Hindsight Markets Small-cap stocks on August 31, 2026
GPRO on August 31, 2026: why it ran
On August 31, 2026, GPRO opened up 1.7% from the previous close of 0.5999 and reached 0.8800 at 3:58 p.m. ET. The exchange did not halt it.
- Previous close
- 0.5999
- Open, 9:30 a.m.
- 0.6100
- Gap at the open
- up 1.7%
- Pre-market high
- 0.6157 at 7:28 a.m.
- High, 4 a.m. to 4 p.m.
- 0.8800 at 3:58 p.m.
- Low, 4 a.m. to 4 p.m.
- 0.5989
- After-hours high, 4 p.m. to 8 p.m.
- 1.44 at 5:51 p.m.
- Last trade before 4:00 p.m.
- 0.8744
- Volume
- 67.14 million
- Relative volume
- 39.3x
- Float
- 152.27 million shares, from filings as of August 31, 2026
- Shares outstanding
- 184.50 million
- Halts
- none in the halt feed
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 11:00 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Intraday run. It opened up 1.7% at 0.6100, then ran from the open to the high of 0.8800 in 388 minutes.
| Time (ET) | What happened |
|---|---|
| 7:28 a.m. | Pre-market high, 0.6157 |
| 9:30 a.m. | The open: 0.6100, up 1.7% from the previous close |
| 11:00 a.m. | First trade 20% above the previous close of 0.5999 |
| 3:58 p.m. | High of the day to the close, 0.8800 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 0.8744, 0.6% 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: 140,129 shares before the 9:30 a.m. open (0%), 823,099 in the first 30 minutes (1%), and 66.18 million in the rest of the day to 8 p.m. (99%).
- Other days GPRO met the small-cap rule in our recaps: 3, the latest on September 4, 2026.
Halts
The exchange's halt feed shows no halts for GPRO that day.
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 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.