Listing (Nasdaq Trader)
Symbol Directory: DSCO →Listing ExchangeNYSE Arca (P)
Market Category—
ETFYes
Round Lot Size100 shares
Financial StatusNormal (N)
Test IssueNo
Listing Since2026-09-20 05:30:00 UTC
SEC Ticker EquivalentDSCO
Regulatory Flags (Nasdaq Trader)
Symbol: DSCOSEC Regulation SHO Threshold Security Days
Securities with persistent aggregate fail-to-deliver positions exceeding SEC Rule 203(c)(6) thresholds.
Days on List (Last 90 Trading Days)0 days
Total Historical Threshold Days149 days
First Seen on Threshold List2006-06-16
Most Recent Threshold Date2013-11-19
Rule 201 Short Sale Circuit Breakers Triggered
Alternative uptick rule (Rule 201) triggered by a ≥10% price decline from previous day's close (most recent first, up to 50 triggers).
| Trade Date | Trigger Time (ET) |
|---|---|
| 2016-03-30 | 2016-03-29T11:25:07 |
| 2016-03-29 | 2016-03-29T11:25:07 |
| 2016-03-28 | 2016-03-24T09:41:22 |
| 2016-03-24 | 2016-03-24T09:41:22 |
| 2016-03-16 | 2016-03-15T10:22:04 |
| 2016-03-15 | 2016-03-15T10:22:04 |
| 2016-03-10 | 2016-03-09T10:20:32 |
| 2016-03-09 | 2016-03-09T10:20:32 |
| 2016-02-04 | 2016-02-03T09:41:22 |
| 2016-02-03 | 2016-02-02T09:52:45 |
| 2016-02-02 | 2016-02-01T09:42:17 |
| 2016-02-01 | 2016-02-01T09:42:17 |
| 2016-01-29 | 2016-01-28T09:41:04 |
| 2016-01-28 | 2016-01-28T09:41:04 |
| 2016-01-27 | 2016-01-26T10:04:19 |
| 2016-01-26 | 2016-01-25T11:37:02 |
| 2016-01-25 | 2016-01-22T10:25:21 |
| 2016-01-22 | 2016-01-22T10:25:21 |
| 2016-01-21 | 2016-01-20T09:56:18 |
| 2016-01-20 | 2016-01-20T09:56:18 |
| 2016-01-14 | 2016-01-13T10:23:33 |
| 2016-01-13 | 2016-01-13T10:23:33 |
| 2015-12-31 | 2015-12-30T10:50:21 |
| 2015-12-30 | 2015-12-30T10:50:21 |
| 2015-12-15 | 2015-12-14T10:21:13 |
| 2015-12-14 | 2015-12-14T10:21:13 |
| 2015-12-08 | 2015-12-07T11:33:44 |
| 2015-12-07 | 2015-12-07T11:33:44 |
| 2015-11-17 | 2015-11-16T11:06:57 |
| 2015-11-16 | 2015-11-16T11:06:57 |
| 2015-11-13 | 2015-11-12T09:30:00 |
| 2015-11-12 | 2015-11-12T09:30:00 |
| 2015-10-20 | 2015-10-19T13:51:09 |
| 2015-10-19 | 2015-10-19T13:51:09 |
| 2015-09-30 | 2015-09-29T13:28:00 |
| 2015-09-29 | 2015-09-28T10:54:42 |
| 2015-09-28 | 2015-09-28T10:54:42 |
| 2015-09-25 | 2015-09-24T10:36:08 |
| 2015-09-24 | 2015-09-24T10:36:08 |
| 2015-09-22 | 2015-09-21T11:29:35 |
| 2015-09-21 | 2015-09-21T11:29:35 |
| 2015-09-08 | 2015-09-04T09:30:00 |
| 2015-09-04 | 2015-09-04T09:30:00 |
| 2015-08-25 | 2015-08-24T09:38:07 |
| 2015-08-24 | 2015-08-24T09:38:07 |
| 2015-07-22 | 2015-07-21T09:32:30 |
| 2015-07-21 | 2015-07-21T09:32:30 |
| 2015-07-20 | 2015-07-17T09:30:07 |
| 2015-07-17 | 2015-07-17T09:30:07 |
| 2015-05-20 | 2015-05-19T11:42:01 |
Nasdaq Trader Listing Event History
1 event recorded| Date | Source | Event Kind | Description |
|---|---|---|---|
| 2026-09-20 | nasdaqtraded.txt | FIRST_SEEN | Initial listing on NYSE Arca |
Nasdaq Trader daily captures since 2026-09-20