Dark pool tracker: weekly FINRA dark pool volume, per ticker and per pool
FINRA weekly ATS transparency data · per ticker · per dark pool · ticker lookup · lag stated plainly
Weekly FINRA data, published on a delay. Week shown: Sep 28 to Oct 2, 2026. FINRA first published this week's NMS Tier 1 file on Oct 19, 2026, 17 days after the week ended. These are the newest weekly numbers FINRA has published, not a live feed.
In the FINRA trading week of Sep 28 to Oct 2, 2026, 291 tracked tickers traded a combined 3.1B shares in dark pools, led by HYG with 114.8M shares across 29 dark pools, FINRA first published this week's NMS Tier 1 file on Oct 19, 2026.
The latest published week
Top dark pool volume, week of Sep 28 to Oct 2, 2026
| Ticker | Company | Dark pool shares | Trades | Dark share of off-exchange | Chart |
|---|---|---|---|---|---|
| HYG | iShares iBoxx $ High Yield Corporate Bond ETF | 114.8M | 178,594 | 35% | Chart |
| NU | Nu Holdings Ltd. | 109.6M | 300,637 | 36% | Chart |
| NVDA | NVIDIA Corporation Common Stock | 73.6M | 852,189 | 26% | Chart |
| SPCX | Space Exploration Technologies Corp. Class A Common Stock | 66.7M | 644,953 | 31% | Chart |
| WBD | Warner Bros. Discovery, Inc. Series A Common Stock | 63.0M | 113,689 | 34% | Chart |
| TLT | iShares 20 Year Treasury Bond ETF | 60.9M | 193,840 | 41% | Chart |
| SPY | State Street SPDR S&P 500 ETF Trust | 58.2M | 515,080 | 54% | Chart |
| INTC | Intel Corporation Common Stock | 54.6M | 643,505 | 21% | Chart |
| LQD | iShares iBoxx $ Investment Grade Corporate Bond ETF | 51.6M | 133,144 | 47% | Chart |
| NKE | Nike, Inc. | 51.5M | 348,265 | 30% | Chart |
Top 10 of the 291 tracked tickers in this week's published FINRA file (stock seed + active movers universe), not the whole market. FINRA reports share counts and trade counts only: no prices, no trade sizes, no sides.
Per dark pool
Where the top tickers traded, per dark pool
HYG traded across 29 dark pools; top 3: INTELLIGENT CROSS LLC 24.5M shares, 33,250 trades (21% of its dark pool volume) · SIGMA X2 14.3M shares, 30,723 trades (12% of its dark pool volume) · UBS ATS 13.4M shares, 25,622 trades (12% of its dark pool volume)
NU traded across 33 dark pools; top 3: INTELLIGENT CROSS LLC 13.0M shares, 32,661 trades (12% of its dark pool volume) · UBS ATS 12.3M shares, 26,621 trades (11% of its dark pool volume) · LEVEL ATS 8.8M shares, 36,682 trades (8% of its dark pool volume)
NVDA traded across 31 dark pools; top 3: UBS ATS 10.6M shares, 137,497 trades (14% of its dark pool volume) · INTELLIGENT CROSS LLC 8.9M shares, 124,448 trades (12% of its dark pool volume) · IBKR ATS 5.8M shares, 50,523 trades (8% of its dark pool volume)
SPCX traded across 31 dark pools; top 3: IBKR ATS 8.8M shares, 67,478 trades (13% of its dark pool volume) · UBS ATS 7.7M shares, 87,514 trades (12% of its dark pool volume) · INTELLIGENT CROSS LLC 7.4M shares, 87,368 trades (11% of its dark pool volume)
WBD traded across 29 dark pools; top 3: INTELLIGENT CROSS LLC 8.9M shares, 15,324 trades (14% of its dark pool volume) · UBS ATS 7.5M shares, 10,481 trades (12% of its dark pool volume) · INSTINCT X 5.9M shares, 7,377 trades (9% of its dark pool volume)
What a tracker can and cannot see
What a dark pool tracker can and cannot see
A tracker can see
- Which dark pools (alternative trading systems) reported your ticker in the latest FINRA weekly file, and how many shares and trades each one carried
- The dark pool share of a ticker's FINRA-reported off-exchange volume, and the 8-week trend per ticker
- Which venues lead: Intelligent Cross, UBS ATS, Sigma X2 and the rest of the roughly 34 active FINRA-reporting dark pools
No tracker can see
- Live dark pool prints. There is no live per-print ATS feed at retail; anyone promising one is overstating their data source
- Prices, trade sizes, or whether the volume was buying or selling. The FINRA weekly file carries share counts and trade counts only
- Dark pools' share of total market volume. FINRA's file covers off-exchange volume only, so we never present it as a share of the whole tape
What we track, and when. Tapeboard publishes the FINRA OTC Transparency weekly file for hundreds of tracked tickers, frozen per week: per-ticker dark pool volume, per dark pool, plus the non-ATS off-exchange channel. It is weekly FINRA data, published about 2.5 weeks after the week ends for large caps (NMS Tier 1), about 4.5 weeks for smaller caps. Nothing fresher exists until FINRA publishes the next week, and we state the lag plainly instead of dressing delayed data up as live.
Look up any ticker
Look up any tracked ticker
Search the 573 tickers with FINRA dark pool data. Matching goes to the ticker's weekly dark pool page. The live page at this address searches as you type; every match opens that ticker's weekly dark pool page.
A · AACG · AAME · AAPL · ABBV · ABNB · ABT · ABVX · ACN · ACYQ · ADBE · ADI · ADP · ADVB · AEHL · AEP · AERT · AFL · AFRM · AGG · AGMH · AGRZ · AIG · AIIO · AIXI · ALEC · ALHC · ALL · ALP · AMAT · AMC · AMD · AMGN · AMOD · AMT · AMTD · AMZN · ANET · ANPA · AON
Pair it with
Pair it with
- Dark pool scanner: the honest lit-tape proxy
- Open the unusual volume scanner now
- Dilution feed: recent offering and shelf filings
- Dark pool hub: every tracked ticker by week
- Live charts with the full terminal
FAQ
What is a dark pool tracker?
A tool that shows which dark pools (alternative trading systems) reported volume in a ticker, and how much. An honest one runs on FINRA's weekly ATS transparency file, because that is the only dark pool data that exists at retail. This tracker shows the latest published FINRA week per ticker and per dark pool, with the publication lag stated on every view.
Where can I see dark pool prints?
Not live, and not at retail. Dark pool trades report to FINRA, which publishes them aggregated per week, on a delay. The closest live signal is unusual volume on the lit exchanges, which is why our dark pool scanner page explains that proxy honestly. The weekly FINRA archive here is the real record.
How current is the data on this page?
Weekly FINRA data, published about 2.5 weeks after the week ends for large caps (NMS Tier 1), about 4.5 weeks for smaller caps. Each table states the exact FINRA week it shows and the date FINRA first published that week's file. These are the newest weekly numbers FINRA has published, not a live feed.
Does heavy dark pool volume mean big investors are buying?
No. Dark pool volume is hidden liquidity: it says where institutions chose to trade away from the lit exchanges, nothing about direction. FINRA reports share counts and trade counts, not prices, sizes, or sides. A week of heavy dark pool volume can accompany accumulation, distribution, or two-sided market making.