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Dark Pool Activity

Weekly FINRA ATS (Alternative Trading System) data for 1,026 stocks — updated every Friday.

Week of: 2026-08-03
About Dark Pool Data

Dark pools are private exchanges where institutional investors trade large blocks of shares away from public markets. FINRA requires all Alternative Trading Systems (ATS) to report weekly volume data.

  • Notional Value: Total dollar value of shares traded in dark pools (shares × price)
  • Volume Surge: Week-over-week change in dark pool share volume — spikes may indicate institutional accumulation or distribution
  • Avg Trade Size: Shares per trade — larger average sizes suggest institutional block trading rather than retail flow

Data source: FINRA ATS Transparency Data (Tier 1 — NMS stocks), published weekly with a 2-week delay.

Stocks Tracked
1,026
with dark pool data
Total Shares
5.9B
this week
Total Notional
$725.8B
dollar volume
Total Trades
95,725,436
this week
Top 10 by Weekly Notional $
Biggest dollar flow through dark pools this week
# Symbol Company Price Mkt Cap Notional $ Shares Trades
1 MU Micron Technology, Inc. $975.26 $1.1T $24.7B 28,395,580 883,395
2 MSFT Microsoft Corporation $495.63 $3.7T $22.6B 45,810,919 862,248
3 NVDA NVIDIA Corporation $218.29 $5.3T $19.1B 88,648,052 1,082,094
4 SPCX Space Exploration Technologies Corp. $151.21 $2.0T $16.7B 142,054,014 1,431,409
5 SNDK Sandisk Corporation $1633.35 $241.9B $16.6B 12,732,297 628,589
6 AMZN Amazon.com, Inc. $256.78 $2.8T $14.8B 53,145,614 733,460
7 GOOGL Alphabet Inc. $338.50 $4.1T $13.6B 36,983,648 756,171
8 AMD Advanced Micro Devices, Inc. $516.13 $841.6B $13.4B 27,336,459 593,719
9 AAPL Apple Inc. $332.27 $4.9T $13.4B 43,621,782 746,342
10 META Meta Platforms, Inc. $648.03 $1.7T $10.0B 16,922,518 399,805
Top 10 by Week-over-Week Volume Surge
Biggest increase in dark pool share volume vs prior week — potential institutional accumulation
# Symbol Company Price Mkt Cap WoW Change Shares Prior Wk Notional $
1 GME GameStop Corp. $21.15 $9.5B +401% 10,232,648 2,043,454 $195M
2 HONA Honeywell Aerospace Inc $158.26 $50.2B +362% 11,249,983 2,435,525 $1.9B
3 FSOL Fidelity Solana Fund $12.13 $193M +340% 123,955 28,193 $1M
4 UWMC UWM Holdings Corporation $1.35 $2.0B +287% 44,804,050 11,574,230 $57M
5 FERG Ferguson plc $222.54 $43.2B +282% 10,630,214 2,780,447 $2.7B
6 APTV Aptiv PLC $45.54 $9.6B +282% 14,016,897 3,671,593 $681M
7 PRMB Primo Brands Corporation $20.75 $7.5B +259% 13,476,300 3,751,754 $326M
8 DVA DaVita Inc. $181.55 $11.7B +256% 2,889,788 811,995 $587M
9 CELH Celsius Holdings, Inc. $27.22 $7.0B +244% 24,009,604 6,976,169 $641M
10 RBA RB Global, Inc. $83.60 $15.6B +228% 4,966,957 1,515,506 $490M
Top 10 by Average Trade Size
Largest average shares per trade — indicates institutional block activity
# Symbol Company Price Mkt Cap Avg Trade Size Shares Trades Notional $
1 UWMC UWM Holdings Corporation $1.35 $2.0B 544 44,804,050 82,368 $57M
2 PHYS Sprott Physical Gold Trust $32.86 $15.7B 396 7,074,074 17,859 $228M
3 PSLV Sprott Physical Silver Trust $20.95 $13.3B 339 7,616,021 22,493 $152M
4 NU Nu Holdings Ltd. $14.62 $70.8B 273 37,244,976 136,248 $533M
5 WBD Warner Bros. Discovery, Inc. $28.04 $70.3B 224 25,043,933 112,011 $654M
6 AUR Aurora Innovation, Inc. $6.43 $12.6B 215 21,398,116 99,460 $146M
7 OWL Blue Owl Capital Inc. $10.56 $16.5B 210 31,739,361 150,783 $362M
8 AGNC AGNC Investment Corp. $10.15 $11.7B 209 14,727,235 70,406 $158M
9 T AT&T Inc. $26.05 $178.5B 201 57,746,196 286,619 $1.3B
10 PATH UiPath Inc. $13.75 $7.3B 189 30,899,062 163,122 $431M

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For informational purposes only. Not investment advice. Data sourced from SEC filings. Privacy Terms