卖空份额（暗池和交易所数据）
FBT / First Trust Exchange-Traded Fund - First Trust NYSE Arca Biotechnology Index Fund 卖空份额如下表所示。卖空份额显示在各种交易场所标记为卖空的交易数量。有关如何解释此数据的更多信息，请阅读FINRA提供的此 信息通知。
- FINRA空头份额
- FINRA报告的场外交易空头股票数量。这包括豁免和非豁免
- CBOE空头份额
- CBOE报告的空头份额
- PSX/BX空头份额
- 纳斯达克报告的在PSX/BX交易场所交易的空头股票数量
- 累计空头份额
- FINRA空头份额+芝加哥期货交易所空头份额+PSX/BX空头份额
- 累计总份额
- FINRA总份额+纽约期货交易所总份额+PSX/BX总份额
- 累计空头份额比率
- 累计空头份额/累计交易额
更新频率：每日收盘
| 市场日期 | FINRA 空头份额 |
PSX/BX 空头份额 |
累计 空头份额 |
累计 总份额 |
累计 空头份额比率 |
||||
|---|---|---|---|---|---|---|---|---|---|
| 2025-09-05 | 476 | + | = | / | = | ||||
| 2025-09-04 | 547 | + | 100 | = | 647 | / | 7,803 | = | 8.29 |
| 2025-09-03 | 786 | + | = | / | = | ||||
| 2025-09-02 | 1,344 | + | = | / | = | ||||
| 2025-08-29 | 837 | + | = | / | = | ||||
| 2025-08-28 | 2,060 | + | = | / | = | ||||
| 2025-08-27 | 1,183 | + | 100 | = | 1,283 | / | 11,458 | = | 11.20 |
| 2025-08-26 | 3,456 | + | 800 | = | 4,256 | / | 18,660 | = | 22.81 |
| 2025-08-25 | 168 | + | 0 | = | 168 | / | 4,911 | = | 3.42 |
| 2025-08-22 | 2,199 | + | 0 | = | 2,199 | / | 12,047 | = | 18.25 |
| 2025-08-21 | 646 | + | = | / | = | ||||
| 2025-08-20 | 470 | + | = | / | = | ||||
| 2025-08-19 | 199 | + | 0 | = | 199 | / | 7,229 | = | 2.75 |
| 2025-08-18 | 983 | + | 0 | = | 983 | / | 5,160 | = | 19.05 |
| 2025-08-15 | 666 | + | = | / | = | ||||
| 2025-08-14 | 1,250 | + | 100 | = | 1,350 | / | 8,652 | = | 15.60 |
| 2025-08-13 | 1,982 | + | 0 | = | 1,982 | / | 19,195 | = | 10.33 |
| 2025-08-12 | 929 | + | 0 | = | 929 | / | 8,816 | = | 10.54 |
| 2025-08-11 | 688 | + | 0 | = | 688 | / | 7,031 | = | 9.79 |
