Hindsight Markets Small-cap stocks on September 9, 2026
HCAI on September 9, 2026: why it ran
On September 9, 2026, HCAI opened down 1.0% from the previous close of 4.07 and reached 4.79 at 4:13 a.m. ET. The exchange did not halt it.
- Previous close
- 4.07
- Open, 9:30 a.m.
- 4.03
- Gap at the open
- down 1.0%
- Pre-market high
- 4.79 at 4:13 a.m.
- High, 4 a.m. to 4 p.m.
- 4.79 at 4:13 a.m.
- Low, 4 a.m. to 4 p.m.
- 4.01
- After-hours high, 4 p.m. to 8 p.m.
- 5.59 at 4:11 p.m.
- Last trade before 4:00 p.m.
- 4.20
- Volume
- 1.25 million
- Relative volume
- 128.2x
- Float
- 7.53 million shares, from filings as of September 9, 2026
- Shares outstanding
- 8.16 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for HCAI published between the previous session's close and the first minute HCAI traded 20% above it, at 4:05 p.m. ET, newest first, from the same feeds the replay shows.
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Huachen AI Parking Management Technology Holding Co., Ltd. Announces Strategic Cooperation with Beyinda Limited to Expand Precision Metal Components Market in China
News via Stock News API
How it traded
| Time (ET) | What happened |
|---|---|
| 4:13 a.m. | Pre-market high, 4.79 |
| 4:13 a.m. | High of the day to the close, 4.79 |
| 9:30 a.m. | The open: 4.03, down 1.0% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 4.20, 12.3% below the high |
| 4:05 p.m. | News (GlobeNewsWire): Huachen AI Parking Management Technology Holding Co., Ltd. Announces Strategic Cooperation with Beyinda Limited to Expand Precision Metal Components Market in China |
| 4:05 p.m. | First trade 20% above the previous close of 4.07 |
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 less than a minute after the latest news item before it (GlobeNewsWire, 4:05 p.m.).
- Volume, from the one-minute bars: 1,288 shares before the 9:30 a.m. open (0%), 294 in the first 30 minutes (0%), and 1.25 million in the rest of the day to 8 p.m. (100%).
- Other days HCAI met the small-cap rule in our recaps: 1, the latest on September 10, 2026.
- The next session, September 10, 2026, it was down 41.4% from its previous close at the 4:00 p.m. close.
Halts
The exchange's halt feed shows no halts for HCAI 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 HCAI on September 9, 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.