SWStonkWhisper

GRBK Dark Pool Activity

ATS off-exchange volume intelligence · Week of 2026-07-06

DP Shares
298.5K
Notional Value
$22.2M
WoW Change
+4.8%

GRBK dark pool volume for the week of 2026-07-06: 298.5K shares traded across 24 ATS venues with a total notional value of $22.2M. Volume is up 4.8% week-over-week. Primary routing venues include , UBS ATS, INTELLIGENT CROSS LLC.

Dark pool activity in GRBK reflects institutional order flow executing on Alternative Trading Systems (ATS) registered with the SEC — private venues where large-block trades are matched away from public exchanges to minimize price impact. StonkWhisper ingests FINRA-published ATS volume data to track these off-exchange flows. Sustained elevation in dark pool percentage — particularly when concentrated at specific venues — can indicate institutional accumulation or distribution ahead of significant price moves. The interactive charts below show 12-week historical volume and complete venue breakdown for GRBK.

DP Shares
298.5K
Notional
$22.2M
DP % of Vol
WoW Change
+4.8%
Venues
24
Weekly Dark Pool Volume — 12 Weeks

Weekly History

WeekSharesDP %WoW
2026-07-06298.5K+4.8%
2026-06-29284.9K-23.3%
2026-06-22371.4K+60.7%
2026-06-15231.2K-27.8%
2026-06-08320.2K-5.2%
2026-06-01337.8K+111.6%
2026-05-25159.7K-59.8%
2026-05-18397.1K+21.5%
2026-05-11326.8K+59.5%
2026-05-04204.9K-7.5%
2026-04-27221.5K
2026-03-23184.0K-15.5%

ATS Venue Breakdown (latest week)

298.5K
15.4K trades
UBSA
UBS ATS
52.0K
1.5K trades
INCR
INTELLIGENT CROSS LLC
38.5K
2.4K trades
SGMT
SIGMA X2
30.9K
1.5K trades
MLIX
INSTINCT X
28.7K
835 trades
EBXL
LEVEL ATS
27.7K
3.7K trades
MSPL
MS POOL (ATS-4)
23.9K
199 trades
MSTX
MS TRAJECTORY CROSS (ATS-1)
21.8K
3.0K trades
CGXS
ONECHRONOS
18.5K
608 trades
JPBX
JPB-X
12.3K
427 trades
JPMX
JPM-X
6.8K
214 trades
KCGM
VIRTU MATCHIT ATS
6.0K
193 trades
LATS
THE BARCLAYS ATS
5.4K
171 trades
ICBX
CBX
4.8K
116 trades
ONEC
CITI-ONE ATS
4.8K
75 trades
BNPX
BNPP CORTEX ATS
4.7K
127 trades
ITGP
POSIT
4.2K
77 trades
XSTM
CROSSSTREAM
1.9K
68 trades
MSRP
MS RPOOL (ATS-6)
1.8K
57 trades
IATS
IBKR ATS
1.1K
42 trades
BIDS
BIDS ATS
900
9 trades
PURE
PURESTREAM
765
77 trades
LQNA
LIQUIDNET H2O ATS
707
46 trades
ALPX
ALPHAX US
210
3 trades
BLUE
BOATS
13
1 trades