Hindsight Markets Small-cap stocks on September 1, 2026
UPC on September 1, 2026: why it ran
On September 1, 2026, UPC opened up 0.0% from the previous close of 4.58 and reached 4.76 at 11:13 a.m. ET. The exchange did not halt it.
- Previous close
- 4.58
- Open, 9:30 a.m.
- 4.58
- Gap at the open
- up 0.0%
- Pre-market high
- 4.69 at 5:32 a.m.
- High, 4 a.m. to 4 p.m.
- 4.76 at 11:13 a.m.
- Low, 4 a.m. to 4 p.m.
- 4.26
- After-hours high, 4 p.m. to 8 p.m.
- 6.20 at 6:37 p.m.
- Last trade before 4:00 p.m.
- 4.39
- Volume
- 810,859
- Relative volume
- 17.5x
- Float
- 4.95 million shares, from filings as of September 1, 2026
- Shares outstanding
- 5.02 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for UPC published between the previous session's close and the first minute UPC traded 20% above it, at 6:10 p.m. ET, newest first, from the same feeds the replay shows.
How it traded
| Time (ET) | What happened |
|---|---|
| 5:32 a.m. | Pre-market high, 4.69 |
| 9:30 a.m. | The open: 4.58, up 0.0% from the previous close |
| 11:13 a.m. | High of the day to the close, 4.76 |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 4.39, 7.8% below the high |
| 6:08 p.m. | SEC filing SCHEDULE 13G: |
| 6:09 p.m. | SEC filing SCHEDULE 13G: |
| 6:09 p.m. | SEC filing SCHEDULE 13G: |
| 6:10 p.m. | First trade 20% above the previous close of 4.58 |
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
- From news to the move: the first trade 20% above the previous close came less than a minute after the latest SEC filing before it (SCHEDULE 13G, 6:09 p.m.).
- Volume, from the one-minute bars: 3 shares before the 9:30 a.m. open (0%), 2,490 in the first 30 minutes (0%), and 808,366 in the rest of the day to 8 p.m. (100%).
- Other days UPC met the small-cap rule in our recaps: 2, the latest on September 2, 2026.
- The next session, September 2, 2026, it gapped up 17.8% at 9:30 a.m.
Halts
The exchange's halt feed shows no halts for UPC 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 UPC 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.