Hindsight Markets Recaps Small-cap stocks on September 1, 2026
AMBR, September 1: news and a gap that faded
AMBR opened up 21% after news, then faded below its open by the close.
News via Stock News API
What happened
Before the open
The news came first: news at 3:30 a.m. Before the bell it reached $1.60, on 7.1M shares.
The open
It opened up 21%, at $1.40.
The close
It closed at $0.88, 45% under its high.
What to take from it: A big gap is not a trend. This one traded below its open by the close.
The details
How it traded, step by step
Gap and fade. It gapped up 20.7% to $1.40 at the open and traded below the open by 4:00 p.m., at $0.88.
| Time (ET) | What happened |
|---|---|
| 3:30 a.m. | News (PRNewsWire): Amber Premium Transforms into AMBR, Dedicated to Building Specialized AI Agents for Finance, Enterprise, and Growth |
| 4:08 a.m. | First trade 20% above the previous close of $1.16 |
| 4:45 a.m. | Pre-market high, $1.60 |
| 4:45 a.m. | High of the day to the close, $1.60 |
| 9:30 a.m. | The open: $1.40, up 20.7% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $0.88, 45.0% below the high |
The shape's name comes from a fixed rule, not a judgement (how shapes are named). Halts are in the halt table below.
The day in numbers
- Previous close
- $1.16
- Open, 9:30 a.m.
- $1.40
- Gap at the open
- +20.7%
- Pre-market high
- $1.60 at 4:45 a.m.
- High, 4 a.m. to 4 p.m.
- $1.60 at 4:45 a.m.
- Low, 4 a.m. to 4 p.m.
- $0.8603
- Close, 4 p.m.
- $0.88
- Change at 4 p.m.
- −24.1%
- After-hours high, 4 p.m. to 8 p.m.
- $1.14 at 7:28 p.m.
- Volume, 4 a.m. to 4 p.m.
- 8.42 million
- Volume after hours, 4 p.m. to 8 p.m.
- 254,966
- Relative volume by 8 p.m.
- 377.6×
- Float
- 152.67 million shares, from filings as of September 1, 2026
- Shares outstanding
- 188.11 million
- From news to the move: the first trade 20% above the previous close came 38 minutes after the latest news item before it (PRNewsWire, 3:30 a.m.).
- Volume, from the one-minute bars: 7.12 million shares before the 9:30 a.m. open (82%), 534,287 in the first 30 minutes (6%), and 1.02 million in the rest of the day to 8 p.m. (12%).
- In our recaps, this is the only day AMBR met the small-cap rule.
On the day's lists: the intraday runners. It is here because it was in play on the intraday runners: up 30% or more on $3 million or more really traded, outside the small-cap rule's price, relative volume or float, its high reached $1 or more and it started the day at $20 or under (the rule every page uses).
Halts (none)
The exchange's halt feed shows no halts for AMBR that day.
Halt bands that day: the LULD plan's Amendment 18 rules (what that means, LULD calculator).
How we read the data, name a day's shape and pick the stocks: methodology.
Trade this day
Replay AMBR on September 1, 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.