Hindsight Markets Small-cap stocks on September 21, 2026
SPRU on September 21, 2026: why it ran
On September 21, 2026, SPRU opened up 19.4% from the previous close of 1.91 and reached 2.40 at 9:11 a.m. ET. The exchange did not halt it.
- Previous close
- 1.91
- Open, 9:30 a.m.
- 2.28
- Gap at the open
- up 19.4%
- Pre-market high
- 2.40 at 9:11 a.m.
- High, 4 a.m. to 4 p.m.
- 2.40 at 9:11 a.m.
- Low, 4 a.m. to 4 p.m.
- 1.90
- After-hours high, 4 p.m. to 8 p.m.
- 2.15 at 4:04 p.m.
- Last trade before 4:00 p.m.
- 2.04
- Volume
- 603,054
- Relative volume
- 13.7x
- Float
- 13.83 million shares, from filings as of September 21, 2026
- Shares outstanding
- 19.25 million
- Halts
- none in the halt feed
Why it ran
News and SEC filings for SPRU published between the previous session's close and the first minute SPRU traded 20% above it, at 4:38 a.m. ET, newest first, from the same feeds the replay shows.
No news found before the move.
How it traded
Gap and fade. It gapped up 19.4% to 2.28 at the open and traded below the open by 4:00 p.m., at 2.04.
| Time (ET) | What happened |
|---|---|
| 4:38 a.m. | First trade 20% above the previous close of 1.91 |
| 9:11 a.m. | Pre-market high, 2.40 |
| 9:11 a.m. | High of the day to the close, 2.40 |
| 9:30 a.m. | The open: 2.28, up 19.4% from the previous close |
| 3:59 p.m. | Last trade before the 4:00 p.m. close, 2.04, 15.0% 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: 238,933 shares before the 9:30 a.m. open (40%), 89,075 in the first 30 minutes (15%), and 275,046 in the rest of the day to 8 p.m. (46%).
- In our recaps, this is the only day SPRU met the small-cap rule.
Halts
The exchange's halt feed shows no halts for SPRU 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 SPRU on September 21, 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.