Hindsight Markets Small-cap stocks on September 15, 2026
HQ on September 15, 2026: why it ran
On September 15, 2026, HQ opened down 0.4% from the previous close of 10.34 and reached 14.20 at 2:30 p.m. ET. The exchange halted it once.
- Previous close
- 10.34
- Open, 9:30 a.m.
- 10.30
- Gap at the open
- down 0.4%
- Pre-market high
- 10.47 at 5:10 a.m.
- High, 4 a.m. to 4 p.m.
- 14.20 at 2:30 p.m.
- Low, 4 a.m. to 4 p.m.
- 9.92
- After-hours high, 4 p.m. to 8 p.m.
- 13.49 at 5:11 p.m.
- Last trade before 4:00 p.m.
- 13.23
- Volume
- 1.21 million
- Relative volume
- 6.4x
- Float
- 18.00 million shares, from filings as of September 15, 2026
- Shares outstanding
- 34.23 million
Why it ran
News and SEC filings for HQ published between the previous session's close and the first minute HQ traded 20% above it, at 1:30 p.m. ET, newest first, from the same feeds the replay shows.
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Horizon Quantum Clarifies Certain Information Regarding the Company
News via Stock News API
How it traded
Intraday run. It opened down 0.4% at 10.30, then ran from the open to the high of 14.20 in 300 minutes through a halt.
| Time (ET) | What happened |
|---|---|
| 5:10 a.m. | Pre-market high, 10.47 |
| 9:15 a.m. | News (Business Wire): Horizon Quantum Clarifies Certain Information Regarding the Company |
| 9:30 a.m. | The open: 10.30, down 0.4% from the previous close |
| 1:30 p.m. | First trade 20% above the previous close of 10.34 |
| 1:31 p.m. | Halted: LULD pause (limit up-limit down). Trading resumes at 1:36 p.m. |
| 2:30 p.m. | High of the day to the close, 14.20 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 13.23, 6.8% 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
- From news to the move: the first trade 20% above the previous close came 4 hours 15 minutes after the latest news item before it (Business Wire, 9:15 a.m.).
- Volume, from the one-minute bars: 19,146 shares before the 9:30 a.m. open (2%), 51,093 in the first 30 minutes (4%), and 1.14 million in the rest of the day to 8 p.m. (94%).
- The halt at 1:31 p.m.: up 14.2% in the 5 minutes into it, reopened at 12.57, up 0.1% from the last trade before it, then down 3.2% over the next 5 minutes.
- In our recaps, this is the only day HQ met the small-cap rule.
Halts
| Halted | Resumed | Length | Reason in the feed |
|---|---|---|---|
| 1:31 p.m. | 1:36 p.m. | 5 min 0 s | LULD pause (limit up-limit down) |
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 HQ 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.