Listing (Nasdaq Trader)
Symbol Directory: COHR →Listing ExchangeNYSE (N)
Market Category—
ETFNo
Round Lot Size40 shares
Financial StatusNormal (N)
Test IssueNo
Listing Since2026-09-20 05:30:00 UTC
SEC Ticker EquivalentCOHR
SEC Entity:
View SEC Company Profile (CIK 0000820318) →
Regulatory Flags (Nasdaq Trader)
Symbol: COHRRule 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) |
|---|---|
| 2020-11-12 | 2020-11-11T09:31:02 |
| 2020-11-11 | 2020-11-11T09:31:02 |
| 2020-08-06 | 2020-08-05T11:17:08 |
| 2020-08-05 | 2020-08-05T11:17:08 |
| 2020-03-30 | 2020-03-27T14:17:39 |
| 2020-03-27 | 2020-03-27T14:17:39 |
| 2020-03-19 | 2020-03-18T10:11:21 |
| 2020-03-18 | 2020-03-18T10:11:21 |
| 2020-03-17 | 2020-03-16T09:30:00 |
| 2020-03-16 | 2020-03-16T09:30:00 |
| 2020-03-13 | 2020-03-12T09:34:41 |
| 2020-03-12 | 2020-03-12T09:34:41 |
| 2020-03-10 | 2020-03-09T10:57:36 |
| 2020-03-09 | 2020-03-09T10:57:36 |
| 2019-08-01 | 2019-07-31T09:30:02 |
| 2019-07-31 | 2019-07-31T09:30:02 |
| 2019-01-31 | 2019-01-30T09:30:50 |
| 2019-01-30 | 2019-01-30T09:30:50 |
| 2018-11-13 | 2018-11-12T11:33:25 |
| 2018-11-12 | 2018-11-12T11:33:25 |
| 2018-02-09 | 2018-02-08T09:32:30 |
| 2018-02-08 | 2018-02-08T09:32:30 |
| 2017-08-03 | 2017-08-02T09:30:00 |
| 2017-08-02 | 2017-08-02T09:30:00 |
| 2012-11-02 | 2012-11-01T09:30:00 |
| 2012-11-01 | 2012-11-01T09:30:00 |
| 2011-08-19 | 2011-08-18T15:41:30 |
| 2011-08-18 | 2011-08-18T15:41:30 |
| 2011-07-29 | 2011-07-29T06:25:09 |
| 2011-07-28 | 2011-07-28T10:25:49 |
Nasdaq Trader Listing Event History
4 events recorded| Date | Source | Event Kind | Description |
|---|---|---|---|
| 2014-04-24 | https://web.archive.org/web/20140424061756/http://www.nasdaqtrader.com:80/dynamic/SymDir/nasdaqtraded.txt | ARCHIVED | Listed in archived Nasdaq Trader symbol directory (Wayback Machine snapshot; listing date on or before) |
| 2025-05-05 | CTA.Symbol.File | CTA_FIRST_CAPTURE | Already listed on NYSE at first CTA symbol file |
| 2026-04-30 | CTA.Symbol.File | CTA_CHANGE | Round lot 100 → 40 |
| 2026-09-20 | nasdaqtraded.txt | FIRST_CAPTURE | Already listed on NYSE at first daily capture |
Nasdaq Trader daily captures since 2026-09-20