Dark

OSBC
Old Second Bancorp Inc
stock NASDAQ

At Close

Oct 1, 2026 3:59:58 PM EDT

24.64USD+0.592%(+0.15)711,117

15.23Bid 2147.48Ask 2132.25Spread

Pre-market

Sep 29, 2026 9:13:30 AM EDT

24.85USD+1.470%(+0.36)0

After-hours

Sep 29, 2026 4:16:30 PM EDT

24.63USD-0.123%(-0.03)0

OverviewOptionsHistoricalDark Pool LevelsShortsMore

OSBC Volume Oct 1, 2026

[NF]

Exchange	Day%	Volume	30D%
Nasdaq GSM	42.22	300,091	42.86
Off Exchange¹	22.26	158,237	25.83
NYSE Arca	8.36	59,434	7.11
IEX	7.50	53,280	6.33
Cboe BZX	6.31	44,847	5.01
Cboe EDGX	6.19	43,979	3.99
NYSE	3.86	27,420	2.82
MEMX	0.83	5,890	1.01
Cboe BYX	0.69	4,899	1.22
Cboe EDGA	0.43	3,035	1.27
Nasdaq BX	0.28	2,016	0.84
Texas Stock Exchange LLC	0.26	1,845	0.29
NYSE National	0.20	1,457	0.63
CHX	0.19	1,347	0.18
MIAX Pearl	0.18	1,275	0.22
Nasdaq PHLX	0.13	916	0.20
NYSE American	0.08	541	0.16
24X National	0.04	300	0.02

chartexchange.com

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

OSBC Nutrition Facts

1.59 servings per container

Serving size

447.43K

Calories

710.81K

% Day

% Avg

Nasdaq GSM 300K

42.22%

42.86%

Off Exchange¹ 158K

22.26%

25.83%

NYSE Arca 59K

8.36%

7.11%

IEX 53K

7.50%

6.33%

Cboe BZX 45K

6.31%

5.01%

Cboe EDGX 44K

6.19%

3.99%

NYSE 27K

3.86%

2.82%

MEMX 6K

0.83%

1.01%

Cboe BYX 5K

0.69%

1.22%

Cboe EDGA 3K

0.43%

1.27%

Nasdaq BX 2K

0.28%

0.84%

Texas Stock Exchange LLC 2K

0.26%

0.29%

NYSE National 1K

0.20%

0.63%

CHX 1K

0.19%

0.18%

MIAX Pearl 1K

0.18%

0.22%

Nasdaq PHLX 916

0.13%

0.20%

NYSE American 541

0.08%

0.16%

24X National 300

0.04%

0.02%

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

chartexchange.com

OSBC Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 158,237, which is 22.26% of today's total volume.
Today's Lit volume is 552,572, which is 77.74%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 25.83%.
The average Lit volume has been 74.17%.

OSBC Volume by Exchange

Nasdaq GSM

Off Exchange

NYSE Arca

IEX

Cboe BZX

Cboe EDGX

NYSE

MEMX

Cboe BYX

Cboe EDGA

Nasdaq BX