Dark Pool Activity
Weekly FINRA ATS (Alternative Trading System) data for 1,008 stocks — updated every Friday.
Week of: 2026-02-23
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
1,008
with dark pool data
Total Shares
5.7B
this week
Total Notional
$591.3B
dollar volume
Total Trades
85,680,361
this week
Top 10 by Weekly Notional $
Biggest dollar flow through dark pools this week
| # | Symbol | Company | Price | Mkt Cap | Notional $ | Shares | Trades |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | NVIDIA Corporation | $172.70 | $4.2T | $20.2B | 107,141,443 | 1,363,004 |
| 2 | MSFT | Microsoft Corporation | $381.87 | $2.8T | $12.0B | 30,502,462 | 697,564 |
| 3 | TSLA | Tesla, Inc. | $367.96 | $1.4T | $9.8B | 24,257,786 | 669,691 |
| 4 | SNDK | Sandisk Corporation | $709.71 | $104.8B | $8.8B | 13,675,756 | 331,651 |
| 5 | MU | Micron Technology, Inc. | $422.90 | $476.0B | $8.8B | 20,898,406 | 461,907 |
| 6 | AAPL | Apple Inc. | $247.99 | $3.6T | $7.9B | 29,380,172 | 472,690 |
| 7 | AMZN | Amazon.com, Inc. | $205.37 | $2.2T | $7.4B | 35,587,191 | 528,466 |
| 8 | GOOGL | Alphabet Inc. | $301.00 | $3.6T | $7.1B | 22,883,617 | 489,758 |
| 9 | AVGO | Broadcom Inc. | $310.51 | $1.5T | $7.1B | 21,855,518 | 467,045 |
| 10 | AMD | Advanced Micro Devices, Inc. | $201.33 | $328.3B | $6.3B | 30,588,112 | 460,091 |
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 | BHF | Brighthouse Financial, Inc. | $59.35 | $3.4B | +453% | 2,415,651 | 436,812 | $148M |
| 2 | THO | Thor Industries, Inc. | $75.20 | $4.0B | +406% | 1,801,408 | 356,368 | $181M |
| 3 | FOUR | Shift4 Payments, Inc. | $41.19 | $3.7B | +325% | 6,908,568 | 1,626,427 | $355M |
| 4 | NU | Nu Holdings Ltd. | $13.94 | $67.4B | +323% | 92,035,918 | 21,740,912 | $1.4B |
| 5 | AWI | Armstrong World Industries, Inc. | $163.86 | $7.1B | +308% | 1,541,781 | 377,530 | $274M |
| 6 | ZM | Zoom Communications, Inc. | $76.61 | $22.7B | +298% | 11,923,366 | 2,999,770 | $951M |
| 7 | AXON | Axon Enterprise, Inc. | $496.27 | $39.9B | +297% | 2,737,462 | 689,095 | $1.4B |
| 8 | PSKY | Paramount Skydance Corporation Class B Common Stock | $9.15 | $9.9B | +294% | 27,052,652 | 6,867,179 | $327M |
| 9 | ECG | Everus Construction Group, Inc. | $110.95 | $5.7B | +285% | 2,342,697 | 608,962 | $289M |
| 10 | KEYS | Keysight Technologies, Inc. | $277.53 | $47.6B | +270% | 5,758,316 | 1,554,934 | $1.7B |
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 | CLVT | Clarivate Plc | $2.49 | $1.6B | 297 | 22,025,746 | 74,080 | $49M |
| 2 | UWMC | UWM Holdings Corporation | $3.56 | $5.4B | 283 | 35,725,482 | 126,296 | $152M |
| 3 | OWL | Blue Owl Capital Inc. | $9.12 | $14.3B | 274 | 69,787,804 | 254,588 | $752M |
| 4 | NU | Nu Holdings Ltd. | $13.94 | $67.4B | 255 | 92,035,918 | 360,704 | $1.4B |
| 5 | WBD | Warner Bros. Discovery, Inc. | $27.42 | $68.0B | 234 | 32,809,098 | 139,940 | $938M |
| 6 | F | Ford Motor Company | $11.52 | $45.1B | 227 | 60,091,120 | 264,303 | $854M |
| 7 | AGNC | AGNC Investment Corp. | $9.75 | $10.8B | 216 | 19,405,437 | 89,870 | $219M |
| 8 | AAL | American Airlines Group Inc. | $10.43 | $6.9B | 212 | 36,152,053 | 170,702 | $482M |
| 9 | MPT | Medical Properties Trust, Inc. | $4.56 | $13.5B | 199 | 7,174,166 | 36,129 | $41M |
| 10 | CFLT | Confluent, Inc. | $30.99 | $11.1B | 199 | 10,283,810 | 51,579 | $315M |