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ALKS
Alkermes Inc. plc
stock NASDAQ

At Close

Aug 20, 2026 3:59:58 PM EDT

48.03USD-4.285%(-2.15)1,564,106

41.46Bid 48.04Ask 6.58Spread

Pre-market

Aug 20, 2026 9:23:30 AM EDT

49.60USD-1.156%(-0.58)312

After-hours

Aug 20, 2026 4:00:30 PM EDT

48.02USD-0.021%(-0.01)449,120

OverviewOptionsHistoricalExchange VolumeShortsMore

ALKS Volume Aug 20, 2026

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Exchange	Day%	Volume	30D%
Nasdaq GSM	41.59	650,547	38.92
Off Exchange¹	37.59	587,985	38.98
IEX	8.23	128,702	6.42
NYSE Arca	5.12	80,054	5.20
Cboe BZX	2.81	43,887	3.60
NYSE	0.84	13,180	1.23
Cboe EDGX	0.77	12,018	1.85
Cboe BYX	0.63	9,786	0.91
Cboe EDGA	0.51	7,947	0.60
Nasdaq BX	0.35	5,506	0.58
MEMX	0.34	5,331	0.62
NYSE American	0.30	4,694	0.14
NYSE National	0.20	3,144	0.23
CHX	0.18	2,825	0.07
Nasdaq PHLX	0.17	2,679	0.14
MIAX Pearl	0.15	2,312	0.20
LTSE	0.12	1,828	0.14
24X National	0.10	1,608	0.16
Texas Stock Exchange LLC	0.00	0	0.01

chartexchange.com

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

ALKS Nutrition Facts

0.96 servings per container

Serving size

1.63M

Calories

1.56M

% Day

% Avg

Nasdaq GSM 651K

41.59%

38.92%

Off Exchange¹ 588K

37.59%

38.98%

IEX 129K

8.23%

6.42%

NYSE Arca 80K

5.12%

5.20%

Cboe BZX 44K

2.81%

3.60%

NYSE 13K

0.84%

1.23%

Cboe EDGX 12K

0.77%

1.85%

Cboe BYX 10K

0.63%

0.91%

Cboe EDGA 8K

0.51%

0.60%

Nasdaq BX 6K

0.35%

0.58%

MEMX 5K

0.34%

0.62%

NYSE American 5K

0.30%

0.14%

NYSE National 3K

0.20%

0.23%

CHX 3K

0.18%

0.07%

Nasdaq PHLX 3K

0.17%

0.14%

MIAX Pearl 2K

0.15%

0.20%

LTSE 2K

0.12%

0.14%

24X National 2K

0.10%

0.16%

Texas Stock Exchange LLC 0

0.00%

0.01%

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

chartexchange.com

ALKS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 587,985, which is 37.59% of today's total volume.
Today's Lit volume is 976,048, which is 62.41%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 38.98%.
The average Lit volume has been 61.02%.

ALKS Volume by Exchange

Nasdaq GSM

Off Exchange

IEX

NYSE Arca

Cboe BZX

NYSE

Cboe EDGX

Cboe BYX

Cboe EDGA

Nasdaq BX

MEMX