卖空份额（暗池和交易所数据）
UMDD / ProShares Trust - ProShares UltraPro MidCap400 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 |
||||
|---|---|---|---|---|---|---|---|---|---|
| 2025-09-11 | 1,176 | + | 100 | = | 1,276 | / | 18,116 | = | 7.04 |
| 2025-09-10 | 642 | + | 100 | = | 742 | / | 5,909 | = | 12.56 |
| 2025-09-09 | 6,083 | + | 400 | = | 6,483 | / | 9,778 | = | 66.30 |
| 2025-09-08 | 43 | + | 0 | = | 43 | / | 2,005 | = | 2.14 |
| 2025-09-05 | 1,958 | + | 300 | = | 2,258 | / | 7,594 | = | 29.73 |
| 2025-09-04 | 764 | + | 0 | = | 764 | / | 6,309 | = | 12.11 |
| 2025-09-03 | 127 | + | 0 | = | 127 | / | 2,729 | = | 4.65 |
| 2025-09-02 | 709 | + | 0 | = | 709 | / | 3,971 | = | 17.85 |
| 2025-08-29 | 284 | + | 0 | = | 284 | / | 2,869 | = | 9.90 |
| 2025-08-28 | 871 | + | 218 | = | 1,089 | / | 12,562 | = | 8.67 |
| 2025-08-27 | 2,412 | + | 200 | = | 2,612 | / | 21,871 | = | 11.94 |
| 2025-08-26 | 10,977 | + | 0 | = | 10,977 | / | 15,063 | = | 72.87 |
| 2025-08-25 | 937 | + | 0 | = | 937 | / | 3,004 | = | 31.19 |
| 2025-08-22 | 3,483 | + | = | / | = | ||||
| 2025-08-21 | 293 | + | = | / | = | ||||
| 2025-08-20 | 403 | + | = | / | = | ||||
| 2025-08-19 | 863 | + | 100 | = | 963 | / | 3,003 | = | 32.07 |
| 2025-08-18 | 801 | + | = | / | = | ||||
| 2025-08-15 | 414 | + | = | / | = | ||||
| 2025-08-14 | 3,158 | + | = | / | = | ||||
| 2025-08-13 | 641 | + | 300 | = | 941 | / | 4,393 | = | 21.42 |
