Hindsight Markets Small-cap stocks on September 15, 2026
ERNA on September 15, 2026: why it ran
On September 15, 2026, ERNA opened down 11.1% from the previous close of 4.25 and reached 5.01 at 8:42 a.m. ET. The exchange did not halt it.
- Previous close
- 4.25
- Open, 9:30 a.m.
- 3.78
- Gap at the open
- down 11.1%
- Pre-market high
- 5.01 at 8:42 a.m.
- High, 4 a.m. to 4 p.m.
- 5.01 at 8:42 a.m.
- Low, 4 a.m. to 4 p.m.
- 3.26
- After-hours high, 4 p.m. to 8 p.m.
- 5.00 at 5:45 p.m.
- Last trade before 4:00 p.m.
- 4.00
- Volume
- 288,622
- Relative volume
- 20.6x
- Float
- 1.36 million shares, from filings as of September 15, 2026
- Shares outstanding
- 1.63 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for ERNA published between the previous session's close and the open, newest first, from the same feeds the replay shows.
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Ernexa Therapeutics Reports Positive Disease Modifying ERNA-201 Preclinical Data, Reinforcing iMSC Platform as Company Accelerates Oncology Strategy and ERNA-101 Toward First-in-Human Dosing
News via Stock News API
How it traded
Intraday run. It opened down 11.1% at 3.78, then ran from the open to the high of 4.70 in 45 minutes.
| Time (ET) | What happened |
|---|---|
| 8:42 a.m. | News (GlobeNewsWire): Ernexa Therapeutics Reports Positive Disease Modifying ERNA-201 Preclinical Data, Reinforcing iMSC Platform as Company Accelerates Oncology Strategy and ERNA-101 Toward First-in-Human Dosing |
| 8:42 a.m. | Pre-market high, 5.01 |
| 8:42 a.m. | High of the day to the close, 5.01 |
| 9:30 a.m. | The open: 3.78, down 11.1% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 4.00, 20.2% below the high |
The shape is a fixed rule, not a judgement: gapped 10% or more at the open, ran 10% or more from the open to the high, and faded if it gave back 30% or more of that move by the close.
The day in numbers
- Volume, from the one-minute bars: 207,332 shares before the 9:30 a.m. open (72%), 18,745 in the first 30 minutes (6%), and 62,545 in the rest of the day to 8 p.m. (22%).
- Other days ERNA met the small-cap rule in our recaps: 1, the latest on October 7, 2026.
Halts
The exchange's halt feed shows no halts for ERNA that day.
On this date the LULD plan ran under Amendment 18, in force from February 24, 2020: no band doubling at the open, and the closing doubling only for Tier 1 stocks and Tier 2 stocks whose previous close was at or below three dollars. See LULD halts or work out a band with the LULD calculator.
Trade this day
Replay ERNA on September 15, 2026 in Hindsight Markets: the real tape, the order book and the halts, on a clock you control, and see where your orders would have filled.