Dark

YSS
York Space Systems Inc.
stock NYSE

At Close

Mar 20, 2026 3:59:51 PM EDT

21.13USD+19.379%(+3.43)8,689,257

21.15Bid 21.22Ask 0.07Spread

Pre-market

Mar 20, 2026 9:28:30 AM EDT

19.65USD+11.011%(+1.95)30,339

After-hours

Mar 20, 2026 4:54:30 PM EDT

21.55USD+1.988%(+0.42)417,294

OverviewOptionsHistoricalExchange VolumeShortsTrends

YSS Volume Mar 20, 2026

[NF]

Exchange	Day%	Volume	30D%
Off Exchange¹	49.45	4,276,209	49.69
NYSE	30.93	2,674,792	23.24
Nasdaq GSM	6.80	588,273	8.45
NYSE Arca	3.41	294,581	4.59
Cboe EDGX	2.33	201,755	2.72
IEX	1.95	168,476	4.07
Cboe BZX	1.68	145,453	3.14
MEMX	1.59	137,547	1.57
Cboe BYX	0.40	34,839	0.67
Cboe EDGA	0.39	33,908	0.49
NYSE National	0.36	31,415	0.42
Nasdaq BX	0.31	27,197	0.41
MIAX Pearl	0.19	16,028	0.24
Nasdaq PHLX	0.10	8,882	0.11
NYSE American	0.04	3,791	0.10
CHX	0.04	3,481	0.09
24X National	0.02	1,300	0.00
LTSE	0.00	50	0.00

chartexchange.com

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

YSS Nutrition Facts

9.77 servings per container

Serving size

885.38K

Calories

8.65M

% Day

% Avg

Off Exchange¹ 4M

49.45%

49.69%

NYSE 3M

30.93%

23.24%

Nasdaq GSM 588K

6.80%

8.45%

NYSE Arca 295K

3.41%

4.59%

Cboe EDGX 202K

2.33%

2.72%

IEX 168K

1.95%

4.07%

Cboe BZX 145K

1.68%

3.14%

MEMX 138K

1.59%

1.57%

Cboe BYX 35K

0.40%

0.67%

Cboe EDGA 34K

0.39%

0.49%

NYSE National 31K

0.36%

0.42%

Nasdaq BX 27K

0.31%

0.41%

MIAX Pearl 16K

0.19%

0.24%

Nasdaq PHLX 9K

0.10%

0.11%

NYSE American 4K

0.04%

0.10%

CHX 3K

0.04%

0.09%

24X National 1K

0.02%

0.00%

LTSE 50

0.00%

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

chartexchange.com

YSS Off Exchange & Dark Pool Summary

Today's Off Exchange & Dark Pool volume is 4,276,209, which is 49.45% of today's total volume.
Today's Lit volume is 4,371,768, which is 50.55%.
Over the past 30 days, the average Off Exchange & Dark Pool volume has been 49.69%.
The average Lit volume has been 50.31%.

YSS Volume by Exchange

Off Exchange

NYSE

Nasdaq GSM

NYSE Arca

Cboe EDGX

IEX

Cboe BZX

MEMX

Cboe BYX

Cboe EDGA

NYSE National