Hindsight Markets Small-cap stocks on September 1, 2026
GPRO on September 1, 2026: why it ran
On September 1, 2026, GPRO opened up 54.1% from the previous close of 0.8762 and reached 1.83 at 6:23 a.m. ET. The exchange halted it once.
- Previous close
- 0.8762
- Open, 9:30 a.m.
- 1.35
- Gap at the open
- up 54.1%
- Pre-market high
- 1.83 at 6:23 a.m.
- High, 4 a.m. to 4 p.m.
- 1.83 at 6:23 a.m.
- Low, 4 a.m. to 4 p.m.
- 1.16
- After-hours high, 4 p.m. to 8 p.m.
- 1.25 at 4:00 p.m.
- Last trade before 4:00 p.m.
- 1.24
- Volume
- 184.85 million
- Relative volume
- 36.9x
- Float
- 152.27 million shares, from filings as of September 1, 2026
- Shares outstanding
- 184.50 million
Why it ran
News and SEC filings for GPRO published between the previous session's close and the first minute GPRO traded 20% above it, at 4:00 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Gap, run and fade. It gapped up 54.1% to 1.35 at the open, ran from the open to the high of 1.64 in 52 minutes, then gave back 140% of that move by 4:00 p.m., trading at 1.24.
| Time (ET) | What happened |
|---|---|
| 4:00 a.m. | First trade 20% above the previous close of 0.8762 |
| 6:23 a.m. | Pre-market high, 1.83 |
| 6:23 a.m. | High of the day to the close, 1.83 |
| 9:15 a.m. | Halted: News pending. Trading resumes at 10:00 a.m. |
| 10:00 a.m. | The open: 1.35, up 54.1% from the previous close |
| 11:53 a.m. | Volume since 4:00 a.m. passes the whole float, 152.27 million shares |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 1.24, 32.5% below the high |
The shape is a fixed rule, not a judgement: gapped 10% or more at the open, ran 10% or more from the open to the high, and faded if it gave back 30% or more of that move by the close.
The day in numbers
- Volume, from the one-minute bars: 71.46 million shares before the 9:30 a.m. open (39%), 0 in the first 30 minutes (0%), and 113.39 million in the rest of the day to 8 p.m. (61%).
- Float rotation, the volume since 4 a.m. against the float of 152.27 million shares: past it once at 11:53 a.m.
- The halt at 9:15 a.m.: up 5.0% in the 5 minutes into it, reopened at 1.35, down 13.7% from the last trade before it, then up 1.5% over the next 5 minutes.
- Other days GPRO met the small-cap rule in our recaps: 3, the latest on September 4, 2026.
Halts
| Halted | Resumed | Length | Reason in the feed |
|---|---|---|---|
| 9:15 a.m. | 10:00 a.m. | 45 min 0 s | News pending |
On this date the LULD plan ran under Amendment 18, in force from February 24, 2020: no band doubling at the open, and the closing doubling only for Tier 1 stocks and Tier 2 stocks whose previous close was at or below three dollars. See LULD halts or work out a band with the LULD calculator.
Trade this day
Replay GPRO on September 1, 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.