Hindsight Markets Recaps Small-cap stocks on October 28, 2026
AIOK, October 28: a run to $29.90
AIOK opened up 30%, ran to $29.90, and held most of the move into the close.
What happened
Before the open
We found no news or filing before the move. Before the bell it reached $18.50, on 3.4M shares.
The open
It opened up 30%, at $17.51. It ran to $29.90 by 3:35 p.m.
The close
It closed at $28.01, 6% under its high.
What to take from it: A gap that holds above its open can keep going: this one held most of its move to the close.
The details
How it traded, step by step
Gap and go. It gapped up 30.5% to $17.51 at the open, ran from the open to the high of $29.90 in 365 minutes, and held most of the move into the close: it gave back 15% of it by 4:00 p.m.
| Time (ET) | What happened |
|---|---|
| 7:28 a.m. | First trade 20% above the previous close of $13.42 |
| 7:38 a.m. | Volume since 4:00 a.m. passes the whole float, 1.11 million shares |
| 8:57 a.m. | Pre-market high, $18.50 |
| 9:30 a.m. | The open: $17.51, up 30.5% from the previous close |
| 3:35 p.m. | High of the day to the close, $29.90 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $28.01, 6.3% 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
- $13.42
- Open, 9:30 a.m.
- $17.51
- Gap at the open
- +30.5%
- Pre-market high
- $18.50 at 8:57 a.m.
- High, 4 a.m. to 4 p.m.
- $29.90 at 3:35 p.m.
- Low, 4 a.m. to 4 p.m.
- $13.40
- Close, 4 p.m.
- $28.01
- Change at 4 p.m.
- +108.7%
- After-hours high, 4 p.m. to 8 p.m.
- $33.96 at 4:57 p.m.
- Volume, 4 a.m. to 4 p.m.
- 10.12 million
- Volume after hours, 4 p.m. to 8 p.m.
- 1.41 million
- Relative volume by 8 p.m.
- 6.9×
- Float
- 1.11 million shares, from filings as of October 28, 2026
- Shares outstanding
- 4.32 million
- Volume, from the one-minute bars: 3.36 million shares before the 9:30 a.m. open (29%), 1.15 million in the first 30 minutes (10%), and 7.02 million in the rest of the day to 8 p.m. (61%).
- Float rotation, the volume since 4 a.m. against the float of 1.11 million shares: past it once at 7:38 a.m., twice at 8:42 a.m., three times at 9:27 a.m.
- Other days AIOK met the small-cap rule in our recaps: 4, the latest on November 4, 2026.
On the day's lists: the pre-market gappers, intraday runners. It is here because it met the small-cap rule on the pre-market gappers: price $2 to $20, up 10% or more, relative volume 5× or more, float under 20 million shares, 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 AIOK 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 AIOK on October 28, 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.