Hindsight Markets Recaps Small-cap stocks on September 18, 2026
SLMT, September 18: a run to $3.53
SLMT opened near its previous close, then ran to $3.42 during the session.
What happened
Before the open
We found no news or filing before the move. Before the bell it reached $3.53, on 26K shares.
The open
It opened near its previous close, at $3.00. It ran to $3.42 by 3:45 p.m.
The close
It closed at $3.31, 6% under its high.
What to take from it: The move came during the session, not at the open.
The details
How it traded, step by step
Intraday run. It opened up 2.4% at $3.00, then ran from the open to the high of $3.42 in 375 minutes.
| Time (ET) | What happened |
|---|---|
| 6:11 a.m. | First trade 20% above the previous close of $2.93 |
| 6:11 a.m. | Pre-market high, $3.53 |
| 6:11 a.m. | High of the day to the close, $3.53 |
| 9:30 a.m. | The open: $3.00, up 2.4% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $3.31, 6.2% 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
- $2.93
- Open, 9:30 a.m.
- $3.00
- Gap at the open
- +2.4%
- Pre-market high
- $3.53 at 6:11 a.m.
- High, 4 a.m. to 4 p.m.
- $3.53 at 6:11 a.m.
- Low, 4 a.m. to 4 p.m.
- $2.91
- Close, 4 p.m.
- $3.31
- Change at 4 p.m.
- +13.0%
- After-hours high, 4 p.m. to 8 p.m.
- $3.38 at 7:06 p.m.
- Volume, 4 a.m. to 4 p.m.
- 483,488
- Volume after hours, 4 p.m. to 8 p.m.
- 30,989
- Relative volume by 8 p.m.
- 15.2×
- Float
- 3.37 million shares, from filings as of September 18, 2026
- Shares outstanding
- 11.01 million
- Volume, from the one-minute bars: 25,796 shares before the 9:30 a.m. open (5%), 13,680 in the first 30 minutes (3%), and 475,001 in the rest of the day to 8 p.m. (92%).
- In our recaps, this is the only day SLMT met the small-cap rule.
On the day's lists: the gainers. It is here because it met the small-cap rule on the gainers: 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 SLMT 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 SLMT on September 18, 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.