average Lit volume has been 51.01%.

IONS Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

Cboe BYX

NYSE

MEMX

NYSE National

MIAX Pearl