Dark

ALEC
Alector, Inc. Common Stock
stock NASDAQ

At Close

Sep 30, 2026 3:59:56 PM EDT

1.84USD-1.604%(-0.03)792,696

1.60Bid 1.85Ask 0.25Spread

Pre-market

Sep 29, 2026 9:24:30 AM EDT

1.96USD+4.813%(+0.09)0

After-hours

Sep 30, 2026 4:25:30 PM EDT

1.85USD+0.543%(+0.01)6,380

OverviewOptionsHistoricalExchange VolumeShortsMore

ALEC Volume Sep 30, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	32.64	256,571	43.14
Nasdaq GSM	32.00	251,518	26.17
NYSE Arca	7.91	62,205	9.48
IEX	7.45	58,596	6.23
Cboe BZX	6.59	51,833	5.36
Cboe EDGX	3.47	27,315	3.24
Cboe BYX	2.62	20,568	0.74
NYSE	2.62	20,558	2.12
NYSE National	2.03	15,975	0.68
MEMX	1.11	8,698	0.92
Cboe EDGA	0.90	7,052	0.53
MIAX Pearl	0.39	3,091	0.51
Nasdaq BX	0.16	1,256	0.27
Texas Stock Exchange LLC	0.08	620	0.26
Nasdaq PHLX	0.03	205	0.16
NYSE American	0.00	10	0.08
CHX	0.00	1	0.09
24X National	0.00	0	0.01
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.

ALEC Nutrition Facts

0.54 servings per container

Serving size

1.46M

Calories

786.07K

% Day

% Avg

Off Exchange¹ 257K

32.64%

43.14%

Nasdaq GSM 252K

32.00%

26.17%

NYSE Arca 62K

7.91%

9.48%

IEX 59K

7.45%

6.23%

Cboe BZX 52K

6.59%

5.36%

Cboe EDGX 27K

3.47%

3.24%

Cboe BYX 21K

2.62%

0.74%

NYSE 21K

2.62%

2.12%

NYSE National 16K

2.03%

0.68%

MEMX 9K

1.11%

0.92%

Cboe EDGA 7K

0.90%

0.53%

MIAX Pearl 3K

0.39%

0.51%

Nasdaq BX 1K

0.16%

0.27%

Texas Stock Exchange LLC 620

0.08%

0.26%

Nasdaq PHLX 205

0.03%

0.16%

NYSE American 10

0.00%

0.08%

CHX 1

0.00%

0.09%

24X National 0

0.00%

0.01%

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

ALEC Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 256,571, which is 32.64% of today's total volume.
Today's Lit volume is 529,501, which is 67.36%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 43.14%.
The average Lit volume has been 56.86%.

ALEC Volume by Exchange

Off Exchange

Nasdaq GSM

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

Cboe BYX

NYSE

NYSE National

MEMX

Cboe EDGA