Hindsight Markets Small-cap stocks on September 17, 2026
CPOP on September 17, 2026: why it ran
On September 17, 2026, CPOP opened up 0.0% from the previous close of 3.13 and reached 3.72 at 3:59 p.m. ET. The exchange did not halt it.
- Previous close
- 3.13
- Open, 9:30 a.m.
- 3.13
- Gap at the open
- up 0.0%
- Pre-market high
- 3.40 at 5:09 a.m.
- High, 4 a.m. to 4 p.m.
- 3.72 at 3:59 p.m.
- Low, 4 a.m. to 4 p.m.
- 3.05
- After-hours high, 4 p.m. to 8 p.m.
- 4.93 at 7:58 p.m.
- Last trade before 4:00 p.m.
- 3.68
- Volume
- 1.01 million
- Relative volume
- 34.3x
- Float
- 628,324 shares, from filings as of September 17, 2026
- Shares outstanding
- 937,977
- Halts
- none in the halt feed
Why it ran
News and SEC filings for CPOP published between the previous session's close and the first minute CPOP traded 20% above it, at 4:00 p.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 0.0% at 3.13, then ran from the open to the high of 3.72 in 389 minutes.
| Time (ET) | What happened |
|---|---|
| 5:09 a.m. | Pre-market high, 3.40 |
| 9:30 a.m. | The open: 3.13, up 0.0% from the previous close |
| 3:59 p.m. | High of the day to the close, 3.72 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 3.68, 1.1% below the high |
| 4:00 p.m. | First trade 20% above the previous close of 3.13 |
| 4:45 p.m. | Volume since 4:00 a.m. passes the whole float, 628,324 shares |
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: 562 shares before the 9:30 a.m. open (0%), 1,534 in the first 30 minutes (0%), and 1.01 million in the rest of the day to 8 p.m. (100%).
- Float rotation, the volume since 4 a.m. against the float of 628,324 shares: past it once at 4:45 p.m.
- Other days CPOP met the small-cap rule in our recaps: 1, the latest on September 18, 2026.
- The next session, September 18, 2026, it was up 12.5% from its previous close at the 4:00 p.m. close.
Halts
The exchange's halt feed shows no halts for CPOP 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 CPOP on September 17, 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.