Hindsight Markets Recaps Small-cap stocks on August 31, 2026
ARTL, August 31: a run to $9.96
ARTL opened near its previous close, then ran to $6.72 during the session.
What happened
Before the open
We found no news or filing before the move. Before the bell it reached $9.96, on 255K shares.
The open
It opened near its previous close, at $5.89. It ran to $6.72 by 11:40 a.m.
The close
It closed at $6.33, 36% 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 down 1.2% at $5.89, then ran from the open to the high of $6.72 in 130 minutes.
| Time (ET) | What happened |
|---|---|
| 9:00 a.m. | First trade 20% above the previous close of $5.96 |
| 9:01 a.m. | Pre-market high, $9.96 |
| 9:01 a.m. | High of the day to the close, $9.96 |
| 9:30 a.m. | The open: $5.89, down 1.2% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $6.33, 36.4% 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
- $5.96
- Open, 9:30 a.m.
- $5.89
- Gap at the open
- −1.2%
- Pre-market high
- $9.96 at 9:01 a.m.
- High, 4 a.m. to 4 p.m.
- $9.96 at 9:01 a.m.
- Low, 4 a.m. to 4 p.m.
- $5.34
- Close, 4 p.m.
- $6.33
- Change at 4 p.m.
- +6.2%
- After-hours high, 4 p.m. to 8 p.m.
- $6.36 at 4:00 p.m.
- Volume, 4 a.m. to 4 p.m.
- 343,988
- Volume after hours, 4 p.m. to 8 p.m.
- 10,150
- Relative volume by 8 p.m.
- 10.3×
- Float
- 510,398 shares, from filings as of August 31, 2026
- Shares outstanding
- 510,563
- Volume, from the one-minute bars: 254,967 shares before the 9:30 a.m. open (72%), 27,164 in the first 30 minutes (8%), and 72,007 in the rest of the day to 8 p.m. (20%).
- Other days ARTL met the small-cap rule in our recaps: 2, the latest on September 23, 2026.
On the day's lists: the intraday runners. It is here because it met the small-cap rule on the intraday runners: 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 ARTL 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 ARTL on August 31, 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.