Hindsight Markets Recaps Small-cap stocks on September 22, 2026
GDC, September 22: a run to $2.13
GDC opened up 25%, ran to $2.13, then fell below its open by the close.
What happened
Before the open
We found no news or filing before the move. Before the bell it reached $2.08, on 3.7M shares.
The open
It opened up 25%, at $1.83. It ran to $2.13 by 9:44 a.m.
The close
It closed at $1.60, 25% under its high.
What to take from it: The whole move was given back: it finished below the price it opened at.
The details
How it traded, step by step
Gap, run and fade. It gapped up 25.3% to $1.83 at the open, ran from the open to the high of $2.13 in 14 minutes, then gave back 177% of that move by 4:00 p.m., trading at $1.60, below the open.
| Time (ET) | What happened |
|---|---|
| 4:00 a.m. | First trade 20% above the previous close of $1.46 |
| 6:21 a.m. | Pre-market high, $2.08 |
| 9:30 a.m. | The open: $1.83, up 25.3% from the previous close |
| 9:40 a.m. | Volume since 4:00 a.m. passes the whole float, 4.08 million shares |
| 9:44 a.m. | High of the day to the close, $2.13 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, $1.60, 24.9% 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
- $1.46
- Open, 9:30 a.m.
- $1.83
- Gap at the open
- +25.3%
- Pre-market high
- $2.08 at 6:21 a.m.
- High, 4 a.m. to 4 p.m.
- $2.13 at 9:44 a.m.
- Low, 4 a.m. to 4 p.m.
- $1.48
- Close, 4 p.m.
- $1.60
- Change at 4 p.m.
- +9.6%
- After-hours high, 4 p.m. to 8 p.m.
- $1.72 at 7:07 p.m.
- Volume, 4 a.m. to 4 p.m.
- 7.47 million
- Volume after hours, 4 p.m. to 8 p.m.
- 118,867
- Relative volume by 8 p.m.
- 24.5×
- Float
- 4.08 million shares, from filings as of September 22, 2026
- Shares outstanding
- 4.16 million
- Volume, from the one-minute bars: 3.65 million shares before the 9:30 a.m. open (48%), 1.25 million in the first 30 minutes (16%), and 2.68 million in the rest of the day to 8 p.m. (35%).
- Float rotation, the volume since 4 a.m. against the float of 4.08 million shares: past it once at 9:40 a.m.
- Other days GDC met the small-cap rule in our recaps: 3, the latest on September 21, 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 GDC 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 GDC on September 22, 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.