XBI · State Street(R) SPDR(R) S&P(R) Biotech ETF ETF
$163.81
-0.57 (-0.35%)
At close · Sep 4
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 |
|---|---|---|---|---|
| 2026-07-27 | 9,254,390 | 3,564,113 | 12,818,503 | 30.5% |
| 2026-07-20 | 6,938,925 | 5,642,004 | 12,580,929 | 35.1% |
| 2026-07-13 | 8,679,480 | 6,606,403 | 15,285,883 | 32.8% |
| 2026-07-06 | 9,134,740 | 9,028,143 | 18,162,883 | 38.2% |
| 2026-06-29 | 8,112,101 | 6,642,758 | 14,754,859 | 38.3% |
| 2026-06-22 | 13,136,036 | 9,637,011 | 22,773,047 | 35.4% |
| 2026-06-15 | 6,893,160 | 4,024,393 | 10,917,553 | 28.0% |
| 2026-06-08 | 9,088,468 | 3,218,895 | 12,307,363 | 27.7% |
| 2026-06-01 | 9,619,456 | 4,786,369 | 14,405,825 | 31.3% |
| 2026-05-25 | 4,593,412 | 3,258,002 | 7,851,414 | 29.0% |
| 2026-05-18 | 8,401,854 | 5,505,017 | 13,906,871 | 31.5% |
| 2026-05-11 | 7,328,656 | 5,993,086 | 13,321,742 | 35.4% |
| 2026-05-04 | 9,148,985 | 6,633,948 | 15,782,933 | 33.0% |
| 2026-04-27 | 7,604,641 | 4,865,994 | 12,470,635 | 31.6% |
| 2026-04-20 | 6,208,262 | 6,071,714 | 12,279,976 | 38.4% |
| 2026-04-13 | 8,489,155 | 6,213,621 | 14,702,776 | 33.0% |
| 2026-04-06 | 7,499,036 | 7,033,521 | 14,532,557 | 37.1% |
| 2026-03-30 | 9,480,248 | 6,284,248 | 15,764,496 | 27.3% |
| 2026-03-23 | 9,254,367 | 5,656,971 | 14,911,338 | 28.5% |
| 2026-03-16 | 7,271,095 | 6,386,471 | 13,657,566 | 29.4% |
| 2026-03-09 | 9,140,094 | 5,621,621 | 14,761,715 | 28.6% |
| 2026-03-02 | 9,544,107 | 5,629,304 | 15,173,411 | 28.7% |
| 2026-02-23 | 6,505,919 | 7,116,639 | 13,622,558 | 30.1% |
| 2026-02-16 | 4,937,694 | 10,105,592 | 15,043,286 | 41.1% |
| 2026-02-09 | 6,614,035 | 6,512,990 | 13,127,025 | 37.9% |
| 2026-02-02 | 9,933,965 | 9,263,139 | 19,197,104 | 37.8% |
| 2026-01-26 | 7,695,557 | 5,953,359 | 13,648,916 | 35.4% |
| 2026-01-19 | 6,777,448 | 7,840,836 | 14,618,284 | 36.3% |
| 2026-01-12 | 8,811,752 | 9,245,425 | 18,057,177 | 36.3% |
| 2026-01-05 | 11,295,653 | 10,951,314 | 22,246,967 | 34.5% |
| 2025-12-29 | 5,889,039 | 6,738,620 | 12,627,659 | 40.2% |
| 2025-12-22 | 4,618,133 | 5,025,083 | 9,643,216 | 36.7% |
| 2025-12-15 | 7,956,694 | 7,003,523 | 14,960,217 | 34.4% |
| 2025-12-08 | 9,281,609 | 6,949,273 | 16,230,882 | 37.4% |
| 2025-12-01 | 9,538,948 | 13,206,946 | 22,745,894 | 36.5% |
| 2025-11-24 | 6,187,331 | 6,693,900 | 12,881,231 | 38.3% |
| 2025-11-17 | 8,238,414 | 9,552,472 | 17,790,886 | 30.6% |
| 2025-11-10 | 9,980,169 | 13,357,952 | 23,338,121 | 35.0% |
| 2025-11-03 | 10,321,902 | 9,561,023 | 19,882,925 | 30.8% |
| 2025-10-27 | 8,375,025 | 10,363,465 | 18,738,490 | 35.5% |
| 2025-10-20 | 6,282,891 | 4,949,611 | 11,232,502 | 29.4% |
| 2025-10-13 | 9,201,579 | 13,810,656 | 23,012,235 | 40.0% |
| 2025-10-06 | 8,632,784 | 9,846,833 | 18,479,617 | 33.2% |
| 2025-09-29 | 8,982,629 | 10,503,404 | 19,486,033 | 36.0% |
| 2025-09-22 | 6,709,785 | 10,354,629 | 17,064,414 | 34.7% |
| 2025-09-15 | 7,029,081 | 6,282,006 | 13,311,087 | 28.2% |
| 2025-09-08 | 5,656,160 | 6,474,063 | 12,130,223 | 27.0% |
Showing 1–47 of 47 weeks