Hindsight Markets Recaps Small-cap stocks on September 15, 2026
AIXI, September 15: an after-hours run to $4.20
AIXI barely moved in the regular session, then ran to $4.20 after the close.
What happened
Before the open
We found no news or filing before the move. Before the bell it reached $2.49, on 7K shares.
The open
It opened near its previous close, at $2.37.
The close
It closed at $2.32, 7% under its high. After the close it ran to $4.20 by 4:16 p.m.
What to take from it: The day's real move came after the 4 p.m. close, not in the regular session.
The details
How it traded, step by step
After-hours run. It opened down 0.8% at $2.37 and traded at $2.32 at the 4:00 p.m. close, then ran 81.0% from $2.32 to $4.20 at 4:16 p.m. after the close, on 2.17 million shares traded after hours.
| Time (ET) | What happened |
|---|---|
| 5:27 a.m. | Pre-market high, $2.49 |
| 5:27 a.m. | High of the day to the close, $2.49 |
| 9:30 a.m. | The open: $2.37, down 0.8% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $2.32, 6.8% below the high |
| 4:12 p.m. | First trade 20% above the previous close of $2.39 |
| 4:15 p.m. | Volume since 4:00 a.m. passes the whole float, 391,038 shares |
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
- $2.39
- Open, 9:30 a.m.
- $2.37
- Gap at the open
- −0.8%
- Pre-market high
- $2.49 at 5:27 a.m.
- High, 4 a.m. to 4 p.m.
- $2.49 at 5:27 a.m.
- Low, 4 a.m. to 4 p.m.
- $2.30
- Close, 4 p.m.
- $2.32
- Change at 4 p.m.
- −2.9%
- After-hours high, 4 p.m. to 8 p.m.
- $4.20 at 4:16 p.m.
- Volume, 4 a.m. to 4 p.m.
- 34,205
- Volume after hours, 4 p.m. to 8 p.m.
- 2.17 million
- Relative volume by 8 p.m.
- 1.7×
- Float
- 391,038 shares, from filings as of September 15, 2026
- Shares outstanding
- 406,670
- Volume, from the one-minute bars: 7,461 shares before the 9:30 a.m. open (0%), 2,221 in the first 30 minutes (0%), and 2.19 million in the rest of the day to 8 p.m. (100%).
- Float rotation, the volume since 4 a.m. against the float of 391,038 shares: past it once at 4:15 p.m., twice at 4:16 p.m., three times at 4:17 p.m.
- Other days AIXI met the small-cap rule in our recaps: 11, the latest on October 23, 2026.
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 AIXI 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 AIXI 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.