MPLX · Mplx LP · Off Exchange
Market Cap
$57.59B
Shares
1.01B
Volume · Oct 1
149.08K
Avg daily vol (3M)
1.41M
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-08-24 | 700,183 | 1,276,176 | 1,976,359 | 44.5% |
| 2026-08-17 | 1,142,716 | 1,613,440 | 2,756,156 | 47.9% |
| 2026-08-10 | 1,139,827 | 1,644,926 | 2,784,753 | 42.2% |
| 2026-08-03 | 1,892,079 | 1,875,506 | 3,767,585 | 40.9% |
| 2026-07-27 | 1,890,633 | 2,861,383 | 4,752,016 | 49.1% |
| 2026-07-20 | 1,337,694 | 1,998,046 | 3,335,740 | 43.8% |
| 2026-07-13 | 959,182 | 2,749,999 | 3,709,181 | 50.1% |
| 2026-07-06 | 1,194,389 | 1,520,405 | 2,714,794 | 44.9% |
| 2026-06-29 | 663,986 | 1,154,657 | 1,818,643 | 47.2% |
| 2026-06-22 | 1,367,915 | 1,360,956 | 2,728,871 | 40.4% |
| 2026-06-15 | 1,056,958 | 1,456,977 | 2,513,935 | 33.6% |
| 2026-06-08 | 1,222,297 | 1,345,129 | 2,567,426 | 34.5% |
| 2026-06-01 | 1,279,144 | 1,409,314 | 2,688,458 | 37.5% |
| 2026-05-25 | 1,611,195 | 1,566,581 | 3,177,776 | 41.7% |
| 2026-05-18 | 1,553,552 | 1,647,485 | 3,201,037 | 42.6% |
| 2026-05-11 | 1,543,816 | 5,467,951 | 7,011,767 | 54.4% |
| 2026-05-04 | 2,423,649 | 6,737,516 | 9,161,165 | 56.6% |
| 2026-04-27 | 1,665,066 | 5,416,554 | 7,081,620 | 53.8% |
| 2026-04-20 | 1,192,945 | 5,104,497 | 6,297,442 | 60.6% |
| 2026-04-13 | 1,284,913 | 7,003,429 | 8,288,342 | 68.1% |
| 2026-04-06 | 1,293,353 | 2,996,124 | 4,289,477 | 50.2% |
| 2026-03-30 | 2,028,447 | 2,666,754 | 4,695,201 | 51.5% |
| 2026-03-23 | 1,291,522 | 1,746,023 | 3,037,545 | 45.9% |
| 2026-03-16 | 1,478,361 | 1,895,095 | 3,373,456 | 37.5% |
| 2026-03-09 | 1,621,914 | 1,560,937 | 3,182,851 | 43.7% |
| 2026-03-02 | 1,350,490 | 1,881,544 | 3,232,034 | 46.6% |
| 2026-02-23 | 1,097,778 | 2,051,564 | 3,149,342 | 46.1% |
| 2026-02-16 | 1,434,498 | 1,950,940 | 3,385,438 | 45.1% |
| 2026-02-09 | 1,742,498 | 7,307,357 | 9,049,855 | 63.8% |
| 2026-02-02 | 2,447,717 | 3,198,980 | 5,646,697 | 46.9% |
| 2026-01-26 | 1,407,148 | 2,061,361 | 3,468,509 | 45.7% |
| 2026-01-19 | 1,165,408 | 1,542,515 | 2,707,923 | 50.0% |
| 2026-01-12 | 1,202,991 | 2,148,015 | 3,351,006 | 44.1% |
| 2026-01-05 | 1,306,302 | 2,453,125 | 3,759,427 | 46.2% |
| 2025-12-29 | 874,547 | 2,071,989 | 2,946,536 | 55.8% |
| 2025-12-22 | 612,258 | 902,295 | 1,514,553 | 48.6% |
| 2025-12-15 | 1,254,333 | 1,947,783 | 3,202,116 | 32.3% |
| 2025-12-08 | 1,005,990 | 1,913,736 | 2,919,726 | 49.1% |
| 2025-12-01 | 1,111,355 | 2,298,333 | 3,409,688 | 50.4% |
| 2025-11-24 | 1,088,017 | 1,196,700 | 2,284,717 | 42.6% |
| 2025-11-17 | 994,018 | 2,229,749 | 3,223,767 | 47.8% |
| 2025-11-10 | 1,376,758 | 3,889,280 | 5,266,038 | 51.1% |
| 2025-11-03 | 2,172,497 | 3,243,444 | 5,415,941 | 44.7% |
| 2025-10-27 | 1,211,826 | 2,613,175 | 3,825,001 | 51.9% |
| 2025-10-20 | 1,348,299 | 2,294,594 | 3,642,893 | 50.1% |
| 2025-10-13 | 1,299,811 | 1,784,645 | 3,084,456 | 44.8% |
| 2025-10-06 | 1,599,455 | 2,723,548 | 4,323,003 | 49.2% |
Showing 1–47 of 47 weeks
Key facts
CIK
1552000
CUSIP
55336V100
13F (30d)
11 filings
9 filers
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